English Safety Data Sheet Database 中文版 MSDS

triphenylphosphine

CAS No. 603-35-0 | PubChem CID 11776
Section 1. Identification
Chemical Nametriphenylphosphine CAS No.603-35-0
Synonymsphosphorustriphenyl Chinese Name三苯(基)膦
Molecular FormulaC18H15P Molecular Weight262.30
UN No. Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS05 · Corrosive GHS07 · Irritant GHS08 · Health Hazard
Hazard Statements H302H317H318H372H373H413H315H319H335
Precautionary Statements P260P261P264P264+P265P270P272P273P280P301+P317P302+P352P305+P354+P338P317P319P321P330P333+P317P362+P364P501P271P304+P340P305+P351+P338P332+P317P337+P317P403+P233P405

Section 2. Hazards Identification

This chemical does not meet GHS hazard criteria for 0.5% (6 of 1290) of reports.

H302 (97.1%): Harmful if swallowed [Warning Acute toxicity, oral]

H317 (99.4%): May cause an allergic skin reaction [Warning Sensitization, Skin]

H318 (12.8%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

H372 (23.1%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

H373 (21.1%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

H413 (64.1%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]

P260, P261, P264, P264+P265, P270, P272, P273, P280, P301+P317, P302+P352, P305+P354+P338, P317, P319, P321, P330, P333+P317, P362+P364, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1290 reports by companies from 56 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria per 6 of 1290 reports by companies.

There are 55 notifications provided by 1284 of 1290 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.

H302: Harmful if swallowed [Warning Acute toxicity, oral]

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

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

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

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

H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

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

P260, P261, P264, P264+P265, P270, P271, P272, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

P261, P272, P280, P302+P352, P321, P333+P317, P362+P364, and P501 (click each P-code to see the statement)

Section 4. First-Aid Measures

Fresh air, rest. Refer for medical attention.

Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .

Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer for medical attention.

Rinse mouth. Refer for medical attention .

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Section 5. Fire-Fighting Measures

Fires involving this chemical can be controlled with dry chemical, carbon dioxide, or Halon extinguisher. (NTP, 1992)

Use water spray, foam, powder, carbon dioxide.

FOAM MAY CAUSE FROTHING.

Section 6. Accidental Release Measures

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.

ALKALINE WASTEWATER (PH 11.7) CONTAINING 10 PPM PH3 FROM MFR OF TRIPHENYLPHOSPHINE TREATED WITH 30 PPM OF 0.15% H2O2 SOLN @ 25 °C. ODOR WAS REMOVED IN 4 HR VS 8 @ PH 8.5.

Section 7. Handling and Storage

Excerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]:

Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent dust cloud. For Asbestos, avoid inhalation of dust. Cover spill with plastic sheet or tarp to minimize spreading. Do not clean up or dispose of, except under supervision of a specialist.

SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area.

SMALL SPILL: Pick up with sand or other non-combustible absorbent material and place into containers for later disposal.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Cover powder spill with plastic sheet or tarp to minimize spreading. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2024)

Separated from oxidants and acids. Keep in a well-ventilated room.

Section 8. Exposure Controls / Personal Protection

2.0 [mg/m3], inhalable fraction[German Research Foundation (DFG)]

0.37 [ppm]

8.3 [ppm]

50 [ppm]

(inhalable fraction): 5 mg/m

Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

The substance is mildly irritating to the eyes, skin and respiratory tract.

Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the nervous system. This may result in impaired functions.

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.

PREVENT DISPERSION OF DUST!

Use local exhaust.

Protective gloves. Protective clothing.

Wear safety goggles or face shield.

Do not eat, drink, or smoke during work. Wash hands before eating.

Section 9. Physical and Chemical Properties

Triphenyl phosphine appears as white crystals. (NTP, 1992)

Liquid; Dry Powder; Liquid; CBI; Large Crystals; Other Solid; Dry Powder

Odorless solid; Triboluminescent (emits light when fractured); [Merck Index] White odorless solid; [ICSC] White crystalline solid; [MSDSonline]

ODOURLESS WHITE CRYSTALS.

MONOCLINIC PLATELETS OR PRISMS FROM ETHER

WHITE CRYSTALLINE SOLID

ODORLESS

greater than 680 °F at 760 mmHg (NTP, 1992)

MORE THAN 360 °C

176 °F (NTP, 1992)

356 °F (NTP, 1992)

180 °C OC.

182 °C c.c.

Insoluble (NTP, 1992)

FREELY SOL IN ETHER; SOL IN BENZENE, CHLOROFORM, GLACIAL ACETIC ACID; LESS SOL IN ALCOHOL; PRACTICALLY INSOL IN WATER

SOL IN CARBON TETRACHLORIDE

Solubility in water, mg/l at 25 °C: 0.09 (very poor)

1.194 at 77 °F (NTP, 1992) - Denser than water; will sink

1.075 @ 80 °C/4 °C

1.1 g/cm³

1.194 @25 °C

Vapor pressure, Pa at 50 °C: 0.017

Positive

Agilent XCT

Electrospray ionization

formic acid (5.3nM)

MeOH (80%)

DOI:10.1002/rcm.8545

MAX ABSORPTION (DILUTED ALCOHOL): 260 NM (LOG E= 4.0); INDEX OF REFRACTION: 1.6358 @ 80 °C/D

TRIBOLUMINESCENT

Schoenflies notation

Angular frequency

Chemical bond

Chemical shift

Crystal structure

External quantum efficiency

Formula unit

Fusion temperature

Internuclear distance

Luminescence

Section 10. Stability and Reactivity

Triphenylphosphine is a flammable solid which slowly oxidizes in air to form triphenylphosphine oxide. It is insoluble in water.

Amines, Phosphines, and Pyridines

Reducing Agents, Strong

Highly Flammable

TRIPHENYL PHOSPHINE reacts vigorously with oxidizing materials. (NTP, 1992).

Section 11. Toxicological Information

The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Cough. Sore throat.

Redness.

Redness. Pain.

Neurotoxin - Other CNS neurotoxin

LC50 (rat) = 1,135 ppm/4h

CNS EFFECTS: WEAKNESS & ATAXIA ONLY SYMPTOMS. IRRITANT EFFECTS: SLIGHT SKIN IRRITANT IN GUINEA PIG. /FROM TABLE/

DURING INHALATION EXPOSURE MALE CHR-CD RATS SHOWED MILD RESP IRRITATION; SEVERE WT LOSS OCCURRED IMMEDIATELY AFTER EXPOSURE, FOLLOWED BY NORMAL RATE OF WT GAIN. MILD WT LOSS OCCURRED DURING 10-DAY EXPOSURE PERIOD, FOLLOWED BY NORMAL WT GAIN.

Triphenylphosphine (TPP) was tested for mutagenicity in the Salmonella/microsome preincubation assay using a protocol approved by the National Toxicology Program. TPP was tested over a wide range of doses (0, 89, 285, 854, 2733 and 8200 ug/plate) in four Salmonella typhimurium strains (TA98, TA100, TA1535, and TA1537) in the presence and absence of Aroclor-induced rat or hamster liver S9. TPP was negative in these tests and the highest ineffective dose level tested (not causing formation of a precipitate) in any Salmonella tester strain was 89 ug/plate.

Bioaccumulation of this chemical may occur in the environment.

Section 12. Ecological Information

Bioaccumulation of this chemical may occur in the environment.

Source: PubChem CID 11776 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:17:20.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.