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ANHYDROUS HYDRAZINE
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Physical Properties:
Melting
point: 1.4℃
Boiling point: 113.5℃
Saturated
vapour pressure: 1.92/25℃ Kpa
Relative
density(water = 1): 1.01 Relative
density(air = 1): 1.11
Solubility: Dissolved in water, alcohol, liquid
ammonia and organic
solvents
Critical
temperature: 380℃
Critical pressure: 14.69Mpa
Heat of
combustion: 621.1kj/mol
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Chemical Properties:
Combustibility: flammable
Fire insurance grade: second
Flash
point: 38℃
Spontaneous combustion temperature: 270℃
Explosive
limit(v%): 2.9 min. --- 98.0max.
Dangerous
characters: the product has strong restorative
ability.
Contacted
with flame:
Heat can
cause burning and explosion.Contacted with oxidizers
such as
Chromium
acid anhydride, KClO3, KMnO4 etc. can cause strong
chemical
reaction
and burning or explosion. Its vapour is hazardous.
If be ignited, the product can burn without oxygen.
If be heated, it decomposed into toxic nitro oxide
gas.
Combustion
(decomposition) product: nitro oxide (NO)
Stability:
Unstable
Polymerization: none
Avoid:
strong oxidizer, oxygen, copper etc.
Storage
condition: avoid heat and direct sunshine
Fire
extinguishing methods: using atomized water, carbon
dioxide, foam, dry powder and sand etc. as fire
extinguishing agent.
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Dangerous Class:
Toxicity:
middling
LD50: 60mg/kg (adult rat swallow); 91mg/kg (rabbit
skin contact)
LC50: 570ppm 4 hours (adult rat inhalation)
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UN NO.2029
CAS NO.302-01-2 |
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Emergency:disperse the population in polluted area
to safe place, cut off fire sources. Advise the treating
people wear pressure self respirator and anti-chemicals
clothing. Don’t contact the leaked product directly.
Spray water can lower vaporization, but can not lower
the flammability. Absorb with sand or other inflammable
materials, transported to suitable place for treating.
It can wash away by large quantity water, diluted water
released to effluent water system.
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MONOMETHYL HYDRAZINE
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Physical
Properties
Freezing
point: -52.5℃
Boiling point: 87.8℃
Saturated
vapour pressure: 6.61/25℃ Kpa
Relative
density(water = 1): 0.87 Relative
density(air = 1): 1.6
Solubility: Dissolved in water, alcohol, liquid
ammonia and organic
solvents
Critical
temperature: 235℃
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Chemical
Properties
Combustibility: flammable Fire insurance grade:
second
Flash
point: -8℃
Spontaneous combustion temperature: 194℃
Explosive
limit(v%): 2.5 min. --- 98.0max.
Dangerous
characters: the product has strong restorative
ability.
Contacted
with flame:
Heat can
cause burning and explosion.Contacted with oxidizers
such as
Chromium
acid anhydride, KClO3, KMnO4 etc. can cause strong
chemical
reaction
and burning or explosion. Its vapour is hazardous.
If be ignited, the product can burn without oxygen.
Combustion
(decomposition) product: nitro oxide (NO)
Stability:
Unstable
Polymerization: none
Avoid:
strong oxidizer, oxygen, copper etc.
Storage condition: Space in container of its vapor
phase must fill with nitrogen in storage.
Fire
extinguishing methods: using atomized water, carbon
dioxide, foam, dry powder and sand etc. as fire
extinguishing agent.
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UN NO.1244
CAS NO.60-34-4 |
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Emergency:disperse the population in polluted area to
safe place, cut off fire sources. Advise the treating
people wear pressure self respirator and anti-chemicals
clothing. Don’t contact the leaked product directly.
Spray water can lower vaporization, but can not lower
the flammability. Absorb with sand or other inflammable
materials, transported to suitable place for treating.
It can wash away by large quantity water, diluted water
released to effluent water system.
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UNS-DIMETHYL
HYDRAZINE
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Physical
Properties
Freezing
point: -57.2℃
Boiling point: 63.3℃
Saturated
vapour pressure: 20.9/25℃ Kpa
Relative
density(water = 1): 0.78 Relative
density(air = 1): 1.94
Solubility: Dissolved in
water,alcohol,hydrazine,petrol etc.
Critical
temperature: 247.8℃
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Chemical
Properties
A mildly
alkaline and a very strong reducing agent
Combustibility: flammable Fire insurance grade:
Flash
point: -15℃
Explosive
limit(v%): 2.0 min. --- 95.0max.
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UN NO.1163
CAS NO.57-14-7 |
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Emergency::disperse the population in polluted area to
safe place, cut off fire sources. Advise the treating
people wear pressure self respirator and anti-chemicals
clothing. Don’t contact the leaked product directly.
Spray water can lower vaporization, but can not lower
the flammability. Absorb with sand or other inflammable
materials, transported to suitable place for treating.
It can wash away by large quantity water, diluted water
released to effluent water system.
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