English Safety Data Sheet Database 中文版 MSDS

Boron Trichloride

CAS No. 10294-34-5 | PubChem CID 25135
Section 1. Identification
Chemical NameBoron Trichloride CAS No.10294-34-5
Synonymsboronchloride; borontrichloride Chinese Name三氯化硼
Molecular FormulaBCl3 Molecular Weight117.16
UN No.1741 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS04 · Compressed Gas GHS05 · Corrosive GHS06 · Acute Toxic GHS07 · Irritant GHS08 · Health Hazard
Hazard Statements H300H314H330H280H335H318H331H360H370H371
Precautionary Statements P260P264P270P271P280P284P301+P316P301+P330+P331P302+P361+P354P304+P340P305+P354+P338P316P320P321P330P363P403+P233P405P501P261P319P410+P403P203P264+P265P308+P316P317P318

Section 2. Hazards Identification

H300: Fatal if swallowed [Danger Acute toxicity, oral]

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

H330: Fatal if inhaled [Danger Acute toxicity, inhalation]

P260, P264, P270, P271, P280, P284, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P320, P321, P330, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

H280 (92.6%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]

H300+H330 (21.3%): Fatal if swallowed or if inhaled [Danger Acute toxicity, oral; acute toxicity, inhalation]

H300 (99.5%): Fatal if swallowed [Danger Acute toxicity, oral]

H314 (99.5%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H330 (99.5%): Fatal if inhaled [Danger Acute toxicity, inhalation]

H335 (20.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P260, P261, P264, P270, P271, P280, P284, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P320, P321, P330, P363, P403+P233, P405, P410+P403, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 188 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

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.

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

H331: Toxic if inhaled [Danger Acute toxicity, inhalation]

H360: May damage fertility or the unborn child [Danger Reproductive toxicity]

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

P203, P260, P261, P264, P264+P265, P270, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

H280: Contains gas under pressure; may explode if heated [Warning Gases under pressure]

H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]

P260, P261, P264, P264+P265, P270, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P321, P363, P403+P233, P405, P410+P403, and P501 (click each P-code to see the statement)

Section 4. First-Aid Measures

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .

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

Warning: Boron trichloride is extremely corrosive. Caution is advised.

Signs and Symptoms of Acute Boron Trichloride Exposure: Signs and symptoms of acute ingestion of boron trichloride may be severe and include salivation, intense thirst, difficulty in swallowing, chills, pain, and shock. Oral, esophageal, and stomach burns are common. Vomitus generally has a coffee-ground appearance. The potential for circulatory collapse is high following ingestion of boron trichloride. Acute inhalation exposure of boron trichloride may result in sneezing, hoarseness, choking, laryngitis, and respiratory tract irritation. Bleeding of nose and gums, ulceration of the nasal and oral mucosa, bronchitis, pneumonia, dyspnea (shortness of breath), chest pain, and pulmonary edema may also occur. If the eyes have come in contact with boron trichloride, irritation, pain, swelling, corneal erosion, and blindness may result. Dermal exposure may result in dermatitis (red, inflamed skin), severe burns, and pain.

Emergency Life-Support Procedures: Acute exposure to boron trichloride may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination.

Inhalation Exposure:

1. Move victims to fresh air. Emergency personnel should avoid self-exposure to boron trichloride.

2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.

3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.

4. RUSH to a health care facility.

Dermal/Eye Exposure:

1. Remove victims from exposure. Emergency personnel should avoid self- exposure to boron trichloride.

3. Remove contaminated clothing as soon as possible.

4. If eye exposure has occurred, eyes must be flushed with lukewarm water for at least 15 minutes.

5. Wash exposed skin areas THOROUGHLY with soap and water.

6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.

7. RUSH to a health care facility.

Ingestion Exposure:

1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.

2. DO NOT induce vomiting or attempt to neutralize!

3. Rinse mouth with large amounts of water. Inform victims not to swallow this water.

4. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.

5. Activated charcoal is of no value.

6. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert.

7. RUSH to a health care facility. (EPA, 1998)

General First Aid:

· Call 911 or emergency medical service.

· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.

· Move victim to fresh air if it can be done safely.

· Administer oxygen if breathing is difficult.

· If victim is not breathing:

-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.

-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).

-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.

· Remove and isolate contaminated clothing and shoes.

· For minor skin contact, avoid spreading material on unaffected skin.

· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.

· For severe burns, immediate medical attention is required.

· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.

Section 5. Fire-Fighting Measures

It is not flammable. Use dry chemical, carbon dioxide, or dry sand to extinguish. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to absorb vapors. For large fires use water spray, fog, or foam. Do not get water on material itself. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Do not get water inside container. Move container from fire area if you can do so without risk. Stay away from ends of tanks. Spray cooling water on containers that are exposed to flames until well after fire is out. Isolate area until gas has dispersed. (EPA, 1998)

NO water. In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water. NO direct contact with water.

If material involved in fire: Use dry chemical, dry sand, or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.

In case of fire: cool cylinder by spraying with water but avoid contact of the substance with water.

Section 6. Accidental Release Measures

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· Keep unauthorized personnel away.

· Stay upwind, uphill and/or upstream.

· Many gases are heavier than air and will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).

· Ventilate closed spaces before entering, but only if properly trained and equipped.

· Do not touch or walk through spilled material.

· Stop leak if you can do it without risk.

· If possible, turn leaking containers so that gas escapes rather than liquid.

· Prevent entry into waterways, sewers, basements or confined areas.

· Do not direct water at spill or source of leak.

· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.

· Isolate area until gas has dispersed.

HCl - when spill Boron trichloride into water.

Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 100 meters (330 feet) in all directions.

SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1741 datasheet.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. (ERG, 2024)

Immediate precautionary measure

· Isolate spill or leak area for at least 100 meters (330 feet) in all directions.

· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.

· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.

· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions.

When spilled on land

Small spill:

- ISOLATE in all directions: 30 m (100 ft)

Large spill:

- ISOLATE in all directions: 100 m (300 ft)

When spilled in water

- PROTECT people from downwind during DAY time: 0.1 km (0.1 mi)

- PROTECT people from downwind during NIGHT time: 0.2 km (0.2 mi)

- PROTECT people from downwind during DAY time: 0.9 km (0.6 mi)

- PROTECT people from downwind during NIGHT time: 2.8 km (1.7 mi)

- PROTECT people from downwind during NIGHT time: 0.3 km (0.2 mi)

- PROTECT people from downwind during DAY time: 0.6 km (0.4 mi)

- PROTECT people from downwind during NIGHT time: 1.3 km (0.8 mi)

Evacuate danger area! Consult an expert! Ventilation. Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus.

Evacuate danger area! Consult an expert! Ventilation. (Extra personal protection: gas-tight chemical protection suit including self-contained breathing apparatus).

Neutralize spilled material with crushed limestone, soda ash, or lime.

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal and plant life; and conformance with environmental and public health regulations.

Attach an appropriate control valve provided with a trap or check valve and a long piece of flexible hose connected to the control valve outlet. Discharge the gas at a moderate rate into an adequate amount of about 15% aqueous sodium hydroxide or other alkali in a suitable container. When the gas has been discharged, close the valve and transport to neutralization plant for disposal.

Section 7. Handling and Storage

Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]:

Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Isolate area until gas has dispersed. (ERG, 2024)

Fireproof if in building. Separated from food and feedstuffs. See Chemical Dangers.

Fireproof if in building. Separated from food and feedstuffs.

Storage temp: Ambient

Section 8. Exposure Controls / Personal Protection

· Wear positive pressure self-contained breathing apparatus (SCBA).

· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.

· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.

TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].

The compound is currently at the Holding Status AEGLs which have been reviewed by the NAC/AEGL Committee and are on hold due to insufficient data to develop AEGL values.

AEGLs Status: Holding

0.19 [ppm]

2.1 [ppm]

71 [ppm]

0.7 [ppm]

(ceiling value): 0.7 ppm as STEL

Small Fire

· Dry chemical or CO2.

Large Fire

· Water spray, fog or regular foam.

