| ≥1 piece |
Specification
|
CAS No.
|
50-81-7
|
|
Chemical Formula
|
C 6 H 8 O 6
|
|
Specification
|
BP 2009/ USP 32 / FCC V
|
|
Packing
|
In 25kg cartons
|
|
Functional use
|
Antioxidant
|
|
Items
|
Specifications
|
|
Appearance
|
White crystalline powder
|
|
Identification
|
Positive reaction
|
|
Melting point
|
About 190 °C
|
|
Specific rotation
|
+20.5 --- +21.5 o
|
|
PH value
|
2.1 - 2.6
|
|
Clarity of solution
|
Clear
|
|
Colour of solution
|
BY7 max
|
|
Heavy metals
|
10 ppm max
|
|
Copper
|
5 ppm max
|
|
Iron
|
2 ppm max
|
|
Assay(on dried basis)
|
99.0 - 100.5%
|
|
Residue on ignition
|
0.1% max
|
|
Organic volatile impurities
|
Conforms
|
|
Oxalic Acid
|
0.2% max
|