SODIUM PHOSHPHATE MONOBASIC ANHYD

Product Name

: MONOBASIC SODIUM PHOSPHATE ANHYDROUS

C.A.S. No.

: 7558-80-7

Molecular Formula

: NaH₂PO₄

Molecular Weight

: 120.00 g/mol

SPECIFICATION

IP

BP

USP

Description

A white powder or colorless crystals.

White, slightly deliquescent crystals or granules.

White, slightly deliquescent crystals or granules.

Solubility

Very soluble in water and slightly soluble in ethanol (96 %).

Very soluble in water and slightly soluble in ethanol (96 %).

-

Identification

• Reaction

• Reaction

• Reaction

• LOD

A: It gives reaction of phosphates.

B: It gives reaction of sodium salts.

A : 10 % solution is slightly acidic

B: It gives reaction of Phosphates.

C: It gives reaction of Sodium Salts.

D : Complies with the test for loss on drying

A: It gives reaction of phosphates.

B: It gives reaction of sodium salts.

pH

4.1 - 4.5

4.2 - 4.5

4.1 - 4.5

Clarity & Color of solution

-

Clear & Colorless

-

Insoluble Substances

NMT 0.2 %

-

NMT 0.2 %

Chloride

NMT 140 ppm

NMT 200 ppm

NMT 140 ppm

Sulphate

NMT 1500 ppm

NMT 300 ppm

NMT 1500 ppm

Al , Ca & related -element

Not became turbid when rendered slightly alkaline to litmus paper with 6 M ammonium hydroxide.

-

Not became turbid when rendered slightly alkaline to litmus paper

Arsenic

NMT 8 ppm

NMT 2 ppm

NMT 8 ppm

Heavy metals

NMT 20 ppm

-

NMT 20 ppm

Water by KF

NMT 2.0 %

-

NMT 2.0 %

Organic volatile impurities

-

-

Meets the requirement

Residual Solvents

-

Meets the requirement

Iron

-

NMT.10 ppm

-

Reducing substance

-

The solution retains a slight red color.

-

LOD ( at 130^oC )

-

NMT 1.0%

-

Assay (on dry basis)

98.0 % - 103.0 %

98.0 % - 100.5%

98.0%-103.0%