CAS No:50-81-7
H.S Code: 29362700
Characteristics: colorless crystals or a white or almost white, crystalline powder which discolors on exposure to air and moisture; odorless or almost odorless and tasted sour; easily soluble in water and a few partial soluble in ethanol; insoluble in ether and chloroform.
Specification:
|
Item
|
Unit
|
Specs
|
Test result
|
|
Assay
|
%
|
99.0-100.5
|
100.0
|
|
Specific optical rotation
|
|
+20.5°to+21.5°
|
+21.1°
|
|
PH value
|
|
2.1-2.6
|
2.3
|
|
Oxalic acid
|
%
|
0.2
|
0.18
|
|
Iron
|
%
|
0.0002
|
0.00017
|
|
Pb
|
%
|
0.001
|
0.001
|
|
As
|
%
|
0.0003
|
0.0003
|
Packing: 25Kg net in paper carton lined with plastic bag inner.
Application: pharmaceuticals; food and feed additives; vitamins and derivatives; antioxidant; biochemistry; sugar acids; nutritional supplements; vitamin ingredients.
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