产品描述

Appearance White to slightly yellow cr ystalline powder Identification Positive Assay (as C 6H 7NaO 6) 99.0 ‐ 101.0% Specific optical rotation +103° ‐ +106° Clarity of solution Clear pH (10%, W/V ) 7.0 ‐ 8.0 Loss on drying =<0.25% Sulphate (mg/kg) =< 150 Total heavy metals =<0.001% Lead =<0.0002% Arsenic =<0.0003% Mercury =<0.0001% Zinc =<0.0025% Copper =<0.0005% Residual Solvents (as Menthanol) =<0.3% Total plate count (cfu/g) =<1000 Yeasts & molds (cuf/g) =<100 E.coli/ g Negative Salmonella/ 25g Negative Staphylococcus aureus/ 25g Negative