2-vinylpyridine

This chemical does not meet GHS hazard criteria for 26.4% (57 of 216) of reports.

H226 (55.6%): Flammable liquid and vapor [Warning Flammable liquids]

H301 (49.1%): Toxic if swallowed [Danger Acute toxicity, oral]

H302 (24.5%): Harmful if swallowed [Warning Acute toxicity, oral]

H311 (53.7%): Toxic in contact with skin [Danger Acute toxicity, dermal]

H314 (55.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H317 (25.5%): May cause an allergic skin reaction [Warning Sensitization, Skin]

H318 (33.8%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

H331 (27.3%): Toxic if inhaled [Danger Acute toxicity, inhalation]

H411 (25%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P301+P316, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P321, P330, P333+P317, P361+P364, P362+P364, P363, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 216 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria per 57 of 216 reports by companies.

There are 12 notifications provided by 159 of 216 reports by companies with hazard statement code(s).

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H226: Flammable liquid and vapor [Warning Flammable liquids]

H301: Toxic if swallowed [Danger Acute toxicity, oral]

H311: Toxic in contact with skin [Danger Acute toxicity, dermal]

H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H317: May cause an allergic skin reaction [Warning Sensitization, Skin]

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]

H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]

H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]

H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P203, P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P319, P321, P330, P333+P317, P361+P364, P362+P364, P363, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

H310: Fatal in contact with skin [Danger Acute toxicity, dermal]

H315: Causes skin irritation [Warning Skin corrosion/irritation]

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P272, P280, P301+P316, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P308+P316, P316, P319, P321, P330, P332+P317, P333+P317, P337+P317, P361+P364, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

Use powder, AFFF, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Personal protection: chemical protection suit.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

ALL OPERATIONS INVOLVING HANDLING ... SHOULD BE CONDUCTED IN WELL-VENTILATED CONDITIONS; PROCESS PLANT SHOULD ... BE ENCLOSED & FITTED WITH LOCAL EXHAUST VENTILATION.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

ACUTE TOXICITY INFORMATION ON ANIMALS & EXPERIENCE WITH INTERMITTENT EXPOSURES IN MAN SHOW THAT MORE THAN ORDINARY CARE IS NEEDED TO AVOID SKIN CONTACT & INHALATION.

SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.

Fireproof. Separated from strong oxidants, strong acids and food and feedstuffs. Keep in the dark. Well closed. Store only if stabilized.

No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20 °C.

The substance may cause effects on the skin. This may result in delayed burns. The substance is severely irritating to the eyes and respiratory tract.

Repeated or prolonged contact may cause skin sensitization.

Depending on the extent of possible contact, workers should be provided with personal protective equipment. A charcoal gas mask canister respirator has been found to be effective against a 2% pyridine concentration at 30 l/min for 1 hr. Rubber and plastic gloves should not be relied upon to prevent skin contact because pyridine and many of its derivatives penetrate these materials ... . /Pyridine, homologs, and derivatives/

NO open flames, NO sparks and NO smoking. Above 32 °C use a closed system, ventilation and explosion-proof electrical equipment. Do NOT expose to friction or shock.

PREVENT GENERATION OF MISTS! AVOID ALL CONTACT!

Use ventilation, local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear face shield or eye protection in combination with breathing protection.

Do not eat, drink, or smoke during work.

Colorless liquid with an unpleasant odor; [HSDB]

COLOURLESS LIQUID WITH PUNGENT ODOUR.

COLORLESS LIQUID

Pungent unpleasant odor

159.5 °C

159-160 °C

The Guide in the 42 °C

Very soluble in alcohol, ether, acetone

Soluble in oxygenated and chlorinated solvents

In water, 2.75X10+4 mg/l @ 20 °C

Solubility in water: moderate

0.9985 @ 20 °C/0 °C

Relative density (water = 1): 1.00

10 MM HG @ 44.5 °C

Vapor pressure, kPa at 44.5 °C: 1.33

log Kow= 1.54

DECOMPOSITION BY HEAT IS ACCOMPANIED BY RELEASE OF DANGEROUS CYANIDE FUMES.

