Customization: | Available |
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CAS No.: | 50-81-7 |
Formula: | C6h8o6 |
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1.Product Name: Ascorbic acid(vitamin c)/Bulk Pure Ascorbic Acid Vitamin C Powder
2.CAS NO:50-81-7
3.Purity:99min
4.Appearance: white crystal powder
5.Application: Vitamin C is widely used in many fields such as food , beverage, breeding and forage additives.
6.Shelf life:2 years
7.Specification: USP32/BP2009/FCC
Product Name | Vitamin C(ascorbic acid) | ||
Packing: | 25kg/carton | Mfg Date | 2019-5-22 |
Quantity | 18000kg | Report Date | 2019-5-27 |
Batch No. | 190522-C02 | Expiry Date | 2022-5-21 |
Item | Specification | Results | |
Characters | White or almost white,crystalline powder or colourless crystals | white,crystalline powder | |
Identification | Correspond | Corresponds | |
Melting point | 189ºC~193ºC | 190ºC | |
PH(5%,W/V) | 2.1~2.6 | 2.31 | |
PH(2%,W/V) | 2.4~2.8 | 2.49 | |
Specific optical rotation | +20.5°~+21.5° | +20.9° | |
Apperance of solution | Solution s is clear and not more intensely cloured than reference solution BY7 | Up to standard |
|
Heavy Metals(ppm) | ≤10 | <10 | |
Assay(%) | 99.0~100.5 | 99.5 | |
Copper(ppm) | ≤10 | 0.19 | |
Iron(ppm) | ≤2 | 0.18 | |
Mercury | ≤1 | 0.01 | |
Arsenic | ≤3 | <3 | |
Lead | ≤2 | 0.03 | |
Oxalic acid(impurity E)% | ≤0.2 | <0.2 | |
Loss on drying% | ≤0.4 | 0.03 | |
Sulphated ash(%) | ≤0.1 | 0.02 | |
Related substances | |||
Impurity C(%) | ≤0.15 | <0.01 | |
Impurity D(%) | ≤0.15 | <0.01 | |
Unspecified Impurity | ≤0.1 | ND | |
Total(2%) | ≤0.2 | ND | |
Residual solvents | |||
Methanol(ppm) | ≤3000 | 77 | |
Microbiological examination | |||
TAMC(cfu/g) | 1000 | Corresponds | |
TYMC(cfu/g) | 100 | Corresponds | |
E.coli | Absence | Corresponds | |
40mesh | 96.4% | ||
80mesh | 59.2% | ||
100mesh | 50.1% | ||
Conclusion | The product conforms to the standard of BP2014/EP9/USP41/E300/FCC10 |