Product Name

: POTASSIUM PHOSPHATE MONOBASIC

C.A.S. No.

: 7778-77-0

Molecular Formula

: KH₂PO₄

Molecular Weight

: 136.09 g/mol

SPECIFICATION

BP

USP

Appearance

White crystalline powder or colorless crystals.

Colorless & odorless crystals

Solubility

Freely soluble in water, practically insoluble in ethanol.(96 %)

Freely soluble in water, practically insoluble in alcohol.

Identification

• A) Reaction
• B) Reaction
• C)Reaction

• It gives reaction of Potassium
• It gives reaction for Phosphates
• Solution s is faintly acid.

• It gives reaction of Potassium
• It gives reaction for Phosphates

Insoluble Substances

-

NMT 0.2 %

Chloride

NMT 200 ppm

-

pH

4.2 - 4.5

-

Arsenic

NMT 2 ppm

NMT 3 ppm

Lead

-

NMT 5 ppm

Limit of Fluoride

-

NMT 10 ppm

Sulfates

NMT 300 ppm

-

Reducing substances

The color of the permanganate is not completely discharge.

-

Iron

NMT 10 ppm

-

Sodium

NMT 0.1 %

-

Heavy Metals

-

NMT 20 ppm

Loss on Drying (Temp 125^oC-130^oC)

NMT 2.0 %

NMT 1.0 %

Assay

98.0 % to 100.5 %(on dried basis)

98.0 % to 100.5 %