| Model: | 001 |
|---|---|
| Brand: | un |
| Origin: | Made In China |
| Category: | Chemicals / Food Additives |
| Label: | ascorbic acid , vitamin C , VC |
| Price: |
US $2.5
/ kg
|
| Min. Order: | 25 kg |
| Live Chat: | Last Online:01 Sep, 2014 |
Food grade ascorbic acid
1 White crystal powder,40~80 mesh,100~150 mesh
2 B/USP/EP/FCC FOOD GRADE
Specifications:
|
Items |
Specifications |
|
Description |
White Powder or Grains |
|
Assay |
99.0%-100% min |
|
Loss on drying |
≤0.4% |
|
Residue on ignition |
≤0.1% |
|
Sulphate ash |
≤0.1% |
|
Specific rotation |
+20.5º-+21.5 º |
|
Ph(with2%water solution) |
2.4-2.8 |
|
Ph(with5%water solution) |
2.1-2.6 |
|
Melting range |
about 190ºC |
|
Heavy metals |
≤3ppm |
|
Iron |
≤2ppm |
|
Copper |
≤5ppm |
|
Oxalic acid |
≤0.2% |
|
Arsenic |
≤1ppm |
|
Lead |
≤2ppm |
|
Cadmium |
≤1ppm |
|
Mercury |
≤1ppm |
|
Related substances |
impurityC ≤0.15% |
|
total plate count |
≤1,000cfu/g |
|
residual solvents |
≤3000ppm |