DIMETHYLAMINE 0260
May 2003
Methanamine, N-methyl
CAS No: 124-40-3
DMA
RTECS No: IP8750000
(cylinder)
UN No: 1032
(CH3)2NH / C2H7N
EC No: 612-001-00-9
Molecular mass: 45.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Extremely flammable. Gives off NO open flames, NO sparks, and Shut off supply; if not possible and
FIRE
irritating or toxic fumes (or gases) NO smoking. no risk to surroundings, let the fire
in a fire. burn itself out; in other cases
extinguish with water spray,
alcohol-resistant foam, dry powder,
carbon dioxide.
Gas/air mixtures are explosive. Closed system, ventilation, In case of fire: keep cylinder cool by
EXPLOSION
explosion-proof electrical equipment spraying with water. Combat fire
and lighting. Use non-sparking from a sheltered position.
handtools.
EXPOSURE STRICT HYGIENE!
Burning sensation. Cough. Ventilation, local exhaust, or Fresh air, rest. Half-upright position.
Inhalation
Headache. Laboured breathing. breathing protection. Artificial respiration may be needed.
Shortness of breath. Sore throat. Refer for medical attention.
Symptoms may be delayed (see
Notes).
ON CONTACT WITH LIQUID: Cold-insulating gloves. Protective ON FROSTBITE: rinse with plenty
Skin
FROSTBITE. clothing. of water, do NOT remove clothes.
Refer for medical attention.
Redness. Pain. Blurred vision. Safety goggles, or eye protection in First rinse with plenty of water for
Eyes
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during
Ingestion
work.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! F+ Symbol
Ventilation. Remove all ignition sources. NEVER Xn Symbol
direct water jet on liquid. Remove gas with fine R: 12-20-37/38-41
water spray. Do NOT let this chemical enter the S: (2-)16-26-39
environment. (Extra personal protection: complete UN Hazard Class: 2.1
protective clothing including self-contained
breathing apparatus.)
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-20S1032 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
International 漏 IPCS 2002
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0260 DIMETHYLAMINE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS COMPRESSED LIQUEFIED GAS, WITH The substance can be absorbed into the body by inhalation.
PUNGENT ODOUR.
Inhalation risk
Physical dangers On loss of containment, a harmful concentration of this gas in
The gas is heavier than air and may travel along the ground; the air will be reached very quickly especially in confined
distant ignition possible. spaces.
Chemical dangers Effects of short-term exposure
The substance decomposes on burning producing toxic fumes The substance is severely irritating to the eyes and the
including nitrogen oxides. Reacts violently with strong oxidants respiratory tract. Inhalation of the substance at high levels may
and mercury causing fire and explosion hazard. Attacks copper, cause lung oedema (see Notes). The effects may be delayed.
zinc alloys, aluminium, galvanized surfaces, and plastic. The Medical observation is indicated. Rapid evaporation of the liquid
solution in water is a strong base, it reacts violently with acid may cause frostbite.
and is corrosive, see ICSC 1485 Dimethylamine, aqueous
solution.
Occupational exposure limits
TLV: 5 ppm as TWA; 15 ppm as STEL; A4; (ACGIH 2003).
EU OEL: 2 ppm, 3.8 mg/m3 as TWA; 5 ppm, 9.4 mg/m3 as
STEL; (EU 1998).
PHYSICAL PROPERTIES
Boiling point: 7.0掳C Relative vapour density (air = 1): 1.6
Melting point: -92.2掳C Flash point: Flammable Gas
Relative density (water = 1): 0.7 Auto-ignition temperature: 400掳C
Solubility in water: 354 g/100ml Explosive limits, vol% in air: 2.8-14.4
Vapour pressure, kPa at 25掳C: 203 Octanol/water partition coefficient as log Pow: -0.2
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms.
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.
Do NOT spray water on leaking cylinder (to prevent corrosion of cylinder).
See ICSC 1485 Dimethylamine, aqueous solution.
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
漏IPCS 2002
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