|
Item |
Specification |
Result |
|
Appearance |
White crystalline powder or granular |
White crystalline granular |
|
Assay(on dry basis),% |
99.5-100.5 |
99.95 |
|
PH value |
5-7 |
6.52 |
|
Loss on drying,% |
≤0.2 |
0.10 |
|
Ash,% |
≤0.1 |
0.01 |
|
Melting range,℃ |
119-123 |
119.8-122.5 |
|
Lead (Pb),mg/kg |
≤0.5 |
<0.085 |
|
As,mg/kg |
≤0.3 |
0.041 |
|
Reducing Sugars,% |
≤0.3 |
<0.3 |
|
Ribitol and glycerol,% |
≤0.1 |
<0.01 |
|
Cont of bacteria,cfu/g |
≤300 |
<10 |
|
Yeast and Moulds cfu/g |
≤100 |
<10 |
|
Coliform MPN/100g |
≤30 |
Negative |
|
Pathogens |
Negative |
Negative |