Description
ACS reagent, ≥99.5%
Synonym: Salmiac
Linear Formula: NH4Cl
General description
Ammonium chloride (NH4Cl), also called sal ammoniac, the salt of ammonia and hydrogen chloride.
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).
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).
PROPERTIES
grade
ACS reagent
vapor density
1.9 (vs air)
vapor pressure
1 mmHg ( 160.4 °C)
Assay
≥99.5%
form
powder, crystals or chunks
impurities
≤0.005% insolubles
ign. residue
≤0.01%
pH
4.5-5.5 (25 °C, 5%)
mp
340 °C (subl.) (lit.)
anion traces
phosphate (PO43-): ≤2 ppm
sulfate (SO42-): ≤0.002%
cation traces
Ca: ≤0.001%
Fe: ≤2 ppm
Mg: ≤5 ppm
heavy metals: ≤5 ppm (by ICP)
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