AMMONIUM CHLORIDE SALAMMONIAC

DESCRIPTION        

COLOURLESS CRYSTALS OR WHITE, CRYSTALLINE  POWDER.

SOLUBILITY           

FREELY  SOLUBLE  IN  WATER; SPARINGLY SOLUBLE IN ETHANOL (95%).

STANDARD

CONTENT NOT LESS THAN 99.0%  AND  NOT MORE  THAN 100.5% OF NH₄Cl CALCULATED WITH  REFERENCE TO THE DRIED SUBSTANCE.

IDENTIFICATION 

A  10% AMMONIUM CHLORIDE w/w SOLUTION  GIVES  THE  REACTIONS  OF AMMONIUM SALTS AND OF CHLORIDES.

CLARITY  AND       

A 10% w/w AMMONIUM CHLORIDE SOLUTION IS CLEAR &

COLOUR OF SOLN.

COLOURLESS.

pH      

BETWEEN 4.5 AND 6.0, DETERMINED IN A 5.0 W/V SOLUTION.

ARSENIC     

NOT MORE THAN 4 PARTS PER MILLION.

HEAVY METALS    

NOT MORE THAN 10 PARTS PER MILLION.

MAGNESIUM &      

NOT MORE THAN 1%.

ALKALI SALTS

IRON            

NOT MORE THAN 20 PARTS PER MILLION.

SULPHATE              

NOT MORE THAN 150 PARTS PER MILLION.

SULPHATED ASH  

NOT MORE THAN 0.1%.

CALCIUM                

NOT MORE THAN 200 PARTS PER MILLION.

THIOCYANATE      

TO PASS THE TEST.

LOSS ON DRYING 

NOT MORE THAN 1%, DETERMINED ON 1 GM BY DRYING IN AN OVEN AT 105⁰C.

Particulars

BP Specification

Our Typical Product

Dry Basis Assay

99-100.5%

99.9%

Characteristics

Colourless Crystals or white crystalline powder; odourless

White, crystalline powder; odourless

Solubility

Soluble in 2.7 parts of water

Soluble in 2.7 parts of water

Identification

Yields the reactions characteristic of ammonium salts and of chlorides

Yields the reactions characteristic of ammonium salts and of chlorides

Acidity or alkalinity

To conform to specified test

Passes test

Clarity and Colour of Solution

Clear & colourless solution (10% w/v)

Clear & colourless solution (10% w/v)

Calcium

200 ppm

30 ppm

Heavy Metals

10 ppm

Nil

Iron

20 ppm

5 ppm

Bromide and iodide

To conform to specified test

Passes test

Sulphate

150 ppm

20 ppm

Loss on Drying

1%

0.05%

Sulphated Ash

0.1%

0.009%

Particulars

Our Typical Product

USP Specification

Dry Basis Assay

99.9%

99.5-100.5%

pH of 5% Solution

5.3

4.6-6

Sulphated Ash

0.009%

0.1% (residue on ignition)

Heavy Metals as Pb

Nil

0.001%

Loss on Drying

0.1%

0.5% (4 hours on silica gel)

Thiocyanate

Passes test

To pass the test