When heated to decomp ... emits toxic fumes of /nitrogen oxides/.

1.17 mPa.s @ 20 °C

Odor Threshold Low: 0.3 [ppm]

Odor Threshold High: 0.5 [ppm]

[HSDB] Odor threshold form HSDB

THE ODOR OF 2-VINYLPYRIDINE CAN BE DETECTED @ LEVELS OF APPROX 0.3 PPM & IS QUITE STRONG @ 0.5 PPM.

1.16 mg/cu m (odor low); 1.94 mg/cu m (odor high).

MAX ABSORPTION (ALCOHOL): 238 NM (LOG E= 4.1); 282 NM (LOG E= 3.8); INDEX OF REFRACTION: 1.5495 AT 20 °C/D; SADTLER REFERENCE NUMBER: 15806 (IR, PRISM); 155 (NMR, VARIAN)

pKa= 4.98

CONVERSION FACTORS: 1 MG/L IS EQUIVALENT TO 233 PPM, 1 PPM IS EQUIVALENT TO 4.3 MG/CU M

UV: 6-110 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /Pyridine, 3-vinyl/

Dissolves in water to extent of 2.5%; water dissolves in it to 15%; soluble in dilute acids, hydrocarbons, alcohols, ketones, esters. Commercial material contains inhibitor. Combustible. /Vinylpyridine/

Dielectric constant

Optical coefficient

Refractive index

Viscosity

Nitrogen Compounds -> Pyridines

Vinyl pyridine

C: Compounds that autopolymerize due to peroxide formation if inhibitors are depleated or not present

The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

Cough. Headache. Nausea. Sore throat.

MAY BE ABSORBED! Redness. Serious skin burns. Pain. Further see Inhalation.

Redness. Pain.

Further see Inhalation.

Neurotoxin - Other CNS neurotoxin

Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.

Dermatotoxin - Skin burns.

Skin Sensitizer - An agent that can induce an allergic reaction in the skin.

Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

LC50 (rat) = 610 mg/m3

LD50 RAT ORAL 100-200 MG/KG

LD50 RAT INTRAPERITONEAL 100-200 MG/KG

LD50 MOUSE ORAL 400-800 MG/KG

LD50 MOUSE INTRAPERITONEAL 200-400 MG/KG

LD50 GUINEA PIG PERCUTANEOUS LESS THAN 0.5 ML/KG

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . /Aromatic hydrocarbons and related compounds/

Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious or in respiratory arrest. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias if necessary ... Start an IV with D5W /SRP: "To keep open", minimal flow rate/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. Consider drug therapy for pulmonary edema ... . Treat seizures with diazepam (Valium) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Aromatic hydrocarbons and related compounds/

BRIEF EXPOSURES TO UNDETERMINED CONCN OF /2-VINYLPYRIDINE/ DURING LAB USE ... CAUSED EYE, NOSE & THROAT IRRITATION ... HEADACHE, NAUSEA, NERVOUSNESS, & ANOREXIA. SYSTEMIC SYMPTOMS ARE MILD TO TRANSIENT RESEMBLING THOSE OBSERVED WITH PYRIDINE EXPOSURES ... APPARENTLY PRODUCED BY LOWER CONCN.

DIRECT SKIN CONTACT WITH THE LIQUID RESULTS IN BURNING PAIN, FOLLOWED BY FAIRLY SEVERE SKIN BURNS IN SPITE OF IMMEDIATE ATTEMPTS TO CLEANSE THE SKIN. BURNS DEVELOP REDDISH BROWN COLOR THAT DISAPPEARS IN ... ABOUT 1 MO. SKIN SENSITIZATION HAS BEEN OBSERVED ... .

AT ... CONCN ... /ABOVE 0.5 PPM 2-VINYLPYRIDINE HAS/ A VERY UNPLEASANT NAUSEATING ODOR. ... THE UNPLEASANT ODOR CAN BE TOLERATED @ CONCN THAT WILL PRODUCE ACUTE SYMPTOMS & IRRITATIONS.