· If it can be done safely, move undamaged containers away from the area around the fire.

· Do not get water inside containers.

· Damaged cylinders should be handled only by specialists.

Fire Involving Tanks

· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.

· Cool containers with flooding quantities of water until well after fire is out.

· Do not direct water at source of leak or safety devices; icing may occur.

· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.

· ALWAYS stay away from tanks in direct contact with flames.

Limit for livestock is 5 ug/ml boron in water. /Boron/

0.5 mg/l maximum (USSR) /Boron in drinking water/

A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of this gas may cause lung oedema. Rapid evaporation of the liquid may cause frostbite. Exposure at high levels could cause death. The effects may be delayed. Medical observation is indicated.

For emergency situations, wear a positive pressure, pressure-demand, full facepiece self-contained breathing apparatus (SCBA) or pressure- demand supplied air respirator with escape SCBA and a fully-encapsulating, chemical resistant suit. (EPA, 1998)

Cold-insulating gloves. Protective clothing. Face shield, or eye protection in combination with breathing protection.

Personnel protection: Wear positive pressure self-contained breathing apparatus. Wear appropriate chemical protective gloves, boots, and goggles.

A shower and eye bath should be conveniently located in case of emergency.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use ventilation, local exhaust or breathing protection.

Cold-insulating gloves. Protective clothing.

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

Section 9. Physical and Chemical Properties

Boron trichloride appears as a colorless gas with a pungent odor. Fumes irritate the eyes and mucous membranes. Corrosive to metals and tissue and is toxic. Under prolonged exposure to fire or intense heat, the containers may rupture violently and rocket. Used as a catalyst in chemical manufacture, in soldering fluxes, and for many other uses.

Gas Vapor

Gas or colorless, fuming liquid with a pungent odor; bp = 12.5 deg C; [ICSC]

GAS OR COLOURLESS FUMING LIQUID WITH PUNGENT ODOUR.

Gas at room temperature

Pungent, irritating odor

Sharp, irritating.

54.5 °F at 760 mmHg (EPA, 1998)

12.5 °C @760 [mm Hg]

-161 °F (EPA, 1998)

-107.3 °C

Solubility in water: reaction

1.35 at 53.6 °F (EPA, 1998) - Denser than water; will sink

4.789 g/L

Relative density (water = 1): 1.35

1.373 @ 0°C

4.03 (EPA, 1998) - Heavier than air; will sink (Relative to Air)

4.03 (Air = 1)

Relative vapor density (air = 1): 4.03

760 mmHg at 54.86 °F (EPA, 1998)

Vapor pressure: 100 Pa (0.75 mm Hg) at -94.0 °C; 1 kPa (7.5 mm Hg) at -70.5 °C; 10 kPa (75 mm Hg) at -37.4 °C; 100 k Pa (750 mm Hg) at 12.3 °C

166 kPa (1250 mm Hg) at 300 K (27 °C)

Vapor pressure, kPa at 20 °C: 150

1250 [mm Hg] @27 °C

Trialkylboranes are stable indefinitely when stored under an inert atmosphere. /Trialkylboranes/

When heated to decomposition it emits toxic fumes of /hydrogens of chloride/.

Decomposed by water or alcohol.

The toxic action of the halogenated borons is considerably influenced by their decomposition products (hydrofluoric acid-, fluoboric acid-, hydrochloric acid-). /Halogenated borons/

1.032 cP at 50 °F

It is corrosive to metals

Vigorously attacks elastomers and packing materials

Strong irritant to tissue. Fumes are corrosive and toxic

23.77 kJ/mol at 12.65 °C; 23.1 kJ/mol at 25 °C

16.7 dynes/cm = 0.0167 N/m at 20 °C

INDEX OF REFRACTION: 1.4195 AT 5.7 °C ALPHA LINE H2

Colorless fuming liquid at low temperature

Decomposed by water and alcohol

Critical volume: 239 cu cm/mol

Reacts with hydrogen at 1200 °C

For more Other Experimental Properties (Complete) data for BORON TRICHLORIDE (10 total), please visit the HSDB record page.

