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Chemical Datasheet
BENZOTRICHLORIDE |
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Chemical Identifiers
CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
- 98-07-7
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none
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NIOSH Pocket Guide |
International Chem Safety Card |
none
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NFPA 704
General Description
A clear colorless to yellowish colored liquid with a penetrating odor. Denser than water and vapors are heavier than air. May be toxic by inhalation or ingestion. Burns skin, eyes, and mucous membranes. Insoluble in water. Used to make dyes and other chemicals.
Hazards
Reactivity Alerts
none
Air & Water Reactions
Hydrolyzes in the presence of moisture. The reaction is rather slow due to low solubility in water.
Fire Hazard
This material may react violently with water. Fire may produce irritating or poisonous gases. Flammable/poisonous gases may accumulate in tanks and hopper cars. Materials may ignite combustibles (wood, paper, oil, etc.). Produces toxic and corrosive fumes when it reacts with water or steam. Similar to hydrochloric acid; material will react with water or steam to produce toxic and corrosive fumes. Hydrolyzes in presence of water forming benzoic and hydrochloric acids. (EPA, 1998)
Health Hazard
Toxic by inhalation; fumes are highly irritating to skin and mucous membranes. May cause death or permanent injury after very short exposure to small quantities. A suspected carcinogen. (EPA, 1998)
Reactivity Profile
BENZOTRICHLORIDE hydrolyzes in the presence of moisture. It reacts with water, lime, ammonia, strong alkalis, organic amines, chlorates and acids. (NTP, 1992)
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
No information available.
Response Recommendations
Isolation and Evacuation
Excerpt from 156
[Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
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 car or tank truck 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, 2020)
Firefighting
Wear self-contained breathing apparatus and full protective clothing. Normal fire fighting procedures may be used.
Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog, or foam. Cool containers that are exposed to flames with water from the side until well after the fire is out. (EPA, 1998)
Non-Fire Response
Excerpt from 156
[Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor-suppressing foam may be used to reduce vapors. FOR CHLOROSILANES, use AFFF alcohol-resistant medium-expansion foam to reduce vapors. DO NOT GET WATER on spilled substance or inside containers. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Prevent entry into waterways, sewers, basements or confined areas.
SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. (ERG, 2020)
Protective Clothing
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)
DuPont Tychem® Suit Fabrics
Normalized Breakthrough Times (in Minutes)
Chemical |
CAS Number |
State |
QS |
QC |
SL |
C3 |
TF |
TP |
RC |
TK |
RF |
Benzo trichloride |
98-07-7 |
Liquid |
|
|
|
>480 |
|
|
|
|
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Special Warning from DuPont: Tychem® and Tyvek® fabrics should not be
used around heat, flames, sparks or in potentially flammable or
explosive environments. Only...
(DuPont, 2023)
First Aid
Warning: Benzotrichloride is a strong irritant. Direct contact may result in severe dermal or corneal burns.
Signs and Symptoms of Benzotrichloride Exposure: Signs and symptoms of acute exposure to benzotrichloride may include strong irritation or burning of the eyes, skin, and respiratory tract. It may cause esophageal or gastrointestinal tract irritation if ingested.
Emergency Life-Support Procedures: Acute exposure to benzotrichloride 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 benzotrichloride.
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 100% humidified oxygen or other respiratory support.
3. Obtain authorization and/or further instructions from the local hospital for 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 benzotrichloride.
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 100% humidified oxygen or other respiratory support.
3. Remove and isolate 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 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 100% humidified oxygen or other respiratory support to all victims.
2. DO NOT induce vomiting or attempt to neutralize!
3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
4. 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.
5. Rush to a health care facility. (EPA, 1998)
Physical Properties
Flash Point:
260°F
(EPA, 1998)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
23°F
(EPA, 1998)
Vapor Pressure:
1 to 10 mmHg
at 114.44 to 189.68 °F
(EPA, 1998)
Vapor Density (Relative to Air):
6.77
(EPA, 1998)
- Heavier than air; will sink
Specific Gravity:
1.3756
at 68°F
(EPA, 1998)
- Denser than water; will sink
Boiling Point:
429.4°F
at 760 mmHg
(EPA, 1998)
Molecular Weight:
195.48
(EPA, 1998)
Water Solubility:
Decomposes
(NTP, 1992)
Ionization Energy/Potential: data unavailable
IDLH: data unavailable
AEGLs (Acute Exposure Guideline Levels)
No AEGL information available.
ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.
PACs (Protective Action Criteria)
Chemical |
PAC-1 |
PAC-2 |
PAC-3 |
Benzyl trichloride; (Trichloromethylbenzene) (98-07-7)
|
0.064 mg/m3 |
0.7 mg/m3 |
5.3 mg/m3 |
(DOE, 2018)
Regulatory Information
EPA Consolidated List of Lists
Regulatory Name |
CAS Number/ 313 Category Code |
EPCRA 302 EHS TPQ |
EPCRA 304 EHS RQ |
CERCLA RQ |
EPCRA 313 TRI |
RCRA Code |
CAA 112(r) RMP TQ |
Benzoic trichloride |
98-07-7 |
100 pounds |
10 pounds |
10 pounds |
313 |
U023 |
|
Benzotrichloride |
98-07-7 |
100 pounds |
10 pounds |
10 pounds |
X |
U023 |
|
(EPA List of Lists, 2022)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.
OSHA Process Safety Management (PSM) Standard List
No regulatory information available.
Alternate Chemical Names
- ALPHA,ALPHA,ALPHA-TRICHLOROTOLUENE
- BENZENE,(TRICHLOROMETHYL)-
- BENZENYL CHLORIDE
- BENZENYL TRICHLORIDE
- BENZOIC TRICHLORIDE
- BENZOTRICHLORIDE
- BENZOTRIFLUORIDE
- BENZYL TRICHLORIDE
- BENZYLIDYNE CHLORIDE
- OMEGA,OMEGA,OMEGA- TRICHLOROTOLUENE
- OMEGA,OMEGA,OMEGA-TRICHLOROTOLUENE
- PHENYL TRICHOROMETHANE
- PHENYLCHLOROFORM
- PHENYLTRICHLOROMETHANE
- TOLUENE TRICHLORIDE
- TOLUENE, ALPHA,ALPHA,ALPHA-TRICHLORO
- TOLUENE, ALPHA,ALPHA,ALPHA-TRICHLORO-
- 1-(TRICHLOROMETHYL) BENZENE
- (TRICHLOROMETHYL)BENZENE
- 1-(TRICHLOROMETHYL)BENZENE
- TRICHLOROMETHYLBENZENE
- TRICHLOROPHENYLMETHANE