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A4514

Sigma-Aldrich

Ammonium chloride

ReagentPlus®, ≥99.5%

Synonym(s):
Salmiac
Linear Formula:
NH4Cl
CAS Number:
Molecular Weight:
53.49
Beilstein:
4371014
EC Number:
MDL number:
eCl@ss:
38050207
PubChem Substance ID:
NACRES:
NA.21

vapor density

1.9 (vs air)

Quality Level

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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This Item
901230213330PHR1327
Ammonium chloride ReagentPlus®, ≥99.5%

Sigma-Aldrich

A4514

Ammonium chloride

Ammonium chloride anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

901230

Ammonium chloride

Ammonium chloride ACS reagent, ≥99.5%

Sigma-Aldrich

213330

Ammonium chloride

Ammonium chloride Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1327

Ammonium chloride

assay

≥99.5%

assay

≥99.5%

assay

≥99.5%

assay

-

form

powder or crystals

form

powder or crystals

form

powder, crystals or chunks

form

-

pH

4.5-5.5 (20 °C, 50 g/L)

pH

4.5-5.5 (25 °C, 5%)

pH

4.5-5.5 (25 °C, 5%)

pH

-

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

solubility

water: soluble 100 mg/mL

solubility

-

solubility

-

solubility

-

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 Sigma-Aldrich Co. LLC

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Ammonium chloride

Gowariker V, et al.
The Fertilizer Encyclopedia, 42-43 (2009)
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 Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)
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 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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