Product Name

: SODIUM BICARBONATE ANHYDROUS

C.A.S. No.

: 144-55-8

Molecular Formula

: NaHCO₃

Molecular Weight

: 84.01 g/mol

SPECIFICATION

IP

BP

USP

Description

A White crystalline powder. Or small, Opaque monoclinic crystals. It gradually forms sodium carbonate on heating in the dry state or in solution.

White or almost white crystalline powder.

White or almost white crystalline powder.

Solubility

-

Soluble in water, practically insoluble in ethanol (96 %).

-

Appearance of solution

Clear and colorless.

Clear and colorless.

-

Identification

1. By color

2. Reaction

3. Reaction

A: The solution becomes red.

B : The test gives the reaction of bicarbonates

C: Test A gives reaction of Sodium salt.

A: The solution becomes red.

B: The test gives the reaction of Carbonates & bicarbonates.

C : Test A gives reaction of Sodium

A: The test gives the reaction of bicarbonates.

B: Test A gives reaction of Sodium

Loss on Drying

-

-

NMT 0.25 %

Copper

-

-

NMT 1 ppm

(for hemodialysis)

Insoluble substances

-

-

Solution is complete & Clear

Carbonates(pH)

NMT 8.6

NMT 8.6

NMT 0.23 %

(for hemodialysis)

Limit of sulphur compounds

-

-

NMT 150 ppm

Aluminium

-

-

NMT 2 ppm

(for hemodialysis)

Arsenic

NMT 2 ppm

NMT 2 ppm

NMT 2 ppm

Normal carbonate

-

-

The solution does not assume more than a faint pink color immediately.

Heavy metals

NMT 5 ppm

NMT 5 ppm

Calcium & Magnesium

(USP)

2.0 % w/v solution when boiled for 5 min.is clear.

NMT100 ppm

Ca:NMT 100 ppm

Mg:NMT 40 ppm

(for hemodialysis)

Iron

NMT 20 ppm

NMT 20 ppm

NMT 5 ppm

(for hemodialysis)

Chlorides

NMT 200 ppm

NMT150 ppm

NMT150 ppm

Ammonium

NMT 20 ppm

No blue color develop

Sulphates

NMT150 ppm

NMT150 ppm

-

Organic Volatile Impurities

-

-

Meets the requirements

Limit of organic

-

-

NMT 100 ppm (for hemodialysis)

Assay

99.0 % - 101.0 %

99.0 % - 101.0 %

99.0 % - 100.5 %