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31107

Ammonium chloride

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

Key Documents

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InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

InChI

1S/ClH.H3N/h1H;1H3

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 (PO43-): ≤2 mg/kg, sulfate (SO42-): ≤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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1 of 4

This Item
11209A4514901230
Ammonium chloride puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

Sigma-Aldrich

31107

Ammonium chloride

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

Sigma-Aldrich

11209

Ammonium chloride

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

form

crystalline powder

form

solid

form

powder or crystals

form

powder or crystals

assay

≥99.5%

assay

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

assay

≥99.5%

assay

≥99.5%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

grade

ACS reagent, puriss. p.a.

grade

-

grade

-

grade

ACS reagent, anhydrous

anion traces

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

anion traces

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

anion traces

-

anion traces

phosphate (PO43-): ≤2 ppm, sulfate (SO42-): ≤0.002%

vapor pressure

1 mmHg ( 160.4 °C)

vapor pressure

1 mmHg ( 160.4 °C)

vapor pressure

1 mmHg ( 160.4 °C)

vapor pressure

1 mmHg ( 160.4 °C)

Application

Ammonium chloride can be used as a catalyst:
  • To synthesize 3,4-dihydropyrimidin-2-(1H)-ones via solvent-free Biginelli-condensation reaction[1].
  • For the aldol condensation of carbonyl compounds[2].
  • In the thia-Michael addition reaction of thiols to different α-enones[3].
It can also be used as:
  • A promoter in the enantioselective hydrogenation of an unprotected β-enamine amides[4].
  • A pH-adjuster in the preparation of waterborne glucose silicone resin[5].

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

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB7744
SDBB6181
SDBB6362
SDBB4996
SDBB3313

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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)
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)
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)
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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