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Name:	Benzotrichloride
CAS No:	98-07-7

PRODUCT DESCRIPTION

【Name】: Benzotrichloride

【CAS Registry number】: 98-07-7

【Synonyms】: 1-(trichloromethyl)benzene
alpha,alpha,alpha-trichlorotoluene
benzenyl trichloride
Benzoic Trichloride
Benzotrichloride? benzylidyne chloride
Benzylidyne trichloride
benzyl trichloride
Phenyl chloroform
phenyl trichloromethane
toluene trichloride
trichloromethylbenzene
Trichlorotoluene
omega,omega,omega-trichlorotoluene
Trichlorotoluene

【EINECS(EC#)】: 202-634-5

【Molecular Formula】: C7H5Cl3 (Products with the same molecular formula)

【Molecular Weight】: 195.47

【Inchi】: InChI=1/C7H5Cl3/c8-7(9,10)6-4-2-1-3-5-6/h1-5H

【InChIKey】: XEMRAKSQROQPBR-UHFFFAOYSA-N

【Canonical SMILES】: C1=CC=C(C=C1)C(Cl)(Cl)Cl

【MOL File】
98-07-7.mol

Chemical and Physical Properties

【Appearance】: colourless liquid

【Density】: 1.3723

【Melting Point】: -7.5℃

【Boiling Point】: 219-223℃

【Vapour】: 0.2 mm Hg ( 20 °C)

【Refractive Index】: 1.557-1.559

【Flash Point】: 97℃

【Water】: HYDROLYSIS

【Solubilities】: HYDROLYSIS

【Color/Form】: CLEAR, COLORLESS TO YELLOWISH LIQUID
OILY LIQUID

【Stability】: Stable, but moisture sensitive. Incompatible with strong oxidizing agents, moisture.

【Spectral properties】: INDEX OF REFRACTION: 1.55789 AT 20 DEG C/D
MAX ABSORPTION (CYCLOHEXANE): 262 NM (LOG E= 2.6); 267 NM (LOG E= 2.7); 274 NM (LOG E= 2.6)
IR: 227 (Sadtler Research Laboratories IR Grating Collection)
UV: 380 (Sadtler Research Laboratories Spectral Collection)
NMR: 90 (Sadtler Research Laboratories Spectral Collection)
MASS: 1081 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63)

【Computed Properties】: Molecular Weight:195.4736 [g/mol]
Molecular Formula:C₇H₅Cl₃
XLogP3:3.7
H-Bond Donor:0
H-Bond Acceptor:0
Rotatable Bond Count:0
Exact Mass:193.945683
MonoIsotopic Mass:193.945683
Topological Polar Surface Area:0
Heavy Atom Count:10
Formal Charge:0
Complexity:99.9
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:1
Feature 3D Ring Count:1
Effective Rotor Count:1
Conformer Sampling RMSD:0.4
CID Conformer Count:1

Safety and Handling

【Hazard Codes】: T:Toxic;

【Risk Statements】: R22;R23;R37/38;R41;R45

【Safety Statements 】: S45;S53

【HazardClass】: 8

【Safety】: Hazard Codes:?T
Risk Statements:45-22-23-37/38-41
R22:Harmful if swallowed.?
R23 :Toxic by inhalation.?
R37:Irritating to respiratory system?
R38:Irritating to skin.?
R41:Risk of serious damage to the eyes.?
R45:May cause cancer.
Safety Statements:53-45
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
S53:Avoid exposure - obtain special instructions before use.

【PackingGroup 】: II

【Sensitive】: Moisture Sensitive

【Skin, Eye, and Respiratory Irritations】: VAPORS HIGHLY IRRITANT TO SKIN, MUCOUS MEMBRANES.

