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Merck
CN

09700

Ammonium chloride

puriss. p.a., ACS reagent, ≥99.5% (AT)

Synonym(s):

Salmiac

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About This Item

Linear Formula:
NH4Cl
CAS Number:
12125-02-9
Molecular Weight:
53.49
EC Number:
235-186-4
UNSPSC Code:
12352300
MDL number:
MFCD00011420
Beilstein/REAXYS Number:
4371014

Key Documents

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InChI

1S/ClH.H3N/h1H;1H3

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

grade

ACS reagent, puriss. p.a.

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

assay

≥99.5% (AT)

ign. residue

≤0.01%

pH

4.5-5.5 (25 °C, 50 mg/mL in H2O)

mp

340 °C (subl.) (lit.)

anion traces

nitrate (NO3-): ≤5 mg/kg, phosphate (PO43-): ≤2 mg/kg, sulfate (SO42-): ≤20 mg/kg

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤2 mg/kg, Fe: ≤2 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Zn: ≤2 mg/kg

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pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H319

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

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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The Vibrational Spectra of Molecules and Complex Ions in Crystals III. Ammonium Chloride and Deutero-Ammonium Chloride.
Wagner EL and Hornig DF.
J. Chem. Phys. , 18(3), 296-304 (1950)
Neutron diffraction study of the crystal structure of ammonium chloride.
Levy, Henri A., and S. W. Peterson.
Physical Review, 86(5), 766-766 (1952)
Barbara Nozière et al.
Physical chemistry chemical physics : PCCP, 12(15), 3864-3872 (2010-04-02)
In natural environments such as atmospheric aerosols, organic compounds coexist with inorganic salts but, until recently, were not thought to interact chemically. We have recently shown that inorganic ammonium ions, NH(4)(+), act as catalysts for acetal formation from glyoxal, a
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)
Christine Burkard et al.
PloS one, 9(7), e101762-e101762 (2014-07-16)
Studies of viral entry into host cells often rely on the detection of post-entry parameters, such as viral replication or the expression of a reporter gene, rather than on measuring entry per se. The lack of assays to easily detect
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