Highest grade Ammonium Chloride USP BP IP ACS Analytical Reagent FCC Food Grade

Ammonium Chloride USP

NH4Cl *3.*9

Assay— Ammonium Chloride contains not less than *9.5 percent and not more than **0.5 percent of NH4Cl, calculated on the dried basis.
Packaging and storage— Preserve in tight containers.
Identification— A solution (1 in *0) responds to the tests for Ammonium and for Chloride
pH: between 4.6 and 6.0, in a solution (1 in *0).
Loss on drying— Dry it over silica gel for 4 hours: it loses not more than 0.5% of its weight.
Residue on ignition— Add 1 mL of sulfuric acid to about 2 g, accurately weighed, and heat the mixture gently until volatilization is complete: the residue is white, and when ignited, not more than 0.1% of nonvolatile substance remains.
Limit of thiocyanate— Acidify *0 mL of a solution (1 in *0) with hydrochloric acid, and add a few drops of ferric chloride TS: no orange-red color is produced.
Heavy metals: 0.**1%.

Ammonium Chloride BP

NH4Cl

DEFINITION
Content or Assay
*9.0 per cent to **0.5 per cent (On dried substance basis).

CHARACTERS
Appearance
White or almost white, crystalline powder or colorless crystals.
Solubility
Freely soluble in water.

IDENTIFICATION
A. It gives the reactions of chlorides.
B. *0 ml of solution gives the reaction of ammonium salts.

TESTS
Solution S
A *0% solution:
Appearance of solution: Solution is clear and colorless.
Acidity or alkalinity: To *0 ml of solution S add 0.*5 ml of methyl red solution. Not more than 0.5 ml of 0.*1 M hydrochloric acid or 0.*1 M sodium hydroxide is required to change the color of the indicator.
Bromides and iodides: To *0 ml of solution S add 0.1 ml of dilute hydrochloric acid R and 0.*5 ml of chloramine solution. After 1 min, add 2 ml of chloroform R and shake vigorously. The chloroform layer remains colorless.
Sulphates: Maximum **0 ppm.
Calcium: Maximum **0 ppm.
Iron: Maximum *0 ppm.
Heavy metals: Maximum *0 ppm.
Loss on drying: Maximum 1.0 per cent, determined on 1.*0 g by drying in an oven at **5 °C for 2 h.
Sulphated ash: Maximum 0.1 per cent, determined on 2.0 g.

Ammonium Chloride FCC Food Grade

NH4Cl Formula wt *3.*9

DESCRIPTION
Ammonium Chloride occurs as colorless crystals or as a white, fine or coarse, crystalline powder. It is somewhat hygroscopic. One gram dissolves in 2.6 mL of water at *5°, in 1.4 mL of boiling water, in about **0 mL of alcohol, and in about 8 mL of glycerin. The pH of a 1:*0 solution is between 4.5 and 6.0.

Ammonium Chloride ACS Analytical Reagent

American Chemical Society Analytical Reagent Grade
NH4Cl Formula Wt *3.*9
CAS Number *******9

REQUIREMENTS
Assay . . . . . . .: ≥*9.5% NH4Cl
pH of a 5% solution: 4.*5.5 at *5 °C

MAXIMUM ALLOWABLE
Insoluble matter . . .: 0.**5%
Residue after ignition: 0.*1%
Calcium (Ca) . . . . .: 0.**1%
Magnesium (Mg) . . . .: 5 ppm
Heavy metals (as Pb) .: 5 ppm
Iron (Fe) . . . . . . : 2 ppm
Phosphate (PO4). . . .: 2 ppm
Sulfate (SO4). . . . .: 0.**2%