1,1,1-TRICHLOROETHANE (ICSC)

1,1,1-TRICHLOROETHANE	ICSC: 0079

Date of Peer Review: April 2007

Methyl chloroform
Methyltrichloromethane
alpha-Trichloroethane

CAS #	71-55-6	C₂H₃Cl₃ / CCl₃CH₃
RTECS #	KJ2975000	Molecular mass: 133.4
UN #	2831
EC Annex 1 Index #	602-013-00-2
EC/EINECS #	200-756-3

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible under specific conditions. Heating will cause rise in pressure with risk of bursting. Gives off irritating or toxic fumes (or gases) in a fire. See Notes.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION			In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE		PREVENT GENERATION OF MISTS!
Inhalation	Cough. Sore throat. Headache. Dizziness. Drowsiness. Nausea. Ataxia. Unconsciousness.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin	Dry skin. Redness.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Nausea. Vomiting. Abdominal pain. Diarrhoea. (Further see Inhalation).	Do not eat, drink, or smoke during work.	Do NOT induce vomiting. Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Personal protection: self-contained breathing apparatus. Ventilation. Collect leaking and spilled liquid in sealable, suitable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment.

Do not transport with food and feedstuffs. Note: F
EU Classification
Symbol: Xn, N
R: 20-59
S: (2-)24/25-59-61
UN Classification
UN Hazard Class: 6.1
UN Pack Group: III
GHS Classification
Warning
Causes mild skin irritation
Causes eye irritation
May cause drowsiness or dizziness
May cause damage to cardiovascular system if inhaled
Harmful to aquatic life

EMERGENCY RESPONSE

STORAGE

Transport Emergency Card: TEC (R)-61S2831 or 61GTI-III
NFPA Code: H2; F1; R0

Separated from food and feedstuffs and strong oxidants, aluminium, manganese and zinc. Cool. Dry. Store in an area without drain or sewer access.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities Š IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK

1,1,1-TRICHLOROETHANE

ICSC: 0079

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air.

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and corrosive fumes. Reacts violently with aluminium, manganese and their alloys, alkalis, strong oxidants, acetone and zinc.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 350 ppm as TWA, 450 ppm as STEL; A4 (not classifiable as a human carcinogen); BEI issued (ACGIH 2006).
MAK: 200 ppm, 1100 mg/mł; Peak limitation category: II(1); skin absorption (H); Pregnancy risk group: C; (DFG 2006).

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is mildly irritating to the eyes, the respiratory tract and the skin. The substance may cause effects on the central nervous system , resulting in lowering of consciousness. Exposure at high levels may result in cardiac dysrhythmia.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.

PHYSICAL PROPERTIES

Boiling point: 74°C
Melting point: -30°C
Relative density (water = 1): 1.34
Solubility in water: (poor)
Vapour pressure, kPa at 20°C: 13.3
Relative vapour density (air = 1): 4.6

Flash point: see Notes
Auto-ignition temperature: 537°C
Explosive limits, vol% in air: 8-16
Octanol/water partition coefficient as log Pow: 2.49

ENVIRONMENTAL DATA

The substance is harmful to aquatic organisms.

NOTES

Combustible vapour/air mixtures difficult to ignite, may be developed under certain conditions. The substance burns only in excess oxygen or if a strong source of ignition is present. Do NOT use in the vicinity of a fire or a hot surface, or during welding. Use of alcoholic beverages enhances the harmful effect. Depending on the degree of exposure, periodic medical examination is suggested. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.

ADDITIONAL INFORMATION

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

Š IPCS, CEC 2005

    See Also:
       Toxicological Abbreviations
       Trichloroethane, 1,1,1- (EHC 136, 1992)
       Trichloroethane, 1,1,1- (WHO Food Additives Series 16)
       Trichloroethane, 1,1,1- (PIM 540)
       Trichloroethane, 1,1,1- (IARC Summary & Evaluation, Volume 71, 1999)