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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

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Properties

Quality Segment

200

agency

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

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

grade

ACS reagent, puriss. p.a.

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)

SMILES string

N.Cl

InChI

1S/ClH.H3N/h1H;1H3

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

Description

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.

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Pictograms

GHS07

Signal Word

Warning

Hazard Codes

H302,H319

Precautionary Statements

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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