【Cleanup Methods】: PRECAUTIONS FOR "CARCINOGENS": A high-efficiency particulate arrestor (HEPA) or charcoal filters can be used to minimize amt of carcinogen in exhausted air ventilated safety cabinets, lab hoods, glove boxes or animal rooms ... Filter housing that is designed so that used filters can be transferred into plastic bag without contaminating maintenance staff is avail commercially. Filters should be placed in plastic bags immediately after removal ... The plastic bag should be sealed immediately ... The sealed bag should be labelled properly ... Waste liquids ... should be placed or collected in proper containers for disposal. The lid should be secured & the bottles properly labelled. Once filled, bottles should be placed in plastic bag, so that outer surface ... is not contaminated ... The plastic bag should also be sealed & labelled. ... Broken glassware ... should be decontaminated by solvent extraction, by chemical destruction, or in specially designed incinerators. /Chemical Carcinogens/

【Transport】: UN 2226

【Fire Fighting Procedures】: WATER OR FOAM MAY CAUSE FROTHING
If material on fire or involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) 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 to knock-down vapors. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.

【Formulations/Preparations】: Grades: Refined, liquid
Technical (>95%), pure (>98%).

【DOT Emergency Guidelines】: /GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ Fire or Explosion: Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ Health: TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat which will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ Public Safety: CALL Emergency Response Telephone Number ... . As an 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. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate enclosed areas.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ 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.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ Evacuation: ... 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.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ Fire: Note: Most foams will react with the material and release corrosive/toxic gases. Small fires: CO2, dry chemical, dry sand, alcohol-resistant foam. Large fires: Water spray, fog or alcohol-resistant foam. ... Move containers from fire area if you can do it without risk. Use water spray or fog; do not use straight streams. Fire involving tanks or car/trailer loads: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in 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. ... 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 spills: 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.
/GUIDE 156: SUBSTANCES - TOXIC AND/OR CORROSIVE (COMBUSTIBLE/WATER-SENSITIVE)/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.

【Reactivities and Incompatibilities】: Dangerous; ... on contact with acids or acid fumes, they evolve highly toxic chloride fumes. /Chlorides/
Though normally not very reactive, a few haloaryl cmpd /incl trichloromethylbenzene/ if sufficiently activated by other substituents or by specific reaction conditions, may undergo violent reactions.