INHALATION TOXICITY OF 4-VINYLPYRIDINE IS GREATER THAN ... 2-VINYLPYRIDINE, & 4-VINYLPYRIDINE IS DEFINITELY MORE IRRITATING TO MUCOUS MEMBRANES.

For more Human Toxicity Excerpts (Complete) data for 2-VINYLPYRIDINE (6 total), please visit the HSDB record page.

2-VINYLPYRIDINE ... /IS/ BETWEEN THE AMINOPYRIDINES & PYRIDINE IN ... ACUTE TOXICITY FOR RATS & MICE ... /IT IS/ ABSORBED FROM GI TRACT, SKIN & RESP TRACT IN THESE ANIMALS, ABSORPTION BY THESE ROUTES RESULTS IN WEAKNESS, ATAXIA, VASODILATATION, RESP DISTRESS, & CONVULSIONS.

... EXPOSURE TO VAPOR OF 2-VINYLPYRIDINE RESULTS IN NASAL & EYE IRRITATION WITH ACCELERATED RESPIRATION & RESPIRATORY DISTRESS /IN RATS & MICE/. INSTILLATION OF UNDILUTED LIQUID IN RABBIT EYE CAUSES MODERATELY SEVERE EYE IRRITATION. SKIN SENSITIZATION WAS PRODUCED IN SOME GUINEA PIGS ... .

MORTALITY RATE WAS 0/3 FOR RATS EXPOSED BY INHALATION TO 160 PPM/6 HR. /FROM TABLE/

1.5 HR WAS REQUIRED FOR 100% MORTALITY TO OCCUR IN RATS INHALING A CALCULATED CONCN OF 5500 PPM. /FROM TABLE/

MUTAGENIC ACTIVITY COULD NOT BE ADEQUATELY ASSESSED IN SALMONELLA TYPHIMURIUM/MAMMALIAN MICROSOME SYSTEM USING STRAINS TA1535, TA98 & TA100 WITH & WITHOUT S-9 MIX BECAUSE OF SEVERE TOXICITY.

2-Vinylpyridine (CAS # 100-60-6, 97.34%) was evaluated for subchronic oral toxicity in Crl:CD rats (30/sex/dose level) gavaged with doses of 0, 20, 60, or 180 mg/kg/day, 5 days/week for approximately 43 or 92 days. Three female rats (2/30 at 180 mg/kg/day, 1/30 at 60 mg/kg/day) died of a potential toxic cause on Days 15, 65, and 42, respectively. High dose rats exhibited clinical signs including convulsions and sialorrhea. A high dose regimen was also associated with diminished weight gain with decreased feed consumption in males, reduced feed consumption in 92-day females, slight platelet count elevations (males and females), and slightly depressed aspartate aminotransferase activity in males. On necropsy, "relevent lesions" in the study lethalities included pulmonary congestion and hemorrhage and sanguinous nasal discharge in the 65-day high dose female; congested lungs in the 15-day high dose female; salivation and hyperemic lungs in the 42-day 60 mg/kg female. While microscopic examination suggested gavage error as cause of death in 2 lethalities, one high-dose female exhibited slight congestion of lungs, liver, and kidneys, and minor hemorrhage of the thymus. At terminal necropsy, organ weights were increased, including relative liver (60, 180 mg/kg/day males and females), kidney (all-dose males and 180 mg/kg females), brain (180 mg/kg/day males), adrenal (20, 180 mg/kg/day males), testes (180 mg/kg/day males), and ovary (180 mg/kg/day females) weights. Increased organ weights were also significant on Interim 43-day sacrifice, including relative liver (60, 180 mg/kg males; 180 mg/kg females), kidney (180 mg/kg males), brain (20, 180 mg/kg males), adrenal (20, 180 mg/kg/day males), and testes (20, 180 mg/kg/day males) weights; absolute heart and relative heart to brain ratios were significantly decreased in 92-day males, while 43-day 20 mg/kg/day females had increased relative heart to brain ratios. Both 60 and 180 mg/kg/day regimens in males and females were associated with hemorrhage and thickening of the epithelial nonglandular stomach, the epithelial expansion attributable to acanthosis, hyperkeratosis, acute inflammatory cell infiltrates, and cytodegenerative necrosis on microscopic exam. Treatment-related lesions were not observed in 20 mg/kg/day males or females.

