Sodium Chloride

Grades

IP

BP

USP

Identification

Positive to tests of sodium & chloride

Positive to tests of sodium & chloride

Positive to tests of sodium & chloride

Description

Colour less or White, crystalline powder, odourless.

Colour less or White, crystalline powder, odourless.

Colour less or White, crystalline powder, odourless.

Alkalinity/Acidity

0.5 ml of 0.01 M HCl/ 0.5 ml of 0.01 M NaOH

0.5 ml of 0.01 M HCl/ 0.5 ml of 0.01 M NaOH

0.5 ml of 0.01 M HCl/ 0.5 ml of 0.01 M NaOH

Arsenic

Max 1 ppm

Max 1 ppm

Max 1 ppm

Barium

Max 20 ppm

Max 20 ppm

Max 20 ppm

Iron

Max 20 ppm

Max 2 ppm

Max 2 ppm

Heavy Metals

Max 5 ppm

Max 5 ppm

Max 5 ppm

Clarity of Solution

Clear & Colorless

Clear & Colorless

Clear & Colorless

Magnesium & alkaline-earth metals

50 ppm calculated as Calcium

100 ppm calculated as Calcium

100 ppm calculated as Calcium

Bromide

Max 100 ppm

Max 100 ppm

Max 100 ppm

Ferro Cyanide

Nil

Nil

Max 10 ppm

Iodide

No blue colour

No blue colour

No blue colour

Sulphate

300 ppm

Max. 200 ppm

Max. 200 ppm

Phosphate

-

Max. 25 ppm

Max. 25 ppm

Nitrates

-

Max. 100 ppm

Max. 100 ppm

Bacterial Endotoxins

-

Max. 5

-

Loss on drying

Max 1.0% @ 105^oC for 2 hrs.

Max. 0.5 % @ 105^oC for 2 hrs.

Max 0.5 % @ 105^oC for 2 hrs.

Assay Dry Basis

99.0 % to 100.5 %

99.0 % to 100.5 %

99.0 % to 100.5 %