CAS No.: | 24634-61-5 |
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Formula: | C6h7ko2 |
EINECS: | 246-376-1 |
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Item | Specifications |
Identification | Conform to standard |
Appearance | White granular or crystalline powder |
Assay | 99.0% min. |
Free acid(as So4) | 1% max |
Free alkali(as k2co3) | 1% max |
Heavy metals(as Pb) | 10 ppm max. |
Arsenic (as As) | 3 ppm max. |
Loss on drying | 1% max. |
Lead | 2 ppm max. |
Melting point (as sorbic acid) | 133.0ºC-135.0ºC |
Mercury | 1 ppm max. |
Aldehydes | 0.1% max. |
Organic volatile impurities | Meet the requirement |