2-Vinylpyridine's production and use as a monomer for polyvinylpyridine polymers used as tire-cord binders, in synthetic rubbers, photographic film, ion exchange resins as well as in pharmaceuticals may result in its release to the environment through various waste streams. If released to air, an estimated vapor pressure of 2.6 mm Hg at 25 °C indicates 2-vinylpyridine will exist solely as a vapor in the ambient atmosphere. Vapor-phase 2-vinylpyridine will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals and ozone; the half-lives for these reactions in air are estimated to be 6.8 and 13 hours, respectively. If released to soil, 2-vinylpyridine is expected to have moderate mobility based upon an estimated Koc of 160. 2-Vinylpyridine has a pKa of 4.98, which indicates that this compound will partially exist in the protonated form in moist acidic soils; cations adsorb more strongly to soils than neutral molecules. Therefore, the mobility of 2-vinylpyridine is expected to be much lower in acidic soils than in neutral or alkaline soils. Volatilization of the neutral species from moist soil surfaces is expected to be an important fate process based upon an estimated Henry's Law constant of 3.6X10-6 atm-cu m/mole. However, in moist acidic soils, where the protonated form is the dominant species, volatilization will not be important because cations do not volatilize. 2-Vinylpyridine may volatilize from dry soil surfaces based upon its vapor pressure. Biodegradation of 2-vinylpyridine in soil or water is not expected to be a major fate process based on a single aerobic screening test showing that 2-vinylpyridine was not biodegraded over a 4-week period. If released into water, 2-vinylpyridine is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization of the neutral species from water surfaces is expected to be an important fate process based upon this compound's estimated Henry's Law constant. Estimated volatilization half-lives for a model river and model lake are 10 and 80 days, respectively. In acidic waters where the protonated form is the dominant species, volatilization will not be an important fate process since cations do not volatilize. An estimated BCF of 3 suggests the potential for bioconcentration in aquatic organisms is low. Occupational exposure to 2-vinylpyridine may occur through inhalation and dermal contact with this compound at workplaces where 2-vinylpyridine is produced or used. Monitoring data indicate that the most common non-occupational exposure is likely to result from either passive or active inhalation of cigarette smoke containing 2-vinylpyridine. (SRC)

2-Vinylpyridine's production and use as a monomer for polyvinylpyridine polymers used as tire-cord binders(1), in synthetic rubbers, photographic film, ion exchange resins as well as in pharmaceuticals(2) may result in its release to the environment through various waste streams(SRC).

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 160(SRC), determined from a log Kow of 1.54(2) and a regression-derived equation(3), indicates that 2-vinylpyridine is expected to have moderate mobility in soil(SRC). 2-Vinylpyridine has a pKa of 4.98(6), which indicates that this compound will partially exist in the protonated form in moist acidic soils, and cations adsorb more strongly to soils than neutral molecules. Therefore, the mobility of 2-vinylpyridine is expected to be much lower in acidic soils than in neutral or alkaline soil(SRC). Volatilization of the neutral species of 2-vinylpyridine from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 3.6X10-6 atm-cu m/mole(SRC), using a fragment constant estimation method(4), however, the protonated form will not volatilize(SRC). The potential for volatilization of 2-vinylpyridine from dry soil surfaces may exist(SRC) based upon an estimated vapor pressure of 2.6 mm Hg(SRC), determined from a fragment constant method(5). Biodegradation of 2-vinylpyridine in soil is not expected to be a major fate process based on a single aerobic screening test showing that 2-vinylpyridine was not biodegraded over a 4-week period(2).

AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 160(SRC), determined from a log Kow of 1.54(2)and a regression-derived equation(3), indicates that 2-vinylpyridine is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 3.6X10-6 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 10 and 80 days, respectively(SRC). The pKa of 2-vinylpyridine is 4.98(7), indicating this compound will partially exist in the ionized form in acidic waters and cations do not volatilize(SRC). According to a classification scheme(5), a estimated BCF of 3(SRC), from its log Kow(2) and a regression-derived equation(6), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Biodegradation of 2-vinylpyridine in water is not expected to be a major fate process based on a single aerobic screening test showing that 2-vinylpyridine was not biodegraded over a 4 week period(2).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 2-vinylpyridine, which has an estimated vapor pressure of 2.6 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 2-vinylpyridine is degraded in the atmosphere by reaction with photochemically- produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 6.8 hours(SRC), calculated from its rate constant of 5.67X10-11 cu cm/molecule-sec at 25 °C(3). Vapor-phase 2-vinylpyridine is also degraded in the atmosphere by reaction with ozone(SRC); the half-life for this reaction in air is estimated to be 13 hours(SRC), calculated from its rate constant of 2.1X10-17 cu cm/molecule-sec at 25 °C(SRC), determined using a structure estimation method(3).

AEROBIC: 2-Vinylpyridine, present at 100 mg/l, was not biodegraded, as measured by BOD, in 4 weeks using an activated sludge inoculum at 30 mg/l and the Japanese MITI test(1).

The rate constant for the vapor-phase reaction of 2-vinylpyridine with photochemically-produced hydroxyl radicals has been measured as 5.67X10-11 cu cm/molecule-sec at 25 °C(1). This corresponds to an atmospheric half-life of about 6.8 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). The rate constant for the vapor-phase reaction of 2-vinylpyridine with ozone has been estimated as 2.1X10-17 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(2). This corresponds to an atmospheric half-life of about 13 hours at an atmospheric concentration of 7X10+11 ozone molecules per cu cm(3). 2-Vinylpyridine is not expected to undergo hydrolysis in the environment due to the lack of hydrolyzable functional groups(4). Data are not available to assess this compound's potential for direct photolysis. A pKa of 4.98(5) indicates 2-vinylpyridine will partially exist in the protonated form in acidic waters and soils.

An estimated BCF of 3 was calculated for 2-vinylpyridine(SRC), using a log Kow of 1.54(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

The Koc of 2-vinylpyridine is estimated as 160(SRC), using a measured log Kow of 1.54(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 2-vinylpyridine is expected to have moderate mobility in soil. The pKa of 2-vinylpyridine is 4.98(4), which indicates that this compound will partially exist in the protonated form under acidic conditions. Cations adsorb more strongly to soil surfaces than neutral molecules thus adsorption of 2-vinylpyridine is expected to be greater in acidic soils(SRC).

The Henry's Law constant for 2-vinylpyridine is estimated as 3.6X10-6 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that 2-vinylpyridine is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 10 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 80 days(SRC). 2-Vinylpyridine's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). However, 2-vinylpyridine is a weak base with a pKa of 4.98(4), which indicates this compound will partially exist in the protonated form in acidic conditions; cations do not volatilize from either moist soil or water surfaces. The potential for volatilization of 2-vinylpyridine from dry soil surfaces may exist(SRC) based upon an estimated vapor pressure of 2.6 mm Hg(SRC), determined from a fragment constant method(3).

2-Vinylpyridine was detected in 2 of 21 industrial categories of wastewater effluents(1). Extract from the wastewater of a public owned sewage treatment works contained 2-vinylpyridine at an average concn of 68 mg/l; and the extract from wastewater of a rubber processing facility contained 2-vinylpyridine at an average concn of 209 mg/l(1).

