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Key Documents

A4514

Sigma-Aldrich

Ammonium chloride

ReagentPlus®, ≥99.5%

Synonym(s):

Salmiac

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About This Item

Linear Formula:
NH4Cl
CAS Number:
Molecular Weight:
53.49
Beilstein/REAXYS Number:
4371014
EC Number:
MDL number:
UNSPSC Code:
12352300
eCl@ss:
38050207
PubChem Substance ID:
NACRES:
NA.21

agency

suitable for SM 5210

Quality Level

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

product line

ReagentPlus®

assay

≥99.5%

form

powder or crystals

pH

4.5-5.5 (20 °C, 50 g/L)

mp

340 °C (subl.) (lit.)

solubility

water: soluble 100 mg/mL

SMILES string

N.Cl

InChI

1S/ClH.H3N/h1H;1H3

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

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General description

Ammonium chloride is commonly used as fertilizer. It can be synthesized by neutralizing ammonia with hydrochloric acid. It shows high vapor pressure at higher temperature. It is employed as an electrolyte during the production of drycell batteries. Its crystal structure has been analyzed by powder and single crystal neutron diffraction methods. Ammonium chloride shows change in some of the physical characteristics on its addition to a high carbonate containing unfired and fired illitic shale.

Application

Ammonium chloride may be used as a catalyst in the preparation of:
  • 3,4-dihydropyrimidin- 2-(1H)-ones
  • diindolylmethanes
  • 2-arylbenzothiazoles derivatives
  • 4(3H)-quinazolinones

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ammonium Chloride-Catalyzed One-Pot Synthesis of 4(3H)-Quinazolinones Under Solvent-Free Conditions.
Huang G, et al.
Synthetic Communications, 44(12), 1786-1794 (2014)
Ammonium chloride; as a mild and efficient catalyst for the synthesis of some 2-arylbenzothiazoles and bisbenzothiazole derivatives.
Maleki B and Salehabadi H.
European Journal of Organic Chemistry, 1(4), 377-380 (2010)
Ammonium Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)
Gowariker V, et al.
The Fertilizer Encyclopedia, 42-43 (2009)
Ammonium chloride catalyzed one-pot synthesis of diindolylmethanes under solvent-free conditions.
Azizian J, et al.
Catalysis Communications, 8(7), 1117-1121 (2007)

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