Product Name

: DI SODIUM PHOSPHATE ANHYDROUS

C.A.S. No.

: 7558-79-4

Molecular Formula

: Na₂HPO₄

Molecular Weight

: 142.00 g/mo

SPECIFICATION

BP

USP

Description

White or almost white hygroscopic powder

White or almost white hygroscopic powder

Identification

1. Reaction

2. Reaction

A : Solution S is slightly Alkaline

B : Passes LOD Test (1.0%)

C: Gives reaction of phosphates.

D: Gives reaction of sodium salts

A: Gives reaction of phosphates.

B: Gives reaction of sodium.

Appearance of Solution

Solution is clear and colorless

-

Solubility

Soluble in water, practically in soluble in ethanol (96%)

-

Insoluble Substances

-

NMT 0.4%

Arsenic

NMT 2 ppm

NMT 16 ppm

Chloride

NMT 200 ppm

NMT. 600 ppm

Sulphates

NMT 500 ppm

NMT 2000 ppm

Iron

NMT 20 ppm

-

Reducing substances

The red color is not completely discharge

-

Residual solvents

-

Meets the requirement

Mono Sodium Phosphate

NMT.2.5%

-

Sodium dihydrogen phosphate

-

-

Heavy Metal

-

NMT 20 ppm

Loss on Drying (at 1300C)

NMT 1.0%

NMT 5.0%

Assay (On dry basis)

98.0% 101.0 %

98.0% - 100.5%