Ammonia

R717, anhydrous ammonia

How to detect Ammonia

Formula: NH3 | CAS: 7664-41-7

Synonyms: R717, anhydrous ammonia

Ammonia is widely used in the production of many nitrogenous chemicals, such as ammonium nitrate fertiliser.

Specification

Specification Value/Information
Formula NH3
CAS no. 7664-41-7
Gas Response Factor, 11.7 eV 5.7
Gas Response Factor, 10.6 eV 8.5
Gas Response Factor, 10.0 eV NA
ppm per mg/m⁻³, (20 °C, 1 bar) 1.412
Molecular Weight, g/mole 17.0
Melting point, °C -78
Boiling point, °C -33.3
Flash point, °C 13.9
Upper Explosive Limit, % 28
Lower Explosive Limit, % 15
Density, g.cm⁻³ 0.773
Specification Value/Information
Ionisation Energy, eV 10.18
EH40 TWA, ppm 25
EH40 TWA, mg.m⁻³ 18
EH40 STEL, ppm 35
EH40 STEL, mg.m⁻³ 25
NIOSH ST, ppm 35
NIOSH TWA REL, ppm 25
NIOSH ST, mg.m⁻³ 27
NIOSH TWA REL, mg.m⁻³ 18
NIOSH IDLH, ppm 300
OSHA TWA PEL, ppm 50
OSHA TWA PEL, mg.m⁻³ 35

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