HYDRAZINE 0281
March 1995
CAS No: 302-01-2 Diamide
Diamine
RTECS No: MU7175000
Nitrogen hydride
UN No: 2029
(anhydrous)
EC No: 007-008-00-3
N2H4 / H2N-NH2
Molecular mass: 32.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Flammable. NO open flames, NO sparks, and NO Powder, alcohol-resistant foam,
smoking. water spray, carbon dioxide.
EXPLOSION Above 38/C explosive vapour/air Above 38/C use a closed system, In case of fire: keep drums, etc., cool
mixtures may be formed. Risk of fire ventilation, and explosion-proof by spraying with water. Combat fire
and explosion on contact with many electrical equipment. from a sheltered position.
materials.
EXPOSURE STRICT HYGIENE! IN ALL CASES CONSULT A
DOCTOR!
Inhalation Corrosive. Burning sensation. Ventilation, local exhaust, or breathing Fresh air, rest. Half-upright position.
Cough. Headache. Nausea. protection. Refer for medical attention.
Shortness of breath. Sore throat.
Convulsions.
Skin Corrosive. MAY BE ABSORBED! Protective gloves. Protective clothing. First rinse with plenty of water, then
Redness. Skin burns. Pain. remove contaminated clothes and
rinse again. Refer for medical
attention. Wear protective gloves
when administering first aid.
Eyes Corrosive. Redness. Pain. Severe Eye protection in combination with First rinse with plenty of water for
deep burns. breathing protection. several minutes (remove contact
lenses if easily possible), then take to
a doctor.
Ingestion Corrosive. Abdominal cramps. Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
Confusion. Convulsions. work. Wash hands before eating. vomiting. Refer for medical attention.
Unconsciousness. Vomiting.
Weakness.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Collect T Symbol Special material. Unbreakable
leaking liquid in sealable containers. Absorb remaining N Symbol packaging; put breakable packaging
liquid in sand or inert absorbent and remove to safe R: 45-10-23/24/25-34-43-50/53 into closed unbreakable container.
place. Do NOT absorb in saw-dust or other S: 53-45-60-61 Do not transport with food and
combustible absorbents. Do NOT let this chemical Note: E feedstuffs.
enter the environment. Personal protection: complete UN Hazard Class: 8
protective clothing including self-contained breathing UN Subsidiary Risks: 3 and 6.1
apparatus. UN Pack Group: I
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80S2029 Fireproof. Separated from food and feedstuffs. See Chemical Dangers.
NFPA Code: H3; F3; R2
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
0281 HYDRAZINE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS FUMING AND HYGROSCOPIC LIQUID, WITH The substance can be absorbed into the body by inhalation of its
PUNGENT ODOUR. vapour, through the skin and by ingestion.
Chemical dangers Inhalation risk
The substance decomposes producing ammonia fumes, A harmful contamination of the air can be reached very quickly on
hydrogen and nitrogen oxides, causing fire and explosion hazard. evaporation of this substance at 20/C.
The substance is a strong reducing agent and reacts violently with
oxidants. The substance is a medium strong base. Reacts Effects of short-term exposure
violently with many metals, metal oxides and porous materials The substance is corrosive to the eyes and the skin. The vapour
causing fire and explosion hazard. Air or oxygen is not required for of this substance is corrosive to the respiratory tract. Inhalation of
decomposition. the vapour may cause lung oedema (see Notes). The substance
may cause effects on the liver kidneys and central nervous
Occupational exposure limits system. Exposure may result in death. The effects may be
TLV: 0.01 ppm as TWA; (skin); A3 (confirmed animal carcinogen delayed. Medical observation is indicated.
with unknown relevance to humans); (ACGIH 2004).
MAK: skin absorption (H); sensitization of skin (Sh); Carcinogen Effects of long-term or repeated exposure
category: 2; (DFG 2004). Repeated or prolonged contact may cause skin sensitization. The
substance may have effects on the liver, kidneys and central
nervous system. This substance is possibly carcinogenic to
humans.
PHYSICAL PROPERTIES
Boiling point: 114/C Relative density of the vapour/air-mixture at 20/C (air = 1): 1.00
Melting point: 2/C Flash point: 38/C c.c.
Relative density (water = 1): 1.01 Auto-ignition temperature: see Notes
Solubility in water: very good Explosive limits, vol% in air: 1.8-100
Vapour pressure, kPa at 20/C: 1.4 Octanol/water partition coefficient as log Pow: -3.1
Relative vapour density (air = 1): 1.1
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms.
NOTES
Auto-ignition temperature varies from 24/C on a rusty iron surface to 270/C on glass surface.
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.
Other UN numbers are: UN 2030 Hydrazine hydrate or Hydrazine, aqueous solutions with 37-64% of hydrazine; UN 3293 Hydrazine,
aqueous solutions with not more than 37% of hydrazine.
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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