Section 10. Stability and Reactivity

Fumes in air, including moisture in air and soil, to form hydrochloric acid [Merck 11th ed. 1989]. Reacts vigorously with water and forms hydrochloric acid fumes and boric acid.

Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of Hydrogen Chloride gas will be created in 0.13 minutes. Experimental details are in the following: "Development of the Table of Initial Isolation and Protective Distances for the 2008 Emergency Response Guidebook", ANL/DIS-09-2, D.F. Brown, H.M. Hartmann, W.A. Freeman, and W.D. Haney, Argonne National Laboratory, Argonne, Illinois, June 2009.

Halogenating Agents

Water-Reactive

Air-Reactive

BORON TRICHLORIDE vigorously attacks elastomers and packing materials. Contact with Viton, Tygon, Saran and natural and synthetic rubbers is not recommended. Highly corrosive to most metals in the presence of moisture. Reacts energetically with nitrogen dioxide/dinitrogen tetraoxide, aniline, phosphine, triethylsilane, or fat and grease [Mellor 5:132 1946-47]. Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides).

Boron trichloride reacts energetically with nitrogen peroxide, phosphine, or fat and grease.

Oxygen and boron trichloride react vigorously on sparking.

Reacts vigorously /with water/ to liberate heat and forms hydrogen chloride fumes (hydrochloric acid) and boric acid.

Boron trichloride /and/ aniline: in absence of cooling or a diluent, interaction is violent.

For more Hazardous Reactivities and Incompatibilities (Complete) data for BORON TRICHLORIDE (19 total), please visit the HSDB record page.

Section 11. Toxicological Information

The substance can be absorbed into the body by inhalation.

Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing. Symptoms may be delayed.

Pain. Redness. Blisters. Skin burns. ON CONTACT WITH LIQUID: FROSTBITE.

Pain. Redness. Severe deep burns. Loss of vision.

Dermatotoxin - Skin burns.

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

Boron Trichloride

2 mg/kg-day

2 x 10^-2 mg/m^3

PDF Document

Inadequate information to assess carcinogenic potential

PPRTV Current

LC50 (rat) = 2,541 ppm/1hr

LC50 Rat (male) inhalation 2,541 ppm/1 hr

LC50 Rat (female) inhalation 21.1 g/cu m/1 hr

ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.

In acute poisonings, if a large amount has been ingested and the patient is seen within one hour of exposure, gastrointestinal decontamination should be considered ... .It is important to keep in mind that vomiting and diarrhea are common, and severe poisoning may be associated with seizures. Therefore induction of emesis by syrup of ipecac is probably contraindicated in these exposures. Catharsis is not indicated if diarrhea is present. /Boric acid and Borates/

If ingestion of borate has been massive (several grams), or has extended over several days, administer intravenous glucose and electrolyte solutions to sustain urinary excretion of borate. Monitor fluid balance and serum electrolytes (including bicarbonate capacity ) regularly. Monitor cardiac status by ECG. Test the urine for proteins and cells to detect renal injury, and monitor serum concentration of borate. Metabolic acidosis may be treated with sodium bicarbonate. If shock develops, it may be necessary to infuse plasma or whole blood. Administer oxygen continuously. If oliguria (less than 25 to 30 mL urine per hour) occurs, intravenous fluids must be slowed or stopped to avoid overloading the circulation. Such patients should be referred to a center capable of providing intensive care for critically ill patients. /Boric acid and Borates/

If renal failure occurs, hemodialysis may be necessary to maintain fluid balance and normal extracellular fluid composition. Hemodialysis has had limited success in enhancing clearance of borates. Peritoneal dialysis has been performed in borate poisoning and is felt to be as effective as, and safer than, exchange transfusion in removing borate. No large study has been done, but it is still used somewhat less frequently than hemodialysis. /Boric acid and Borates/

For more Antidote and Emergency Treatment (Complete) data for BORON TRICHLORIDE (12 total), please visit the HSDB record page.

No specific considerations are needed for boric acid or borates except for general health and liver and kidney function. /Boric acid and borates/

/SIGNS AND SYMPTOMS/ Inhalation of boron trichloride vapor results in edema and irritation of upper respiratory tract.

