CAS No.: | 50-81-7 |
---|---|
Formula: | C6h8o6 |
EINECS: | 253-874-2 |
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Item
|
Analysis Results
|
Characteristics
|
White or almost White crystals Crystalline Powder
|
Identification
|
Positive
|
Melting Point
|
191.1
|
PH(with 2% water solution)
|
2.42
|
PH(with 5% water solution)
|
2.35
|
Clarity of Solution
|
Clear
|
Colour of Solution
|
BY7
|
Copper
|
5ppm
|
Heavy Metals
|
10ppm
|
Mercury
|
0.1mg/kg
|
Lead
|
2mg/kg
|
Arsenic
|
3ppm
|
Oxalic Acid
|
0.2%
|
Iron
|
2ppm
|
Impurity E
|
0.2%
|
Loss of Drying
|
0.4%
|
Sulphate Ash(Residue on Ignition)
|
0.1%
|
Specific Optical Rotation
|
+21.11°
|
Residual Solvents
|
Pass
|
Assay
|
99.78%
|