Obtained from nitrogen using the Haber process and used in the manufacture of fertilizers and explosives. Pure NH3 is a colorless gas with a sharp, characteristic odor. It is easily liquified by pressure, and is very soluble in water. Ammonia acts as a weak base.


Also known as
Aer Urinosum, Volatile Alkali.

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Atomic / Molecular Weight 17.031 gmol-1Clip
Density 0.771 at STP kgm-3Clip
Melting Point 195.26 KClip
Boiling Point 240 KClip
Specific heat capacity 2190 Jkg-1K-1Clip
Latent heat of evaporation 1371000 Jkg-1Clip
Ratio of Specific Heats 1.31 Clip
Thermal conductivity 0.0218 Wm-1K-1Clip
Refractivity 0.000376 Clip
Dielectric constant 15.5 Clip
Viscosity 0.00000918 Nsm-2Clip
Kinematic Viscosity 1.19066147859922E-05 m2s-1Clip
Critical Temperature 405 KClip
Critical Pressure 11300000 PaClip
Critical Volume 0.0000725 m3mol-1Clip
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See also: Ammine, Ammonium Acetate, Ammonium Bicarbonate, Ammonium Ion, Ammonotelic, Haber Process.

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Subjects: Chemistry

Weblinks: A website designed to keep you up to date on the idea of using Ammonia as the energy vector for transport.