Ammonium chloride

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Ammonium chloride
Ammonium chloride.jpg
NH4Cl.png
IUPAC name Ammonium chloride
Other names Sal ammoniac, salmiac, nushadir salt, sal armagnac, salt armoniack
Identifiers
CAS number 12125-02-9
EC number 235-186-4
KEGG D01139
ChEBI CHEBI:31206
RTECS number BP4550000
ATC code B05XA04,G04BA01
SMILES [Cl-].[NH4+]
Properties
Molecular formula NH4Cl
Molar mass 53.491 g/mol
Appearance White solid
hygroscopic
Odor odorless
Density 1.5274 g/cm3
Melting point

338 °C (decomposes)

Boiling point

520 °C

Solubility in water 297 g/L (0 °C)
372 g/L (20 °C)
773 g/L (100 °C)
Solubility in alcohol 6 g/L (19 °C)
Acidity (pKa) 9.24
Refractive index (nD) 1.642
Thermochemistry
Std enthalpy of
formation
ΔfHo298
−314.55 kJ/mol[1]
Standard molar
entropy
So298
94.85 J K−1 mol−1 [1]
Hazards
MSDS ICSC 1051
EU classification Harmful (Xn)
Irritant (Xi)
EU Index 017-014-00-8
NFPA 704

NFPA 704.svg

0
1
0
 
R-phrases R22, R36
S-phrases Template:S2, Template:S22
Flash point Non-flammable
Related compounds
Other anions Ammonium fluoride
Ammonium bromide
Ammonium iodide
Other cations Sodium chloride
Potassium chloride
Hydroxylammonium chloride
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Ammonium chloride is a chemical compound composed of ammonium and chloride ions. It is a colorless crystalline compound. It is used in soldering. It is also used as an electrolyte in the Leclanche cell, a type of primary cell. Ammonium chloride can be deprotonated by strong bases such as sodium hydroxide to produce ammonia gas.

Related pages[change | change source]

References[change | change source]

  1. 1.0 1.1 Solid state data from Template:Nist