离岸价格
获取最新报价4.5 / Kilogram
|Minimum Order
位置:
China
最小订单价格:
最小订单:
1 Ton
包装细节:
25kg net carton
交货时间:
Prompt
供应能力:
20 Ton per Day
付款方式:
T/T, L/C, D/P
联系人 Ms. seasons
Room 0813, ZhenBei Road No. 2500, Shanghai, Shanghai
ASCORBIC ACID
|
Analysis Contents |
Analysis Standard |
Analysis Results |
|
Characteristics |
White or almost white crystals crystalline powder |
Pass |
|
Identification |
Positive reaction |
Positive |
|
Melting point |
About **0°C |
**0.2°C |
|
PH |
2.**2.8 |
2.*1 |
|
Clarity of solution |
Clear |
Clear |
|
Colour of solution |
≤BY7 |
≤BY7 |
|
Copper |
≤5ppm |
≤5ppm |
|
Heavy metals |
≤*0ppm |
≤*0ppm |
|
Mercury |
≤0.1mg/kg |
≤0.1mg/kg |
|
Zinc |
≤0.*5ppm |
≤0.*5ppm |
|
Lead |
≤2mg/kg |
≤2mg/kg |
|
Arsenic |
≤3ppm |
≤3ppm |
|
Cadmium(Cd) |
≤1mg/kg |
≤1mg/kg |
|
Oxalic acid |
≤0.2% |
0.2% |
|
Iron |
≤2ppm |
≤2ppm |
|
Loss of Drying |
≤0.4% |
≤0.4% |
|
Residue On lgnition |
≤0.1% |
≤0.1% |
|
Specific rotation |
**0.5°- **1.5° |
**1.*0° |
|
Mesh |
****0 Mesh |
Pass |
|
Origanic voltaic impurities |
Pass |
Pass |
|
Free of metal perticles |
Containing or not containing |
Not containing |
|
Assay |
*9.0%***0.5% |
*9.*7% |
|
Conclusion : |
The above-mentioned product conforms to BP /USP |
|
