| Customization: | Available |
|---|---|
| CAS No.: | 497-76-7 |
| Formula: | C12h16o7 |
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|
Item |
Specifications |
|
|
Appearance |
White crystalline powder |
|
|
Assay |
≥99.0% |
|
|
Melting point |
|
|
|
Clarity of water solution |
Transpency,colorless,nonesuspended matters |
|
|
pH value of 1% aqueous solution |
5.0~7.0 |
|
|
Specific optical value |
[α]D20=-66±2° |
|
|
Infrared peak value |
1515cm-11220cm-11050cm-1±(5~8)cm-1 |
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|
Arsenic |
≤2ppm |
|
|
Hydroquinone |
≤20ppm |
|
|
Heaby metal |
≤20ppm |
|
|
Loss on drying |
≤0.5% |
|
|
Ignition residue |
≤0.5% |
|
|
Arsenic |
≤2ppm |
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