供应:1000千克
发货:3天内
发送询价
|
Item
|
Standard
|
|
Appearance
|
White powder
|
|
Solubility (1.0g/20ml H2O)
|
Clear Colorless
|
|
Specific rotation(a)D20
(C=1 , H2O)
|
+7.5o to +8.5o
|
|
Assay
|
98.0-102.0%
|
|
Melting Point (oC)
|
200oC to 210 oC
|
|
Heavy metals(Pb)
|
Not more than 20ppm
|
|
Chloride(C1)
|
Not more than 0.02%
|
|
Iron(Fe)
|
Not more than 10ppm
|
|
Arsenic(As2O3)
|
Not more than 4ppm
|
|
Moisture
|
Not more than 1.0%
|
|
Residue on ignition
|
Not more than 0.2%
|
|
Total plate count
|
Not more than 1,000cfu/g
|
|
Yeast and mold
|
Not more than 100cfu/g
|
|
PH
|
5.0-6.0
|
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