Vitamin C
| Model: | - |
|---|---|
| Brand: | - |
| Origin: | Made In China |
| Category: | Chemicals / Organic Chemical Materials / Alkene |
| Label: | ascorbic acid |
| Price: |
-
|
| Min. Order: | - |
Product Description
|
Item
|
Analysis standard
|
Analysis results
|
|
Charachteristics
|
White or almost white crystalline powder
|
pass
|
|
Identification
|
Positive reaction
|
Positive
|
|
Melting point
|
About 190℃
|
191℃
|
|
Ph
|
2.1-2.6
|
2.4
|
|
Clarity of solution
|
Clear
|
Clear
|
|
Colour of solution
|
≤BY7
|
＜BY7
|
|
Copper
|
≤5ppm
|
＜5ppm
|
|
Heavy metals
|
≤10ppm
|
＜10ppm
|
|
Lead
|
≤2ppm
|
＜2ppm
|
|
Iron
|
≤2ppm
|
＜2ppm
|
|
Oxalic acid
|
≤0.2%
|
＜0.2%
|
|
Suphate ash(Residue on ignition)
|
≤0.1%
|
0.05%
|
|
Spcific optical rotation
|
+20.5°- +21.5°
|
+20.9°
|
|
Assay
|
99.0%-100.5%
|
99.9%
|
|
Organic volatile impurities
|
Pass
|
Pass
|
|
Residual Solvents
|
Methanol NMT 3000ppm
|
＜3000ppm
|
|
Conclusion :The above product conforms to BP2005 , USP29,EPV,FCCV
|
||
Member Information
| Zhengzhou Honest Food Co.,Ltd. | |
|---|---|
| Country/Region: | He Nan - China |
| Business Nature: | Manufacturer |
| Phone: | 67770889 |
| Contact: | alan (trader manager) |
| Last Online: | 01 Nov, 2011 |
