OUR INDUSTRIES
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ASCORBIC ACID CRYSTALLINE POWDER - DFI-743011
Published: 10/04/2019Description
| Appearance | White crystalline powder |
| CAS No. | 50-81-7 |
| BTN | 29 36 27 00 000 |
| Shelf life | 36 Months from production date |
| Formula | C6H8O6 |
| Country of origin | China |
| E number | E300 |
Specification
| Assay | 99 to 100.5% |
| Colour | Clear = < BY7 |
| Identification | Positive reaction |
| pH(2% solution) | 2.4 to 2.8 |
| Heavy metals | Max:10ppm |
| Cadmium | Max:1ppm |
| Sulphated ash | Max:0.1% |
| Arsenic | Max:1ppm |
| Loss on drying | Max:0.4% |
| Melting point | About 190°C |
| Residual solvents | Pass |
| Lead | Max:2ppm |
| Iron Content | Max:2ppm |
| Oxalic Acid | Max:0.2% |
| Specific Optical Rotation | +20.5° + 21.5° |
| Mesh Size | 40 to 80 mesh |
| Mercury | Max:0.1ppm |
| Copper | Max:5ppm |
| Packaging | 25 Kg Cartons |
| pH(5% solution) | 2.1 to 2.6 |
| Impurity C | Max:0.15% |
| Impurity D | Max:0.15% |
| Unspecified Impurity | Max:0.1% |
| Total Impurities | Max:0.2% |
| Impurity E | Max:0.2% |
| Zinc | Max:0.25ppm |
Microbiological
| Total plate count | Max:100cfu/g |
| Total yeasts and moulds | Max:100cfu/g |
| Staphylococcus aureus | Negative |
| Pseudomonas aeruginosa | Negative |
| Salmonella | Negative |
| Escherichia Coli | Negative |
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