TRIMETHYLAMINE 0206
October 2002
CAS No: 75-50-3 N,N-Dimethylmethanamine
RTECS No: PA0350000 TMA
UN No: 1083 (anhydrous) (cylinder)
EC No: 612-001-00-9 C3H9N / (CH3)3N
Molecular mass: 59.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Extremely flammable. Gives off irritating NO open flames, NO sparks, and NO Shut off supply; if not possible and no risk
or toxic fumes (or gases) in a fire. smoking. to surroundings, let the fire burn itself out;
in other cases extinguish with powder,
carbon dioxide.
EXPLOSION Gas/air mixtures are explosive. Closed system, ventilation, In case of fire: keep cylinder cool by
explosion-proof electrical equipment and spraying with water. Combat fire from a
lighting. Use non-sparking handtools. sheltered position.
EXPOSURE STRICT HYGIENE!
Inhalation Burning sensation. Cough. Headache. Ventilation, local exhaust, or breathing Fresh air, rest. Half-upright position.
Sore throat. Laboured breathing. protection. Artificial respiration may be needed. Refer
Shortness of breath. Symptoms may be for medical attention.
delayed (see Notes).
Skin ON CONTACT WITH LIQUID: Cold-insulating gloves. Protective clothing. ON FROSTBITE: rinse with plenty of
FROSTBITE. water, do NOT remove clothes. Refer for
medical attention.
Eyes Redness. Pain. Blurred vision. Safety goggles, or eye protection in First rinse with plenty of water for several
combination with breathing protection. minutes (remove contact lenses if easily
possible), then take to a doctor.
Ingestion Do not eat, drink, or smoke during work.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. EU classification
Remove all ignition sources. NEVER direct water jet on F+ Symbol
liquid. Remove vapour with fine water spray. (Extra personal Xn Symbol
protection: complete protective clothing including R: 12-20-37/38-41
self-contained breathing apparatus.) S: (2-)16-26-39
UN classification
UN Hazard Class: 2.1
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1083 Fireproof. Cool.
NFPA Code: H3; F4; R0.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2006
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0206 TRIMETHYLAMINE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS COMPRESSED LIQUEFIED GAS, WITH The substance can be absorbed into the body by inhalation.
CHARACTERISTIC ODOUR.
Inhalation risk
Physical dangers On loss of containment, a harmful concentration of this gas in the air will
The gas is heavier than air and may travel along the ground; distant be reached very quickly.
ignition possible.
Effects of short-term exposure
Chemical dangers The substance is severely irritating to the eyes and the respiratory tract.
The substance decomposes on burning producing toxic fumes including Rapid evaporation of the liquid may cause frostbite. Inhalation of the
nitrogen oxides. The solution in water is a strong base, it reacts violently substance may cause lung oedema (see Notes). The effects may be
with acid and is corrosive. Reacts violently with oxidants, ethylene oxide. delayed. Medical observation is indicated.
Attacks metal such as copper, zinc, aluminium, tin, and their alloys.
Occupational exposure limits
TLV: 5 ppm (as TWA); 15 ppm (as STEL); (ACGIH 2002).
MAK: 2 ppm 4.9 mg/m3 Peak limitation category: I(2) Pregnancy risk
group: C (DFG 2006).
PHYSICAL PROPERTIES
Boiling point: 3/C Relative vapour density (air = 1): 2
Melting point: -117/C Flash point: Flammable Gas
Relative density (water = 1): 0.6 (liquid) Auto-ignition temperature: 190/C
Solubility in water: very good Explosive limits, vol% in air: 2.0-11.6
Vapour pressure, kPa at 20/C: 187 Octanol/water partition coefficient as log Pow: 0.2
ENVIRONMENTAL DATA
NOTES
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and
medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Card has been partly updated in October 2006: see sections Occupational Exposure Limits.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
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