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09718

Sigma-Aldrich

Ammonium chloride

BioUltra, for molecular biology, ≥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
Beilstein:
4371014
EC Number:
235-186-4
MDL number:
MFCD00011420
UNSPSC Code:
12352302
eCl@ss:
38050207
PubChem Substance ID:
329748807
NACRES:
NA.26

grade

for molecular biology

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

product line

BioUltra

Assay

≥99.5% (AT)

form

powder or crystals

impurities

DNases, none detected
 RNases, none detected
 insoluble matter, passes filter test
 phosphatases, none detected
 proteases, none detected

pH

4.5-5.5 (25 °C, 1 M in H2O)

mp

340 °C (subl.) (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

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

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤5 mg/kg
Zn: ≤2 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: ≤0.021
λ: 280 nm Amax: ≤0.019

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ammonium chloride United States Pharmacopeia (USP) Reference Standard

USP

1029953

Ammonium chloride

Potassium bicarbonate ACS reagent, 99.7%, powder, crystals or granules

Sigma-Aldrich

237205

Potassium bicarbonate

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