2-Vinylpyridine's production and use as a monomer for polyvinylpyridine polymers used as tire-cord binders, in synthetic rubbers, photographic film, ion exchange resins as well as in pharmaceuticals may result in its release to the environment through various waste streams. If released to air, an estimated vapor pressure of 2.6 mm Hg at 25 °C indicates 2-vinylpyridine will exist solely as a vapor in the ambient atmosphere. Vapor-phase 2-vinylpyridine will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals and ozone; the half-lives for these reactions in air are estimated to be 6.8 and 13 hours, respectively. If released to soil, 2-vinylpyridine is expected to have moderate mobility based upon an estimated Koc of 160. 2-Vinylpyridine has a pKa of 4.98, which indicates that this compound will partially exist in the protonated form in moist acidic soils; cations adsorb more strongly to soils than neutral molecules. Therefore, the mobility of 2-vinylpyridine is expected to be much lower in acidic soils than in neutral or alkaline soils. Volatilization of the neutral species from moist soil surfaces is expected to be an important fate process based upon an estimated Henry's Law constant of 3.6X10-6 atm-cu m/mole. However, in moist acidic soils, where the protonated form is the dominant species, volatilization will not be important because cations do not volatilize. 2-Vinylpyridine may volatilize from dry soil surfaces based upon its vapor pressure. Biodegradation of 2-vinylpyridine in soil or water is not expected to be a major fate process based on a single aerobic screening test showing that 2-vinylpyridine was not biodegraded over a 4-week period. If released into water, 2-vinylpyridine is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization of the neutral species from water surfaces is expected to be an important fate process based upon this compound's estimated Henry's Law constant. Estimated volatilization half-lives for a model river and model lake are 10 and 80 days, respectively. In acidic waters where the protonated form is the dominant species, volatilization will not be an important fate process since cations do not volatilize. An estimated BCF of 3 suggests the potential for bioconcentration in aquatic organisms is low. Occupational exposure to 2-vinylpyridine may occur through inhalation and dermal contact with this compound at workplaces where 2-vinylpyridine is produced or used. Monitoring data indicate that the most common non-occupational exposure is likely to result from either passive or active inhalation of cigarette smoke containing 2-vinylpyridine. (SRC)

2-Vinylpyridine's production and use as a monomer for polyvinylpyridine polymers used as tire-cord binders(1), in synthetic rubbers, photographic film, ion exchange resins as well as in pharmaceuticals(2) may result in its release to the environment through various waste streams(SRC).

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 160(SRC), determined from a log Kow of 1.54(2) and a regression-derived equation(3), indicates that 2-vinylpyridine is expected to have moderate mobility in soil(SRC). 2-Vinylpyridine has a pKa of 4.98(6), which indicates that this compound will partially exist in the protonated form in moist acidic soils, and cations adsorb more strongly to soils than neutral molecules. Therefore, the mobility of 2-vinylpyridine is expected to be much lower in acidic soils than in neutral or alkaline soil(SRC). Volatilization of the neutral species of 2-vinylpyridine from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 3.6X10-6 atm-cu m/mole(SRC), using a fragment constant estimation method(4), however, the protonated form will not volatilize(SRC). The potential for volatilization of 2-vinylpyridine from dry soil surfaces may exist(SRC) based upon an estimated vapor pressure of 2.6 mm Hg(SRC), determined from a fragment constant method(5). Biodegradation of 2-vinylpyridine in soil is not expected to be a major fate process based on a single aerobic screening test showing that 2-vinylpyridine was not biodegraded over a 4-week period(2).

AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 160(SRC), determined from a log Kow of 1.54(2)and a regression-derived equation(3), indicates that 2-vinylpyridine is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(3) based upon an estimated Henry's Law constant of 3.6X10-6 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). Using this Henry's Law constant and an estimation method(3), volatilization half-lives for a model river and model lake are 10 and 80 days, respectively(SRC). The pKa of 2-vinylpyridine is 4.98(7), indicating this compound will partially exist in the ionized form in acidic waters and cations do not volatilize(SRC). According to a classification scheme(5), a estimated BCF of 3(SRC), from its log Kow(2) and a regression-derived equation(6), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Biodegradation of 2-vinylpyridine in water is not expected to be a major fate process based on a single aerobic screening test showing that 2-vinylpyridine was not biodegraded over a 4 week period(2).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 2-vinylpyridine, which has an estimated vapor pressure of 2.6 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase 2-vinylpyridine is degraded in the atmosphere by reaction with photochemically- produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 6.8 hours(SRC), calculated from its rate constant of 5.67X10-11 cu cm/molecule-sec at 25 °C(3). Vapor-phase 2-vinylpyridine is also degraded in the atmosphere by reaction with ozone(SRC); the half-life for this reaction in air is estimated to be 13 hours(SRC), calculated from its rate constant of 2.1X10-17 cu cm/molecule-sec at 25 °C(SRC), determined using a structure estimation method(3).

