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901230

Ammonium chloride

Name: Ammonium chloride
Brand: SIGALD

anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥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

UNSPSC Code:

12352302

Beilstein/REAXYS Number:

4371014

MDL number:

MFCD00011420

Assay:

≥99.5%

Grade:

ACS reagent, anhydrous

Form:

powder or crystals

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Properties

Quality Level

100

grade

ACS reagent, anhydrous

agency

suitable for SM 4500 - NH3, suitable for SM 5210

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

product line

Redi-Dri^™

assay

≥99.5%

form

powder or crystals

impurities

≤0.005% insolubles

ign. residue

≤0.01%

pH

4.5-5.5 (25 °C, 5%)

mp

340 °C (subl.) (lit.)

anion traces

phosphate (PO₄^3-): ≤2 ppm, sulfate (SO₄^2-): ≤0.002%

cation traces

Ca: ≤0.001%, Fe: ≤2 ppm, Mg: ≤5 ppm, heavy metals: ≤5 ppm (by ICP)

SMILES string

N.Cl

InChI

1S/ClH.H3N/h1H;1H3

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

Description

General description

Crystals of ammonium chloride (NH₄Cl) belong to the cubic crystal system. It can be synthesized by reacting HCl with aqueous ammonia solutions. NH₄Cl is formed as a by-product during soda manufactured by Solvay process.

Application

Ammonium chloride (NH₄Cl) has been used as one of the components of red blood cell (RBC) lysis buffer for use in various studies. It may be used as a catalyst in the preparation 3,4-dihydropyrimidin-2-(1H)-ones.
Inorganic ammonium ions (NH₄⁺) effectively catalyze the aldol condensation of carbonyl compounds. It serves as a source of nitrogen during the preparation of trimethylamine hydrochloride (TMA·HCl).

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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pictograms

GHS07

signalword

Warning

hcodes

H302,H319

pcodes

P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313

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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Articles

Redi-Dri™ – The World of Free-flowing Hygroscopic Products

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

Global Trade Item Number

SKU	GTIN
901230-2.5KG	04061835535675
901230-500G	04061835535682