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31107

Sigma-Aldrich

Ammonium chloride

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

Synonym(s):

Salmiac

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500 G
CN¥931.33
1 KG
CN¥1,120.71
2.5 KG
CN¥2,684.01

CN¥931.33

Available to ship onApril 23, 2025Details

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500 G
CN¥931.33
1 KG
CN¥1,120.71
2.5 KG
CN¥2,684.01

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:
329753648
NACRES:
NA.21
form:
crystalline powder

CN¥931.33

Available to ship onApril 23, 2025Details

Request a Bulk Order

grade

ACS reagent
puriss. p.a.

Quality Level

200

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

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1 of 4

This Item
11209A4514V900222
Ammonium chloride puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

31107

Ammonium chloride

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

11209

Ammonium chloride

Ammonium chloride ReagentPlus®, ≥99.5%

A4514

Ammonium chloride

Ammonium chloride Vetec™, reagent grade, 99%

V900222

Ammonium chloride

assay

≥99.5%

assay

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

assay

≥99.5%

assay

99%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

-

grade

ACS reagent, puriss. p.a.

grade

-

grade

-

grade

reagent grade

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

-

pH

4.5-5.5 (20 °C, 5%)

pH

4.6-6.0 (25 °C, 5%)

pH

4.5-5.5 (20 °C, 50 g/L)

pH

4.5-5.5 (20 °C, 50 g/L)

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

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

  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    SDBB3313
    SDBB2393
    STBL4208
    STBL1585
    STBK6122

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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)
    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)
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