【Other Preventative Measures】: 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.
If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary.
Personnel protection: Avoid breathing vapors. Keep upwind. ... Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. If contact with the material anticipated, wear appropriate chemical protective clothing.
PRECAUTIONS FOR "CARCINOGENS": Smoking, drinking, eating, storage of food or of food & beverage containers or utensils, & the application of cosmetics should be prohibited in any laboratory. All personnel should remove gloves, if worn, after completion of procedures in which carcinogens have been used. They should ... wash ... hands, preferably using dispensers of liq detergent, & rinse ... thoroughly. Consideration should be given to appropriate methods for cleaning the skin, depending on nature of the contaminant. No standard procedure can be recommended, but the use of organic solvents should be avoided. Safety pipettes should be used for all pipetting. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": In animal laboratory, personnel should remove their outdoor clothes & wear protective suits (preferably disposable, one-piece & close-fitting at ankles & wrists), gloves, hair covering & overshoes. ... Clothing should be changed daily but ... discarded immediately if obvious contamination occurs ... /also,/ workers should shower immediately. In chemical laboratory, gloves & gowns should always be worn ... however, gloves should not be assumed to provide full protection. Carefully fitted masks or respirators may be necessary when working with particulates or gases, & disposable plastic aprons might provide addnl protection. If gowns are of distinctive color, this is a reminder that they should not be worn outside of lab. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": ... Operations connected with synth & purification ... should be carried out under well-ventilated hood. Analytical procedures ... should be carried out with care & vapors evolved during ... procedures should be removed. ... Expert advice should be obtained before existing fume cupboards are used ... & when new fume cupboards are installed. It is desirable that there be means for decreasing the rate of air extraction, so that carcinogenic powders can be handled without ... powder being blown around the hood. Glove boxes should be kept under negative air pressure. Air changes should be adequate, so that concn of vapors of volatile carcinogens will not occur. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": Vertical laminar-flow biological safety cabinets may be used for containment of in vitro procedures ... provided that the exhaust air flow is sufficient to provide an inward air flow at the face opening of the cabinet, & contaminated air plenums that are under positive pressure are leak-tight. Horizontal laminar-flow hoods or safety cabinets, where filtered air is blown across the working area towards the operator, should never be used ... Each cabinet or fume cupboard to be used ... should be tested before work is begun (eg, with fume bomb) & label fixed to it, giving date of test & avg air-flow measured. This test should be repeated periodically & after any structural changes. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": Principles that apply to chem or biochem lab also apply to microbiological & cell-culture labs ... Special consideration should be given to route of admin. ... Safest method of administering volatile carcinogen is by injection of a soln. Admin by topical application, gavage, or intratracheal instillation should be performed under hood. If chem will be exhaled, animals should be kept under hood during this period. Inhalation exposure requires special equipment. ... Unless specifically required, routes of admin other than in the diet should be used. Mixing of carcinogen in diet should be carried out in sealed mixers under fume hood, from which the exhaust is fitted with an efficient particulate filter. Techniques for cleaning mixer & hood should be devised before expt begun. When mixing diets, special protective clothing &, possibly, respirators may be required. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": When ... admin in diet or applied to skin, animals should be kept in cages with solid bottoms & sides & fitted with a filter top. When volatile carcinogens are given, filter tops should not be used. Cages which have been used to house animals that received carcinogens should be decontaminated. Cage-cleaning facilities should be installed in area in which carcinogens are being used, to avoid moving of ... contaminated /cages/. It is difficult to ensure that cages are decontaminated, & monitoring methods are necessary. Situations may exist in which the use of disposable cages should be recommended, depending on type & amt of carcinogen & efficiency with which it can be removed. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": To eliminate risk that ... contamination in lab could build up during conduct of expt, periodic checks should be carried out on lab atmospheres, surfaces, such as walls, floors & benches, & ... interior of fume hoods & airducts. As well as regular monitoring, check must be carried out after cleaning-up of spillage. Sensitive methods are required when testing lab atmospheres. ... Methods ... should ... where possible, be simple & sensitive. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": Rooms in which obvious contamination has occurred, such as spillage, should be decontaminated by lab personnel engaged in expt. Design of expt should ... avoid contamination of permanent equipment. ... Procedures should ensure that maintenance workers are not exposed to carcinogens. ... Particular care should be taken to avoid contamination of drains or ventilation ducts. In cleaning labs, procedures should be used which do not produce aerosols or dispersal of dust, ie, wet mop or vacuum cleaner equipped with high-efficiency particulate filter on exhaust, which are avail commercially, should be used. Sweeping, brushing & use of dry dusters or mops should be prohibited. Grossly contaminated cleaning materials should not be re-used ... If gowns or towels are contaminated, they should not be sent to laundry, but ... decontaminated or burnt, to avoid any hazard to laundry personnel. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": Doors leading into areas where carcinogens are used ... should be marked distinctively with appropriate labels. Access ... limited to persons involved in expt. ... A prominently displayed notice should give the name of the Scientific Investigator or other person who can advise in an emergency & who can inform others (such as firemen) on the handling of carcinogenic substances. /Chemical Carcinogens/

【Protective Equipment and Clothing】: Wear rubber gloves and coveralls. Use of self contained breathing apparatus is recommended.
PRECAUTIONS FOR "CARCINOGENS": ... Dispensers of liq detergent /should be available./ ... Safety pipettes should be used for all pipetting. ... In animal laboratory, personnel should ... wear protective suits (preferably disposable, one-piece & close-fitting at ankles & wrists), gloves, hair covering & overshoes. ... In chemical laboratory, gloves & gowns should always be worn ... however, gloves should not be assumed to provide full protection. Carefully fitted masks or respirators may be necessary when working with particulates or gases, & disposable plastic aprons might provide addnl protection. ... Gowns ... /should be/ of distinctive color, this is a reminder that they are not to be worn outside the laboratory. /Chemical Carcinogens/

