1,1-DIMETHYLHYDRAZINE 0147
April 1994
CAS No: 57-14-7 Dimethylhydrazine
N,N-Dimethylhydrazine
RTECS No: MV2450000
C2H8N2 / NH2-N(CH3)2
UN No: 1163
Molecular mass: 60.1
EC No: 007-012-00-5
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Highly flammable. Gives off irritating NO open flames, NO sparks, and NO Powder, alcohol-resistant foam,
or toxic fumes (or gases) in a fire. smoking. NO contact with oxidants. water in large amounts, carbon
dioxide.
EXPLOSION Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc., cool
Risk of fire and explosion. explosion-proof electrical equipment by spraying with water.
and lighting. Do NOT use
compressed air for filling,
discharging, or handling.
EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A
DOCTOR!
Inhalation Burning sensation. Sore throat. Ventilation, local exhaust, or breathing Fresh air, rest. Half-upright position.
Cough. Headache. Laboured protection. Refer for medical attention.
breathing. Nausea. Abdominal
cramps. Vomiting.
Skin MAY BE ABSORBED! Skin burns. Protective gloves. Protective clothing. First rinse with plenty of water, then
Pain. (Further see Inhalation). remove contaminated clothes and
rinse again. Refer for medical
attention.
Eyes Pain. Blurred vision. Severe deep Face shield or eye protection in First rinse with plenty of water for
burns. Permanent loss of vision. combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take to
a doctor.
Ingestion Convulsions. (Further see Do not eat, drink, or smoke during Rinse mouth. Rest. Refer for medical
Inhalation). work. Wash hands before eating. attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Collect F Symbol Unbreakable packaging; put
leaking and spilled liquid in sealable non-plastic T Symbol breakable packaging into closed
containers as far as possible. Absorb remaining liquid N Symbol unbreakable container.
in sand or inert absorbent and remove to safe place. R: 45-11-23/25-34-51/53
Do NOT absorb in saw-dust or other combustible S: 53-45-61
absorbents. Do NOT let this chemical enter the Note: E
environment. Personal protection: complete protective UN Hazard Class: 6.1
clothing including self-contained breathing apparatus. UN Subsidiary Risks: 3 and 8
UN Pack Group: I
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GTFC-I Fireproof. Provision to contain effluent from fire extinguishing. Separated from
NFPA Code: H 3; F 3; R 1 strong oxidants, strong acids. Keep in the dark. Do not store in copper or in
alloys high in copper or in plastic.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2005
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0147 1,1-DIMETHYLHYDRAZINE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS FUMING AND HYGROSCOPIC LIQUID, WITH The substance can be absorbed into the body by inhalation,
PUNGENT ODOUR. TURNS YELLOW ON EXPOSURE TO AIR. through the skin and by ingestion.
Physical dangers Inhalation risk
The vapour is heavier than air and may travel along the ground; A harmful contamination of the air can be reached very quickly on
distant ignition possible. evaporation of this substance at 20/C.
Chemical dangers Effects of short-term exposure
The substance may ignite spontaneously on contact with air. On The substance is corrosive to the eyes, the skin and the
combustion, forms toxic and/or flammable fumes including respiratory tract. Inhalation of the vapour may cause lung oedema
nitrogen oxides, hydrogen, ammonia, dimethylamine and (see Notes). The substance may cause effects on the central
hydrazoic acid. The substance is a strong reducing agent and nervous system and liver, resulting in respiratory failure and liver
reacts violently with oxidants like nitrogen tetroxide, hydrogen impairment. Exposure to the vapour may result in death.
peroxide and nitric acid. The substance is a strong base, it reacts
violently with acid and is corrosive. Reacts with oxygen causing Effects of long-term or repeated exposure
fire and explosion hazard. Attacks plastic. The substance may have effects on the nervous system, liver and
blood. This substance is possibly carcinogenic to humans.
Occupational exposure limits
TLV: 0.01 ppm as TWA; (skin); A3 (confirmed animal carcinogen
with unknown relevance to humans); (ACGIH 2004).
MAK: skin absorption (H); sensitization of skin (Sh); Carcinogen
category: 2; (DFG 2004).
PHYSICAL PROPERTIES
Boiling point: 63/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.2
Melting point: -58/C Flash point: -15/C c.c.
Relative density (water = 1): 0.8 Auto-ignition temperature: 249/C
Solubility in water: very good Explosive limits, vol% in air: 2-95
Vapour pressure, kPa at 20/C: 16.4 Octanol/water partition coefficient as log Pow: -1.9
Relative vapour density (air = 1): 2.1
ENVIRONMENTAL DATA
This substance may be hazardous to the environment; special attention should be given to fish.
NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
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 are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
The odour warning when the exposure limit value is exceeded is insufficient.
Rinse contaminated clothes (fire hazard) with plenty of water.
Aerozine-50 and Dimazine are trade names.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
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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