Sodium Ascorbate

ITEM

STANDARD

Appearance

White to slightly yellow
crystalline powder

Identification

Positive

Clarity of solution

Clear,

Assay

99.0~101.0%

Loss on Drying

≤0.25%

Sulphate

<150ppm

Specific rotation

+103。~ +106。

pH(10%, W/V)

7.0-8.0

Residual Solvents
(as Methanol)

≤3000ppm

Heavy metals(as Pb)

<3ppm

Iron

<2ppm

Copper

<2ppm

Impurity E

<0.3%