【CAS】77-92-9 Molecular formula:C6H8O7 Relative molecular mass:192.122
Structural formula:
一．Product Property：
White Crystalline Powders, Colorless Crystals or Granules
二．Quality Index:
| Parameter | Unit | Specification (Food Grade) |
| Appearance | — | Colorless crystals/white powder |
| Assay (C₆H₈O₇) | % (w/w) | ≥ 99.5 |
| Moisture | % (w/w) | ≤ 0.5 |
| Sulfate (as SO₄) | % (w/w) | ≤ 0.01 |
| Oxalate (as C₂O₄) | % (w/w) | ≤ 0.01 |
| Residue on Ignition | % (w/w) | ≤ 0.05 |
| Heavy Metals (as Pb) | mg/kg | ≤ 5 |
| Arsenic (As) | mg/kg | ≤ 1 |
| Chloride (as Cl) | % (w/w) | ≤ 0.005 |
| Iron (Fe) | mg/kg | ≤ 10 |
| Bacterial Count | CFU/g | ≤ 1000 |
| Yeast & Mold | CFU/g | ≤ 50 |
三．Application scope and Usage：
Citric Acid is mainly used as acidulant, flavoring agent, preservative and antistaling agent in food and beverage industry, it is also used as antioxidant, plasticizer and detergent in chemical, cosmetics and cleaning industries.
四．Package and Storage：
25kg net composite paper-plastic bag or 3-ply kraft paper bag with PE liner,Form-Fill-Seal heavy packaging PE bags；500kg or 1000kg net PP woven Jumbo bag with PE liner.
kept in a clean,dry,well-ventilated place
