Hill Brothers Chemical Company-1,1,1-Trichloroethane
Material Safety Data Sheet
Revision Issued: 5/12/2000 Supercedes: 4/21/93 First Issued: 2/11/87
Section I - Chemical Product And Company Identification
Product Name: 1,1,1-Trichloroethane
CAS Number: 71-55-6 HBCC MSDS No. CT03000
1675 No. Main Street, Orange, California 92867
Telephone No: 714-998-8800 | Outside Calif: 800-821-7234 | Chemtrec: 800-424-9300
Section II - Composition/Information On Ingredients
Exposure Limits (TWAs) in Air
Chemical Name CAS Number % ACGIH TLV OSHA PEL STEL
1,1,1-Trichloroethane 71-55-6 96 350 ppm 350 ppm N/A
Cyclic Ether N/A 3 25 ppm 25 ppm N/A
Section III - Hazard Identification
Routes of Exposure: Inhalation of vapor, absorption through the skin, ingestion, and skin and eye
contact.
Summary of Acute Health Hazards
Ingestion: May cause irritation of the gastrointestinal tract, with vomiting. If vomiting results in
aspiration, chemical pneumonia could follow. Absorption through the gastro-intestinal tract may produce
symptoms of central nervous system depression, ranging from light-headedness to unconsciousness.
Inhalation: Excessive inhalation may produce symptoms of central nervous system depression, ranging
from light-headedness, nausea and vomiting, to unconsciousness and death.
Skin: Mildly irritating to skin. Skin contact may produce a burning sensation. Prolonged or repeated
contact may cause the skin to become reddened, rough, and dry due to the removal of natural oils, and
may result in dermatitis.
Eyes: An irritant to the eye, causing pain, lacrimation, and general inflammation.
Summary of Chronic Health Hazards: N/A
Effects of Overexposure: Can cause headache, mental confusion, depression, fatigue, loss of appetite,
nausea, vomiting, cough, loss of sense of balance, and visual disturbances. Acts as a narcotic and
depresses the central nervous system.
Medical Conditions Generally Aggravated by Exposure: N/A
Note to Physicians: Caution: Epinephrine or other stimulant may cause ventricular arrhythmia due to
potentiation of endogenous epinephrine. Because rapid absorption may occur through lungs if aspirated
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and cause systemic effects, the decision of whether to induce vomiting or not should be made by an
attending physician. If lavage is performed, suggest endotracheal and/or esophageal control. Danger from
lung aspiration must be weighed against toxicity when considering emptying the stomach. Exposure may
increase "myocardial irritability." Do not administer sympathomimetic drugs unless absolutely necessary.
No specific antidote. Supportive care. Treatment based on judgement of the physician in response to
reactions of the patient.
Section IV - First Aid Measures
Ingestion: NEVER give anything by mouth to an unconscious person. If conscious, have victim drink
several glasses of water, then induce vomiting by having patient tickle the back of the throat with a finger
or by giving syrup of ipecac as directed.If unconscious, keep victim warm, and take immediately to a
hospital. GET MEDICAL ATTENTION.
Inhalation: Remove to fresh air immediately. If not breathing, perform artificial respiration and
administer oxygen. GET MEDICAL ATTENTION.
Skin: Wash contaminated areas with plenty of soap and water. If 1,1,1 Trichloroethane soaks through the
clothing, remove the clothing promptly and wash the skin with soap and water. If irritation persists after
washing. GET MEDICAL ATTENTION.
Eyes: Immediately flush eyes with large amounts of water for at least 15 minutes, holding the lids apart
to ensure flushing of the entire eye surface. If irritation is present after washing. GET MEDICAL
ATTENTION.
Section V - Fire Fighting Measures
Autoignition Temperature: 485oC; (905oF)
Flash Point: N/A
Lower Explosive Limit: 7.5 @ 25oC;
Upper Explosive Limit: 15.0 @ 25oC; 77oF
77oF
Unusual Fire and Explosion Hazards: Nonflammable and nonexplosive under normal conditions of
use. Vapors concentrated in a confined or poorly ventilated area can be ignited upon contact with a high
energy spark, flame, or high intensity source of heat. This can occur at concentrations ranging between
7-15% by volume.
Extinguishing Media: Use water fog.
Special Firefighting Procedures: Use water spray to keep fire-exposed containers cool. Pressure
demand self-contained breathing apparatus should be provided for firefighters in buildings or confined
areas where 1,1,1-Trichloroethane is stored.
Section VI - Accidental Release Measures
Immediately evacuate the area and provide maximum ventilation. Unprotected personnel should be
restricted from areas of spills or leaks until cleanup has been completed. Dike area to contain spill. Take
precautions as necessary to prevent contamination of ground and surface waters. Recover spilled material
on adsorbents, such as sawdust and vermiculite, and sweep into closed containers for disposal.
Section VII - Handling and Storage
Do not use in poorly ventilated or confined areas without proper respiratory protection. Vapors are
heavier than air and will collect in low areas. Store only in closed, properly labeled containers.
1,1,1-Trichloroethane attacks natural rubber; therefore, protective clothing of leather, polyvinyl alcohol,
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or neoprene is recommended. Wash thoroughly after handling.
