Product Name

: SODIUM CITRATE TRIBASIC DIHYDARTE

C.A.S. No.

: 6132-04-3

Molecular Formula

: C₆H₅Na₃O₇.2H₂₀

Molecular Weight

: 294.1 g/mol

SPECIFICATION

IP

BP

USP

Description

White Granular crystals or a white, crystalline powder odorless; slightly deliquescent in moist air.

A white or almost white, crystalline powder or white or almost white, granular crystals, slightly deliquescent in moist air

A white or almost white, crystalline powder or colorless crystals

Solubility

-

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

-

Identification

(A)Reaction

(B)Reaction

A : It gives reaction of Citrates

B: It gives reaction of Sodium salts.

A : It gives reaction of Citrates

B : It gives reaction of Sodium

A : It gives reaction of Citrate & Sodium

B : Upon ignition it yields an alkaline residue which effervesces when treated with 3 N Hcl

Appearance of Solution

Clear & Colorless

Clear & Colorless

-

Acidity or Alkalinity

NMT 0.5 ml of 0.05 M sulphuric acid or 0.1 M sodium hydroxide is required.

NMT 0.2 ml of 0.1 M Hydrochloric acid or 0.1 M sodium hydroxide is required to change the color of indicator.

No pink color is produced by addition of phenolphthalein TS

Chloride

NMT 100 ppm

NMT 50 ppm.

NMT 350 ppm.

Sulphates

NMT 150 ppm

NMT 150 ppm

NMT 50 ppm

Oxalates

NMT 300 ppm

NMT 300 ppm

-

Tartrates

No crystalline precipitate is formed

-

No crystalline precipitate is formed

Heavy Metals

NMT 10 ppm.

-

NMT 10 ppm.

Readily carbonisable substances

The solution is not more intensely colored than reference solution YS2 or GYS2

The solution is not more intensely colored than reference solution Y2 or GY2

-

Water

11.0 %-13.0 %

11.0 %-13.0 %

10.0 %-13.0 %

Pyrogens

-

It should comply with the test for Pyrogens.

-

Residual Solvents

-

-

Meets the requirement

Arsenic

NMT 2 ppm

-

-

Assay

99.0% - 101.0%

99.0% - 101.0%

99.0 % - 101.0 %