【Specification】: ?Benzotrichloride ,its cas register number is 98-07-7.It also can be called alpha,alpha,alpha-Trichlorotoluene ; Benzene, (trichloromethyl)- ; (Trichlorométhyl)benzène and (Trichlormethyl)benzol .
?Benzotrichloride (CAS NO.98-07-7) is hazardous,so the first aid measures and others should be known.Such as: When on the skin: first,should? flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly,Get shoesmedical aid . Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.Then get medical aid soon.While ,it's Inhaled: Remove from exposure and move to fresh air immediately.Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product : Wash mouth out with water,and get medical aid immediately.
In addition, Benzotrichloride (CAS NO.98-07-7) is not compatible with strong oxidizing agents, and not be exposured to moist air or water.And also prevent it to broken down into hazardous decomposition products: hydrogen chloride, phosgene, carbon monoxide, carbon dioxide.

【Octanol/Water Partition Coefficient】: log Kow= 2.92

【Disposal Methods】: Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number U023, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste.
Incineration with flammable solvent added in incinerator with afterburner and alkaline scrubber.
A potential candidate for liquid injection incineration at a temperature range of 650 to 1,600 deg C and a residence time of 0.1 to 2 seconds. A potential candidate for rotary kiln incineration at a temperature range of 820 to 1,600 deg C and residence times of seconds for liquids and gases, and hours for solids.
PRECAUTIONS FOR "CARCINOGENS": There is no universal method of disposal that has been proved satisfactory for all carcinogenic compounds & specific methods of chem destruction ... published have not been tested on all kinds of carcinogen-containing waste. ... summary of avail methods & recommendations ... /given/ must be treated as guide only. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": ... Incineration may be only feasible method for disposal of contaminated laboratory waste from biological expt. However, not all incinerators are suitable for this purpose. The most efficient type ... is probably the gas-fired type, in which a first-stage combustion with a less than stoichiometric air:fuel ratio is followed by a second stage with excess air. Some ... are designed to accept ... aqueous & organic-solvent solutions, otherwise it is necessary ... to absorb soln onto suitable combustible material, such as sawdust. Alternatively, chem destruction may be used, esp when small quantities ... are to be destroyed in laboratory. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": HEPA (high-efficiency particulate arrestor) filters ... can be disposed of by incineration. For spent charcoal filters, the adsorbed material can be stripped off at high temp & carcinogenic wastes generated by this treatment conducted to & burned in an incinerator. ... LIQUID WASTE: ... Disposal should be carried out by incineration at temp that ... ensure complete combustion. SOLID WASTE: Carcasses of lab animals, cage litter & misc solid wastes ... should be disposed of by incineration at temp high enough to ensure destruction of chem carcinogens or their metabolites. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": ... Small quantities of ... some carcinogens can be destroyed using chem reactions ... but no general rules can be given. ... As a general technique ... treatment with sodium dichromate in strong sulfuric acid can be used. The time necessary for destruction ... is seldom known ... but 1-2 days is generally considered sufficient when freshly prepd reagent is used. ... Carcinogens that are easily oxidizable can be destroyed with milder oxidative agents, such as saturated soln of potassium permanganate in acetone, which appears to be a suitable agent for destruction of hydrazines or of compounds containing isolated carbon-carbon double bonds. Concn or 50% aqueous sodium hypochlorite can also be used as an oxidizing agent. /Chemical Carcinogens/
PRECAUTIONS FOR "CARCINOGENS": Carcinogens that are alkylating, arylating or acylating agents per se can be destroyed by reaction with appropriate nucleophiles, such as water, hydroxyl ions, ammonia, thiols & thiosulfate. The reactivity of various alkylating agents varies greatly ... & is also influenced by sol of agent in the reaction medium. To facilitate the complete reaction, it is suggested that the agents be dissolved in ethanol or similar solvents. ... No method should be applied ... until it has been thoroughly tested for its effectiveness & safety on material to be inactivated. For example, in case of destruction of alkylating agents, it is possible to detect residual compounds by reaction with 4(4-nitrobenzyl)-pyridine. /Chemical Carcinogens/