Section VIII - Exposure Controls/Personal Protection
Respiratory Protection: Use a half or full facepiece organic vapor chemical cartridge or canister
respirator when concentrations exceed permissible limits. Use self-contained breathing apparatus
(SCBA) or full facepiece airline respirator with auxiliary SCBA operated in the pressure-demand mode
for emergencies and for all work performed in storage vessels, poorly ventilated rooms, and other
confined areas. Respirators must be approved by NIOSH or MSHA.
Ventilation: Use local exhaust or dilution ventilation as appropriate to control exposures to below
permissible limits.
Protective Clothing: Protective clothing of leather, polyvinyl alcohol, or neoprene is recommended.
Eye Protection: Splashproof goggles.
Work/Hygienic Practices: Avoid contact with the eyes, skin, and mucous membranes, and avoid
inhalation of the vapors.
Section IX - Physical and Chemical Properties
Physical State: Liquid pH: 6.0 to 7.5
Melting Point/Range: -45癈; -49癋 Boiling Point/Range: 74.1癈; 165癋
Appearance/Color/Odor: Colorless liquid with a mild odor, like chloroform
Solubility in Water: Negligible Vapor Pressure(mmHg): 100 @ 20癈
Specific Gravity(Water=1): 1.32 @ 68癋 Molecular Weight: 133.4
Vapor Density(Air=1): 4.54 % Volatiles: 100%
How to detect this compound : Determination in water by inert gas purge followed by gas
chromatography with halide specific detection (EPA Method 601) or gas chromatography plus mass
spectrometry (EPA Method 624).
Section X - Stability and Reactivity
Stability: Stable Hazardous Polymerization: Will Not Occur
Conditions to Avoid: Do not use cutting or welding torches on empty drums that contained 1,1,1-
Trichloroethane unless properly cleaned.
Materials to Avoid: Liquid oxygen or other strong oxidants mayform explosive mixtures with 1,1,1 -
Trichloroethane. Contact with aluminum may cause possible solvent decomposition. Water - long time
contact can deplete stabilizers followed by slow hydrolysis producing corrosive acid.
Hazardous Decomposition Products: Contact with flames or hot surfaces may cause decomposition to
form hydrogen chloride and possible traces of phosgene.
Section XI - Toxicological Information
1,1,1 Trichloroethane vapor is a narcotic. A number of human fatalities related to industrial exposure in
closed spaces have been reported. A 5-minute exposure to 5000 ppm can be expected to produce marked
lack of coordination and anesthesia. Prolonged exposure at this exposure may cause coma and death.
Exposure to concentrations in excess of 1000 ppm for 15 minutes, or 2000 ppm for 5 minutes, can be
expected to produce a disturbance of equilibrium in the majority of adults. In controlled human
exposures to 500 ppm no effects other than slight, transient eye irritation were noted; at 1000 ppm and
above, mild eye irritation is usually experienced, with possible dizziness. Following exposure, most of
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the compound is eliminated unchanged via the lungs within 48 hours.
Section XII - Ecological Information
WARNING: Contains methyl chloroform (1,1,1-Trichloroethane) a substance which harms public
health and the environment by destroying ozone in the upper atmosphere.
Section XIII - Disposal Considerations
Contaminated sawdust, vermiculite, or porous surfaces must be disposed of in a permitted hazardous
waste management facility. Recovered liquids may be reprocessed, incinerated, or treated in a permitted
hazardous waste management facility. Care must be taken when using or disposing of chemical materials
and/or their containers to prevent environmental contamination.
Section XIV - Transport Information
DOT Proper Shipping Name: 1,1,1-Trichloroethane
DOT Hazard Class/ I.D. No.: 6.1, UN2831, III
DOT Reportable Quantity: 1000 Pounds (454 Kilograms) (134 Gal.)
Section XV - Regulatory Information
NFPA Rating: Health - 2; Fire - 1; Reactivity - 0
0=Insignificant 1=Slight 2=Moderate 3=High 4=Extreme
Carcinogenicity Lists: NTP: No IARC Monograph: No OSHA Regulated: No
Section changed since last revision: III, IV, X
Section 313 Supplier Notification: This product contains the following toxic chemcial(s) subject to the
reporting requirements of SARA TITLE III Section 313 of the Emergency Planning and Community
Right-To Know Act of 1986 and of 40 CFR 372:
CAS # Chemical Name % By Weight
71-55-6 1,1,1-Trichloroethane 96%
Section XVI - Other Information
Synonyms/Common Names: Methyl Chloroform; Chlorothen; Aerothene
Chemical Family/Type: Halogenated Hydrocarbons
IMPORTANT! Read this MSDS before use or disposal of this product. Pass along the information to
employees and any other persons who could be exposed to the product to be sure that they are aware of
the information before use or other exposure. This MSDS has been prepared according to the OSHA
Hazard Communication Standard [29 CFR 1910.1200]. The MSDS information is based on sources
believed to be reliable. However, since data, safety standards, and government regulations are subject to
change and the conditions of handling and use, or misuse are beyond our control, Hill Brothers
Chemical Company makes no warranty, either expressed or implied, with respect to the completeness
or continuing accuracy of the information contained herein and disclaims all liability for reliance
thereon. Also, additional information may be necessary or helpful for specific conditions and
circumstances of use. It is the user's responsibility to determine the suitability of this product and to
evaluate risks prior to use, and then to exercise appropriate precautions for protection of employees and
others.
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