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11209

Sigma-Aldrich

Ammonium chloride

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, 99.5-100.5% (calc. to the dried substance)

Synonym(s):

Salmiac

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About This Item

Linear Formula:
NH4Cl
CAS Number:
12125-02-9
Molecular Weight:
53.49
Beilstein:
4371014
EC Number:
235-186-4
MDL number:
MFCD00011420
UNSPSC Code:
12352300
eCl@ss:
38050207
PubChem Substance ID:
329749325
NACRES:
NA.21

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

grade

puriss.

Assay

99.5-100.5% (calc. to the dried substance)

form

solid

quality

meets analytical specification of Ph. Eur., BP, USP, FCC

impurities

acidity or alkalinity, complies
 residual solvents, complies
 thiocyanate (SCN), complies

ign. residue

≤0.1% (as SO4)

loss

≤0.5% loss on drying, 105 °C

pH

4.6-6.0 (25 °C, 5%)

mp

340 °C (subl.) (lit.)

anion traces

bromide (Br-): in accordance
iodide (I-): in accordance
sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤3 mg/kg
Ca: ≤100 mg/kg
Cu: ≤20 mg/kg
Fe: ≤20 mg/kg
Mg: ≤10 mg/kg
Pb: ≤4 mg/kg
Zn: ≤20 mg/kg

suitability

complies for appearance of solution

SMILES string

N.Cl

InChI

1S/ClH.H3N/h1H;1H3

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H319

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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Neutron diffraction study of the crystal structure of ammonium chloride.
Levy, Henri A., and S. W. Peterson.
Physical Review, 86(5), 766-766 (1952)
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)
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)
Alexander J F Egan et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(22), 8197-8202 (2014-05-14)
Bacteria surround their cytoplasmic membrane with an essential, stress-bearing peptidoglycan (PG) layer. Growing and dividing cells expand their PG layer by using membrane-anchored PG synthases, which are guided by dynamic cytoskeletal elements. In Escherichia coli, growth of the mainly single-layered
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