DIMETHYLAMINE (aqueous solution) 1485
May 2003
Methanamine, N-methyl (aqueous solution)
CAS No: 124-40-3
DMA (aqueous solution)
RTECS No: IP8750000
(CH3)2NH / C2H7N
UN No: 1160
Molecular mass: 45.1
EC No: 612-001-01-6
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Highly flammable. Gives off NO open flames, NO sparks, and Water in large amounts,
FIRE
irritating or toxic fumes (or gases) NO smoking. alcohol-resistant foam, dry powder,
in a fire. carbon dioxide.
Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc.,
EXPLOSION
explosion-proof electrical equipment cool by spraying with water.
and lighting. Use non-sparking
handtools.
EXPOSURE AVOID ALL CONTACT!
Burning sensation. Cough. Ventilation, local exhaust, or Fresh air, rest. Half-upright position.
Inhalation
Headache. Sore throat. Laboured breathing protection. Artificial respiration may be needed.
breathing. Shortness of breath. Refer for medical attention.
Redness. Pain. Serious skin burns. Protective gloves. Protective Remove contaminated clothes.
Skin
clothing. Rinse skin with plenty of water or
shower. Refer for medical attention.
Redness. Pain. Blurred vision. Face shield or eye protection in First rinse with plenty of water for
Eyes
Severe deep burns. combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Abdominal pain. Burning Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
Ingestion
sensation. Shock or collapse. work. vomiting. Give plenty of water to
drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Remove all ignition sources. F+ Symbol Do not transport with food and
Cover the spilled material with foam. Collect leaking C Symbol feedstuffs.
liquid in covered containers. Absorb remaining liquid R: 12-20/22-34
in sand or inert absorbent and remove to safe place. S: (1/2-)3-16-26-29-36/37/39-45
Do NOT wash away into sewer. Do NOT let this Note: B
chemical enter the environment. Personal protection: UN Hazard Class: 3
filter respirator for organic gases and vapours. UN Subsidiary Risks: 8
UN Pack Group: II
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30GFC-II Fireproof. Cool. Separated from strong acids, oxidants, aluminium, copper
NFPA Code: H3; F4; R0 and its alloys, mercury, zinc, food and feedstuffs. Well closed.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2005
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1485 DIMETHYLAMINE (aqueous solution)
IMPORTANT DATA
Physical State; Appearance Routes of exposure
SOLUTION IN WATER, WITH PUNGENT ODOUR. The substance can be absorbed into the body by inhalation of
its aerosol and by ingestion.
Physical dangers
Inhalation risk
The vapour is heavier than air and may travel along the ground;
distant ignition possible. A harmful contamination of the air will on evaporation of this
substance at 20/C be reached very quickly.
Chemical dangers
Effects of short-term exposure
The solution in water is a strong base, it reacts violently with acid
and is corrosive. Reacts violently with strong oxidants and The substance is corrosive to the eyes and the skin. The vapour
mercury causing fire and explosion hazard. Attacks aluminium, is severely irritating to the respiratory tract. Corrosive on
copper, zinc alloys, galvanized surfaces and plastic. ingestion.
Occupational exposure limits
TLV: 5 ppm as TWA; 15 ppm as STEL; A4 (not classifiable as a
human carcinogen); (ACGIH 2004).
EU OEL: 2 ppm, 3.8 mg/m3, as TWA; 5 ppm, 9.4 mg/m3, as
STEL; (EU 1998).
PHYSICAL PROPERTIES
Boiling point: 51/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.14
Melting point: -37/C Flash point: -18/C
Relative density (water = 1): 0.9 Auto-ignition temperature: 400/C
Vapour pressure, kPa at 20/C: 26.3 Explosive limits, vol% in air: 2.8-14.4
Relative vapour density (air = 1): 1.6 Octanol/water partition coefficient as log Pow: -0.2
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms.
NOTES
Toxicity information applies to aqueous solutions containing dimethylamine over 15%, and physical properties will vary according to
concentration. Physical properties of this card are for the 40% solution.
See ICSC 0260 Dimethylamine gas in a cylinder.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, EU classification.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2005
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