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Lactose

Lactose

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Lactose

SPECIFICATIONS

UNIT

STANDARDS

RESULTS

Description

-

White or almost white, crystalline powder odourless.

White crystalline powder odourless.

Solubility

-

Freely but slowly soluble in water; practically insoluble in ethanol (95%)

Freely but slowly soluble in water practically insoluble in ethanol 95%

Identification

-

Passes test

Passes test

Clarity of solution

-

Passes test

Passes test

Specific optical rotation


+54.4 to +559

+54.7

Acidity/ Alkalinity

-

Passes test

Passes test

Arsenic (As)

%

< 0.0001 max.

<0.0001

Heavy metals (as Pb)

%

0.0005 max.

0.0003

Sulphated ash

%

0.1 max.

0.05

Water

%

4.5 to 5.5

5.3