Hydrazine

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Properties

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The structure formula of Hydrazine.

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General

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Name

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Hydrazine

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Chemical formula

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N2H4

Related Topics:
N - H

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Appearance

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Colourless liquid

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Physical

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Formula weight

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32.0 amu

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Melting point

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274 K (1 °C)

Related Topics:
K - °C

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Boiling point

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387 K (114 °C)

Related Topics:
K - °C

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Density

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1.01g/ml

Related Topics:
G - Ml

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Solubility

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very soluble

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Thermochemistry

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ΔfH0gas

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95.35 kJ/mol

Related Topics:
KJ - Mol

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ΔfH0liquid

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50.63 kJ/mol

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ΔfH0solid

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37.63 kJ/mol

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S0gas, 1 bar

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238.66 J/mol·K

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S0liquid, 1 bar

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121.52 J/mol·K

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S0solid

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? J/mol·K

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Safety

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Ingestion

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Extremely Toxic, possibly carcinogenic

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Inhalation

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Very dangerous—extremely destructive to the upper respiratory tract

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Skin

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Can cause severe burns, can be absorbed into bloodstream

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Eyes

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Can cause permanent damage

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More info

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Hazardous Chemical Database

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LD50

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as low as 25mg/kg

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SI units were used where possible. Unless otherwise stated, standard conditions were used.

Related Topics:
SI - Standard

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Disclaimer and references

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Hydrazine is a chemical compound with formula

Related Topics:
Chemical compound - Formula

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N2H4 used as a rocket fuel.

Related Topics:
N - H - Rocket fuel

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Hydrazine is a liquid with weak basic properties similar to ammonia. Due to the alpha effect the nucleophilicity is much stronger than that of ammonia, which makes it more reactive. It can be made by oxidizing ammonia with sodium hypochlorite (the Raschig process). It is a monopropellant rocket fuel.

Related Topics:
Basic - Ammonia - Alpha effect - Nucleophilicity - Sodium hypochlorite - Raschig process - Monopropellant rocket

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Hydrazine derivatives 1,1-dimethylhydrazine and 1,2-dimethylhydrazine, in which two of the hydrogen atoms are substituted with methyl groups, are also described as hydrazines.

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1,1-Dimethylhydrazine is used to make hypergolic (self-igniting) bipropellant rocket fuels.

Related Topics:
Hypergolic - Bipropellant rocket

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