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

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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)

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Boiling point

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387 K (114 °C)

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Density

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1.01g/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

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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.

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Disclaimer and references

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Hydrazine is a chemical compound with formula

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N2H4 used as a 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.

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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.

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N: N is the fourteenth letter of the modern Latin alphabet....

H: H is the eighth letter of the Latin alphabet....

K: The eleventh letter of the Latin alphabet, K, or k comes from the Greek Κ or κ (Kappa) developed from the Semitic Kap, symbol for an open hand....