Ascorbic Acid Crystalline Powder
Product Specifications
DFI-633048
DFI-633048
| Description | |
|---|---|
| Appearance: | White or almost white, crystals or crystalline powder |
| CAS No.: | 50-81-7 |
| Chemical name: | (5R)-5-[(1S)-1, 2-dihydroxyethyl]-3, 4-dihydroxyfuran-2(5H)-one |
| Country of origin: | China |
| Description: | Ascorbic Acid is a practically odourless powder with a strong acid taste. It melts at about 190°C with decomposition |
| Formula: | C6H8O6 |
| Molecular weight: | 176.1 |
| Packaging: | 25kg Carton with aluminium foil bag |
| Shelf life: | 48 months from the date of manufacture in the unopened original container. On prolonged storage a slight yellow discolouration may occur which, however does not affect the biological activity |
| Storage: | Ascorbic Acid is somewhat sensitive to air, heat and humidity. The product should be stored in well-closed containers, free from contact with metal and protected from moisture and light |
| Synonyms: | L- Ascorbic acid, Vitamin C |
| Uses: | For the enrichment of liquid feed preparations. For the enrichment, standardisation of stabilisation of dry food preparations and drinks; for the improvement of the baking qualities of flour; as an agent in dry mixes for curing meat. For solid and liquid multivitamin and mono-vitamin preparations |
| Specifications | |
| Arsenic: | Max: 1ppm, mg/kg |
| Assay: | 99 to 100.5% |
| Cadmium: | Max: 0.5ppm, mg/kg |
| Clarity & Colour of Solution: | Clear Max BY7 |
| Copper: | Max: 3ppm, mg/kg |
| Heavy metals: | Max: 3ppm, mg/kg |
| Identification A: | Positive |
| Identification B: | IR |
| Identification D: | Max: 0.15% |
| Impurity C: | Max: 0.15% |
| Iron (Fe): | Max: 2ppm, mg/kg |
| Lead: | Max: 0.5ppm, mg/kg |
| Loss on drying: | Max: 0.1% |
| Melting point: | 190 to 192°C |
| Mercury: | Max: 0.5ppm, mg/kg |
| Oxalic Acid: | Max: 0.2% |
| pH: | 2.2 to 2.5 |
| pH: | 2.4 to 2.8 |
| Reporting Threshold: | Max: 0.05% |
| Residual solvents: | Max: 250ppm, mg/kg |
| Residue on ignition: | Max: 0.1% |
| Solubility: | Ascorbic Acid is freely soluble in water, sparingly soluble in ethanol, insoluble in ether |
| Specific Optical Rotation: | +20.5° ~ +21.5 ° |
| Total impurities: | Max: 0.2% |
| Unspecified Impurity: | Max: 0.1% |
| Microbiological | |
| Escherichia Coli: | Absent in 1g |
| Salmonella: | Absent in 25g |
| Staphylococcus aureus: | Absent in 25g |
| Total plate count: | Max: 1000cfu/g |
| Yeasts & Moulds: | Max: 100cfu/g |
Published Date: 2026-01-20 14:57:34