Use and Manufacturing

【Use and Manufacturing】: Methods of Manufacturing

/IT IS/ PRODUCED BY CHLORINATION OF BOILING TOLUENE IN PRESENCE OF LIGHT AND OF 2% PHOSPHORUS TRICHLORIDE.
/Produced by/ a process of chlorinating toluene in a series of cascade reactors exposed to mercury dip lamps to provide continuous production of benzotrichloride with less than or equal to 0.2% benzal chloride in the final product.

U.S. Imports

(1978) 7.98X10+7 G (PRINCIPAL CUSTOMS DISTRICTS)
(1983) 39,595 lb
(1986) 363,433 lb

U.S. Production

(1977) AT LEAST 4.50X10+9 G
(1982) AT LEAST 1.59X10+10 G (EST)

Consumption Patterns

The major part of benzotrichloride production is used in the manufacture of benzoyl chloride ... . Less amt are consumed in the manufacture of benzotrifluoride, as a dyestuff intermediate, and in producing hydroxybenzophenone ultraviolet light stabilizers ... .

【Sampling Procedures】: A personal monitor uses a pump to draw air through a column of Tenax GC in which the cmpd are adsorbed. The cmpd are then desorbed with carbon tetrachloride and an aliquot of the resultant soln is analyzed by gas chromatography.

Environmental Fate and Exposure Potential

【Environmental Fate/Exposure Summary】: TERRESTRIAL FATE: The ultraviolet adsorption spectrum for benzotrichloride in methanol solution shows virtually no absorption above 290 nm(1), therefore direct photolysis on soil surfaces is not expected to occur(SRC). Benzotrichloride hydrolyzes quickly in the presence of moisture forming benzoic acid and hydrochloric acid(2). The hydrolysis rate constant at 25 deg C and pH 7 is reported to be 0.063 1/sec(3), which corresponds to a half-life of 11 sec(SRC). The hydrolysis rate constant at 5.10 deg C was found to be 0.00387 per sec(4), which corresponds to a half-life of 3.0 minutes(SRC). Therefore, leaching, volatilization from moist soil, and biodegradation are not expected to be important fate processes(SRC).
AQUATIC FATE: Benzotrichloride hydrolyzes quickly in the presence of water forming benzoic acid and hydrochloric acid(1). The hydrolysis rate constant at 25 deg C and pH 7 is reported to be 0.063 1/sec(2), which corresponds to a half-life of 11 sec(SRC). The hydrolysis rate constant at 5.10 deg C was found to be 0.00387 per sec(3), which corresponds to a half-life of 3.0 minutes(SRC). Therefore, volatilization, bioconcentration, adsorption to sediment, and photolysis are not expected to be important fate processes(SRC). Limited biodegradation data are available to determine the rate or importance of biodegradation of benzotrichloride in water(SRC); however, using a modified OECD-Screening-Test, DOC removal with benzotrichloride was 95-97% after 3 days(4). However, because of the rapid hydrolysis rate, this biodegradation study is probably for benzoic acid, the hydrolysis product of benzotrichloride(SRC).
ATMOSPHERIC FATE: According to a suggested classification scheme(1), an experimental vapor pressure of 0.4137 mm Hg at 25 deg C(2) indicates that benzotrichloride will exist in the vapor phase in the ambient atmosphere. Vapor-phase benzotrichloride 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 about 45 days(3,SRC). Direct photolysis is not expected to occur in the troposphere due to lack of UV absorption above 290nm(7). Due to the rapid hydrolysis of benzotrichloride in water(4-6), it may hydrolyze in the atmosphere when contacted with moisture(SRC).

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PRODUCT DESCRIPTION

Chemical and Physical Properties

Safety and Handling

Use and Manufacturing

Environmental Fate and Exposure Potential

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