Certification: | QS, CCC, RoHS, ISO, CE |
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Shape: | Powder |
Type: | Vitamin |
Keyword: | Ascorbic Acid CAS 50-81-7 |
Keyword1: | Ascorbic Acid |
Keyword2: | CAS 50-81-7 in Stock |
Samples: |
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Product name | Ascorbic Acid |
CAS NO. | 50-81-7 |
Molecular weight | 176.12 |
Molecular formula | C6H8O6 |
Purity | 99% |
Package | 25kg/drum |
ITEMS
|
STANDARD
|
Characteristics
|
White or almost white, crystalline powder or colorless crystals
|
Melting point
|
189ºC~193ºC
|
Special optical rotation
|
20.5º~+21.5º
|
Heavy metals
|
≤10ppm
|
Iron
|
≤2ppm
|
Assay
|
99.0%~100.5%
|
Copper
|
≤5ppm
|
Mercury
|
≤0.1ppm
|
Arsenic
|
≤3ppm
|
Lead
|
≤2ppm
|
Oxalic acid(impurity E)
|
≤0.2%
|
Loss on drying
|
≤0.4%
|
Sulphated ash
|
≤0.1%
|
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