AEROBIC: 2-Vinylpyridine, present at 100 mg/l, was not biodegraded, as measured by BOD, in 4 weeks using an activated sludge inoculum at 30 mg/l and the Japanese MITI test(1).

The rate constant for the vapor-phase reaction of 2-vinylpyridine with photochemically-produced hydroxyl radicals has been measured as 5.67X10-11 cu cm/molecule-sec at 25 °C(1). This corresponds to an atmospheric half-life of about 6.8 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). The rate constant for the vapor-phase reaction of 2-vinylpyridine with ozone has been estimated as 2.1X10-17 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(2). This corresponds to an atmospheric half-life of about 13 hours at an atmospheric concentration of 7X10+11 ozone molecules per cu cm(3). 2-Vinylpyridine is not expected to undergo hydrolysis in the environment due to the lack of hydrolyzable functional groups(4). Data are not available to assess this compound's potential for direct photolysis. A pKa of 4.98(5) indicates 2-vinylpyridine will partially exist in the protonated form in acidic waters and soils.

An estimated BCF of 3 was calculated for 2-vinylpyridine(SRC), using a log Kow of 1.54(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

The Koc of 2-vinylpyridine is estimated as 160(SRC), using a measured log Kow of 1.54(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 2-vinylpyridine is expected to have moderate mobility in soil. The pKa of 2-vinylpyridine is 4.98(4), which indicates that this compound will partially exist in the protonated form under acidic conditions. Cations adsorb more strongly to soil surfaces than neutral molecules thus adsorption of 2-vinylpyridine is expected to be greater in acidic soils(SRC).

The Henry's Law constant for 2-vinylpyridine is estimated as 3.6X10-6 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that 2-vinylpyridine is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 10 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 80 days(SRC). 2-Vinylpyridine's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). However, 2-vinylpyridine is a weak base with a pKa of 4.98(4), which indicates this compound will partially exist in the protonated form in acidic conditions; cations do not volatilize from either moist soil or water surfaces. The potential for volatilization of 2-vinylpyridine from dry soil surfaces may exist(SRC) based upon an estimated vapor pressure of 2.6 mm Hg(SRC), determined from a fragment constant method(3).

2-Vinylpyridine was detected in 2 of 21 industrial categories of wastewater effluents(1). Extract from the wastewater of a public owned sewage treatment works contained 2-vinylpyridine at an average concn of 68 mg/l; and the extract from wastewater of a rubber processing facility contained 2-vinylpyridine at an average concn of 209 mg/l(1).

2-Vinylpyridine was detected in cigarette smoke at an average concn of 32 nmol/cu m/cigarette in a test chamber(1).

The most probable human exposure to 2-vinylpyridine would be occupational exposure, which may occur through dermal contact or inhalation at places where it is produced or used. Non-occupational exposures are likely to occur from the passive and active inhalation of cigarette smoke(1).

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

/GUIDE 131P: FLAMMABLE LIQUIDS-TOXIC/ Health: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Inhalation or contact with some of these materials will irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution. /Vinylpyridines, inhibited; Vinylpyridines, stabilized/

/GUIDE 131P: FLAMMABLE LIQUIDS-TOXIC/ Fire or Explosion: HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers. Those substances designated with a "P" may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. /Vinylpyridines, inhibited; Vinylpyridines, stabilized/

/GUIDE 131P: FLAMMABLE LIQUIDS-TOXIC/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering. /Vinylpyridines, inhibited; Vinylpyridines, stabilized/

/GUIDE 131P: FLAMMABLE LIQUIDS-TOXIC/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Vinylpyridines, inhibited; Vinylpyridines, stabilized/

For more DOT Emergency Guidelines (Complete) data for 2-VINYLPYRIDINE (8 total), please visit the HSDB record page.

UN 3073; Vinylpyridines, inhibited

IMO 6.1; Vinylpyridines, inhibited

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./

The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.

The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Do not transport with food and feedstuffs.

UN Hazard Class: 6.1; UN Subsidiary Risks: 3 and 8; UN Pack Group: II