Ammonium chloride

Name: Ammonium chloride
Brand: SIGALD

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

Synonym(s):

Salmiac

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About This Item

Linear Formula:

NH₄Cl

CAS Number:

12125-02-9

Molecular Weight:

53.49

NACRES:

NA.21

PubChem Substance ID:

329753648

eCl@ss:

38050207

UNSPSC Code:

12352300

EC Number:

235-186-4

MDL number:

MFCD00011420

Beilstein/REAXYS Number:

4371014

assay:

≥99.5%

form:

crystalline powder

Product Name

Ammonium chloride, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

InChI

1S/ClH.H3N/h1H;1H3

SMILES string

N.Cl

grade

ACS reagent
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

assay

≥99.5%

form

crystalline powder

pH

4.5-5.5 (20 °C, 5%)

mp

340 °C (subl.) (lit.)

anion traces

nitrate (NO₃^-): ≤5 mg/kg
phosphate (PO₄^3-): ≤2 mg/kg
sulfate (SO₄^2-): ≤20 mg/kg

cation traces

As: ≤0.5 mg/kg
Ca: ≤5 mg/kg
Cu: ≤2 mg/kg
Fe: ≤2 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤2 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

Quality Level

200

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Related Categories

Lab Chemicals

Salts

Application

Ammonium chloride can be used as a catalyst:

To synthesize 3,4-dihydropyrimidin-2-(1H)-ones via solvent-free Biginelli-condensation reaction.
For the aldol condensation of carbonyl compounds.
In the thia-Michael addition reaction of thiols to different α-enones.

It can also be used as:

A promoter in the enantioselective hydrogenation of an unprotected β-enamine amides.
A pH-adjuster in the preparation of waterborne glucose silicone resin.

pictograms

GHS07

signalword

Warning

hcodes

H302,H319

pcodes

P264 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313 - P501

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Ammonium chloride-catalyzed carbon-sulfur bond formation in water

Chen W, et al.

Catalysis Communications, 9, 1079-1081 (2008)

Identification of ammonium chloride as an effective promoter of the asymmetric hydrogenation of a beta-enamine amide

Clausen A, et al.

Organic Process Research & Development, 10, 723-726 (2006)

Physical and mechanical properties of poplar wood modified by glucose-urea-melamine resin/sodium silicate compound

Liu Q, et al.

Forests, 12, 127-127 (2021)

Ammonium chloride-catalyzed one-pot synthesis of 3, 4-dihydropyrimidin-2-(1H)-ones under solvent-free conditions

Shaabani A, et al.

Tetrahedron Letters, 44, 857-859 (2003)

Neutron diffraction study of the crystal structure of ammonium chloride.

Levy, Henri A., and S. W. Peterson.

Physical Review, 86(5), 766-766 (1952)

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