/SIGNS AND SYMPTOMS/ Classified as a corrosive liquid to the skin and mucous surfaces due to its rapid hydrolysis to hydrochloric acid (and boric acid) by moisture.

/SIGNS AND SYMPTOMS/ EFFECTS OF SHORT-TERM EXPOSURE: ...Inhalation of the gas may cause lung edema. Rapid evaporation of the liquid may cause frostbite. Exposure at high levels may result in death. The effects may be delayed. Medical observation is indicated.

/SIGNS AND SYMPTOMS/ /Effects on exposure by/ inhalation /may include/ sore throat, cough, burning sensation, shortness of breath, and labored breathing.

For more Human Toxicity Excerpts (Complete) data for BORON TRICHLORIDE (7 total), please visit the HSDB record page.

/LABORATORY ANIMALS: Subchronic or Prechronic Exposure/ Exposure to 100 ppm has proved fatal to certain laboratory animals; symptoms included pulmonary lesions and irritation of the mucous membranes.

1.60e+05

2.30e+06

2.10e+01

8.80e+01

4.20e+01

4.00e+00

2.00e+00

2.00e-02

Volatile

4.70e+05

6.90e+06

6.30e+01

2.60e+02

Section 12. Ecological Information

1.60e+05

2.30e+06

2.10e+01

8.80e+01

4.20e+01

4.00e+00

2.00e+00

2.00e-02

Volatile

4.70e+05

6.90e+06

6.30e+01

2.60e+02

1.30e+02

The chemistry of boron is dominated by its tendency to form stable bonds with electronegative atoms, especially oxygen. Reduced boron compounds (halides, hydrides, alkyls and aryls) tend to oxidize and hydrolyze readily, and would be expected to be converted into various boron-oxide compounds in the environment. Inorganic boron compounds are nonvolatile and would not be expected to volatilize from moist or dry soil surfaces. (SRC)

AQUATIC FATE: Very easily hydrolyzed

According to the 2006 TSCA Inventory Update Reporting data, the number of persons reasonably likely to be exposed in the industrial manufacturing, processing, and use of boron trichloride is 1 to 99; the data may be greatly underestimated(1).

NIOSH (NOES Survey 1981-1983) has statistically estimated that 1,125 workers (613 of these are female) are potentially exposed to boron trichloride(1). Occupational exposure to boron trichloride may occur through inhalation and dermal contact with this compound at workplaces where boron trichloride is produced or used(SRC).

Industrial exposures ... occur from release ... into the worker atmosphere as well as from production & handling ... /Boron halides/

Section 13. Disposal Considerations

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal and plant life; and conformance with environmental and public health regulations.

Attach an appropriate control valve provided with a trap or check valve and a long piece of flexible hose connected to the control valve outlet. Discharge the gas at a moderate rate into an adequate amount of about 15% aqueous sodium hydroxide or other alkali in a suitable container. When the gas has been discharged, close the valve and transport to neutralization plant for disposal.

Section 14. Transport Information

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY. /Boron trichloride (when spilled on land)/

Table: Table of Isolation and Protective Action Distances for Boron trichloride (when spilled on land) [Table#1058]

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY. /Boron trichloride (when spilled in water)/

Table: Table of Isolation and Protective Action Distances for Boron trichloride (when spilled in water) [Table#1059]

/GUIDE 125: GASES - CORROSIVE/ Health: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.

/GUIDE 125: GASES - CORROSIVE/ Fire or Explosion: Some may burn, but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.

For more DOT Emergency Guidelines (Complete) data for BORON TRICHLORIDE (10 total), please visit the HSDB record page.

UN 1741; BORON TRICHLORIDE

IMO 2.2; BORON TRICHLORIDE

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.

Poison Gas Corrosive

Do not transport with food and feedstuffs.

Symbol: T+; R: 14-26/28-34; S: (1/2)-9-26-28-36/37/39-45

UN Hazard Class: 2.3; UN Subsidiary Risks: 8

Source: PubChem CID 25135 (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 09:18:36.
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.