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TRIMETHYLAMINE (40% aqueous solution) ICSC: 1484
Date of Peer Review: May 2003

N,N-Dimethylmethanamine
TMA
CAS # 75-50-3 C3H9N / (CH3)3N
RTECS # PA0350000 Molecular mass: 59.1
UN # 1297
EC # 612-001-01-6
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking.
Water in large amounts, alcohol-resistant foam, dry powder, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
AVOID ALL CONTACT!

Inhalation Burning sensation. Cough. Headache. Sore throat. Laboured breathing. Shortness of breath.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin Redness. Pain. Skin burns.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain. Blurred vision. Severe deep burns.
Face shield, or 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 Abdominal pain. Burning sensation. Shock or collapse.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. Remove all ignition sources. Remove vapour with fine water spray. Personal protection: complete protective clothing including self-contained breathing apparatus.
Do not transport with food and feedstuffs.
EU Classification
Symbol: F+, C
R: 12-20/22-34
S: (1/2-)-3-16-26-29-36/37/39-45
Note: [B]
UN Classification
UN Hazard Class: 3
UN Subsidiary Risks: 8
UN Pack Group: I
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1279-I
NFPA Code: H3; F4; R0
Fireproof. Well closed. Separated from strong acids, oxidants, aluminium, copper, zinc and their alloys, and mercury.
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 IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


TRIMETHYLAMINE (40% aqueous solution) ICSC: 1484
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS SOLUTION IN WATER, WITH PUNGENT ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible.

CHEMICAL DANGERS:
The substance is a medium strong base. Reacts violently with mercury and oxidants causing fire and explosion hazard. Attacks metals such as aluminium, copper, zinc, tin, and their alloys.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 ppm as TWA, 15 ppm as STEL; (ACGIH 2004).
MAK: 2 ppm, 4.9 mg/m; Peak limitation category: I(2); Pregnancy risk group: D; (DFG 2004).
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 will on evaporation of this substance at 20C be reached very quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes and the skin. The vapour is severely irritating to the respiratory tract. Corrosive on ingestion.

PHYSICAL PROPERTIES
Boiling point: 30C
Melting point: -3C
Relative density (water = 1): 0.9
Vapour pressure, kPa at 20C: 67
Relative vapour density (air = 1): 2.0
Relative density of the vapour/air-mixture at 20C (air = 1): 1.6
Flash point: -7C
Auto-ignition temperature: 190C
Explosive limits, vol% in air: 2-16.6
Octanol/water partition coefficient as log Pow: -0.3
ENVIRONMENTAL DATA

NOTES
The toxicological data apply to solutions containing over 15% of trimethylamine. See ICSC 0206 Trimethylamine gas in a cylinder.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, EU classification.
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
IPCS, CEC 2004