Product Name: Ascorbic Acid
Application: Nutritional supplements; Antioxidants; Color agent; Enhancing resistance to infectious diseases. It also can be used for beer, fermented flour products, carbonated drinks, tea drinks, juice drinks, milk beverages, milk candy, canned fruit jelly, broth, children's cereal preparations, meat products and baking products.
Product Name: Ascorbic Acid
CAS No.: 50-81-7
Molecular Formula: C6H8O6
Packaging: 25kgs/ carton
Standard: BP 2008/USP31/E300/FCCV
Specification
|
Item |
Specification |
Result | |
|
Characteristics |
White or almost crystals Crystalline Powder |
Complies | |
|
Indentification |
Positive Reaction |
Positive | |
|
Melting Point |
About 190ºC |
191.1ºC | |
|
Ph(5% solution) |
2.1~2.6 |
2.4 | |
|
Ph(2% solution) |
2.4~2.8 |
2.6 | |
|
Clarity Of Solution |
Clear |
Clear | |
|
Loss on drying |
≤0.15% |
0.10% | |
|
Arsenic |
≤3ppm |
<3ppm | |
|
Lead |
≤2ppm |
<2ppm | |
|
Copper |
≤5ppm |
<5ppm | |
|
Heavy Metals |
≤10ppm |
<10ppm | |
|
Iron |
≤2ppm |
<2ppm | |
|
Cadmium |
≤1ppm |
<1ppm | |
|
Mercury |
≤0.1ppm |
<0.1ppm | |
|
Zinc |
≤25ppm |
<25ppm | |
|
Oxalic Acid |
≤0.2% |
<0.2% | |
|
Sulphate Ash(Residue on Ignition) |
≤0.1% |
<0.1% | |
|
Specific Optical Rotation |
+20.5º~+21.5º |
+20.85º | |
|
Organic Volatile Impurities |
Pass |
Pass | |
|
Particle Size |
40~80 mesh |
Pass | |
|
Assay |
99.0%~100.5% |
99.56% | |
|
Related substance |
Impurity C≤0.15% |
Complies | |
|
Impurity D≤0.15% |
Complies | ||
|
Other unspecified impurities≤0.10% |
Complies | ||
|
Total impurities≤0.2% |
Complies | ||
|
Total plate count |
≤1000cfu/g |
Complies | |
|
Yeast&mold |
≤100cfu/g |
Complies | |
|
Staphylococcus aureus |
Negative |
Complies | |
|
Salmonella |
Negative |
Complies | |
|
E.coli |
Negative |
Complies | |
Product Name: Ascorbic Acid (coated)
CAS No.: 50-81-7
Molecular Formula: C6H8O6
Packaging: 25kgs/ carton
Standard: BP2007/USP31
Specification
|
Item |
Specification |
|
Characteristics |
White or almost white powder |
|
Identification |
Positive reaction |
|
Melting Point |
About 190℃ |
|
PH |
2.1~2.6 |
|
Clarity of solution |
clear |
|
Color of solution |
≤BY7 |
|
Copper |
≤5ppm |
|
Heavy Metals (lead) |
≤2ppm |
|
Iron |
≤2ppm |
|
Arsenic(As) |
≤3ppm |
|
Oxalic Acid |
≤0.2% |
|
Sulphate ash (Reside on ignition) |
≤0.1% |
|
Specific optical rotation |
+20.5~+21.5° |
|
Assay |
99.0%~100.5% |
|
Organic volatile impurities |
pass |
|
Residual Solvents |
Methanol: NMT 3000ppm |