FLINN SCIENTIFIC INC. 

"Your Safer Source for Science Supplies" 

MSDS #: 829.00 
Revision Date: April 2, 2001

Material Safety Data Sheet (MSDS) 
Section 1 — Chemical Product and Company Identification 

1,1,1-Trichloroethane 

Flinn Scientific, Inc. P.O. Box 219 Batavia, IL 60510 (800) 452-1261 
CHEMTREC Emergency Phone Number: (800) 424-9300 

Section 2 — Composition, Information on Ingredients 

1,1,1-Trichloroethane 
Synonym: methyl chloroform 

CAS#: 71-55-6 

Section 3 — Hazards Identification 

Colorless liquid. Chloroform - like odor. 
FLINN AT-A-GLANCE 

Severe body tissue irritant. Chronic exposure may result in dermatitis. Avoid all body tissue contact. 
Health-0 
Flammability-1 
Reactivity-2 
Exposure-1 
Storage-0 

0 is low hazard, 3 is high hazard 

Section 4 — First Aid Measures 

Call a physician, seek medical attention for further treatment, observation and support after first aid.
Inhalation: Remove to fresh air at once. If breathing has stopped give artificial respiration immediately.
Eye: Immediately flush with fresh water for 15 minutes.
External: Wash continuously with fresh water for 15 minutes.
Internal: Induce vomiting. After vomiting, give mixture of 2 Tbs. of activated charcoal mixed with one cup of water. Call 
a
physician or poison control at once.


Section 5 — Fire Fighting Measures 
Combustible liquid. NFPA CODE 
When heated to decomposition, emits toxic chloride fumes. H-2 
Explosion Limits: UEL: 15%, LEL: 7.5%; Autoignition Temperature: 998 F F-1 
Fire Fighting Instructions: Use triclass, dry chemical fire extinguisher. Firefighters should wear PPE R-0 
and SCBA with full facepiece operated in positive pressure mode. 

Section 6 — Accidental Release Measures 

Restrict unprotected personnel from area. Remove all ignition sources and ventilate area. Contain spill with sand and absorbent 
material; deposit in sealed bag or container. See Sections 8 and 13 for further information. 

Section 7 — Handling and Storage 

Flinn Suggested Chemical Storage Pattern: Organic #4. Store with ethers, ketones, halogenated hydrocarbons and ethylene oxide. 
Use and dispense in a hood. 

Section 8 — Exposure Controls , Personal Protection 

Avoid contact with eyes, skin and clothing. Wear chemical splash goggles, chemical-resistant gloves and chemical-resistant apron. 
Use ventilation to keep airborne concentrations below exposure limits. Always wear a NIOSH-approved respirator with proper 
cartridges or a positive pressure, air-supplied respirator when handling this material in emergency situations (spill or fire). 
Exposure guidelines: TWA 350 ppm, STEL 450 ppm (OSHA, ACGIH) 

© 2002 Flinn Scientific, Inc. All Rights Reserved. 
PAGE 1 OF 2 


FLINN SCIENTIFIC INC. 1,1,1-Trichloroethane 
"Your Safer Source for Science Supplies" 

MSDS #: 829.00 
Material Safety Data Sheet (MSDS) Revision Date: April 2, 2001 


Section 9 — Physical and Chemical Properties 

Colorless liquid. Chloroform - like odor. Specific Gravity: 1.325 
Solubility: Alcohol, not water. Melting Point: -35 C 
Formula: CH3CCl3 Boiling Point: 74-76 C 
Formula Weight: 133.41 Vapor Pressure: 100 mm (20 C) 

Vapor Density: 4.6 

Section 10 — Stability and Reactivity 

Avoid strong oxidizers, aluminum, zinc, magnesium, and strong bases. Reacts violently with potassium, sodium, acetone, nitrates,
and oxygen.
Shelf Life: Indefinite.


Section 11 — Toxicological Information 

Acute effects: Harmful liquid, severe irritant ORL-RAT LD50: 10300 mg/kg 
Chronic effects: Dermatitis, possible mutagen IHL-RAT LC50: 18000 ppm/4H 
Target organs: Liver, kidneys, central nervous system SKN-RBT LD50: >5 gm/kg 

N.A. = Not available, not all health aspects of this substance have been fully investigated. 
Section 12 — Ecological Information 

Data not yet available. 

Section 13 — Disposal Considerations 

Please consult with state and local regulations.
Flinn Suggested Disposal Method #27j is one option.


Section 14 — Transport Information 

Shipping Name: 1,1,1-Trichloroethane 
Hazard Class: 6.1, Keep away from food. 
UN Number: UN2831 

N/A = Not applicable 

Section 15 — Regulatory Information 

TSCA-listed, EINECS-listed (200-756-3), RCRA code U226. 

Section 16 — Other Information 

Consult your copy of the Flinn Scientific Catalog/Reference Manual for additional information about laboratory chemicals. 
This Material Safety Data Sheet (MSDS) is for guidance and is based upon information and tests believed to be reliable. Flinn 
Scientific Inc. makes no guarantee of the accuracy or completeness of the data and shall not be liable for any damages relating 
thereto. The data is offered solely for your consideration, investigation, and verification. Flinn Scientific Inc. assumes no legal 
responsibility for use or reliance upon this data. 

FLINN SCIENTIFIC INC. 

"Your Safer Source for Science Supplies" 

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flinn@flinnsci.com www.flinnsci.com 

P.O. Box 219 Batavia IL 60510 
(800) 452-1261 Fax (866) 452-1436 
PAGE 2 OF 2

© 2002 Flinn Scientific, Inc. All Rights Reserved.