1. Chemical Name : Citric Acid Monohydrate
2. Molecular Formula : C6H8O7•H2O
4. CAS : 5949-29-1
5. Einecs : 201-069-1
6. Character : White or almost white, crystalline powder, colourless crystals or granules. Odorless, has a strongly acid taste. Effloresces in dry air. Very soluble in water, freely soluble in ethanol.
7. Usage: Food & Drinks: Adds sourness (E330) to sodas, candies, and preserves, and works as a pH balancer and preservative; Medicine: Helps make effervescent tablets (like vitamin C) and stabilizes syrups; Beauty: Adjusts pH in skincare and haircare, and gently exfoliates in AHAs; Industry: Cleans metals, buffers in biotech (PCR kits), and treats water.
8. Packing : It is packed with polyethylene bag as inner layer and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
9. Storage and Transport : It should be stored in a dry and ventilating warehouse, be cautious to keep away from moisture and hot, unloaded with care so as to avoid the damage. Furthermore, it should be stored separately from poisonous substances.
10. Specification :
| Test Item | Standard (BP/USP/FCC/E330) |
| Sensory index | Colourless crystals or granules. Odorless, has a strongly acid taste. |
| Identification | Confirm |
| Appearance of solution | Confirm |
| Assay | 99.5 ~ 100.5% |
| Moisture | 7.5~8.8% |
| Readily Carbonisable Substances | Confirm |
| Sulphated Ash (Residue on Ignition) | ≤ 0.05% |
| Sulfate | ≤ 150mg/kg |
| Oxalate | ≤ 100mg/kg |
| Lead (Pb) | ≤ 0.5mg/kg |
| Arsenic (As) | ≤ 1mg/kg |