CAS no.: 77-92-9;
Quality Standard: BP93, BP98, USP23, USP24, E330 and FCCIV, GB1987-2007

Technical Specifications of Citric Acid Anhydrous :
Character: Colorless crystal or white powder;
Solubility Identification: 20% aqueous solution is clear;
Content: 99.5%min.
Water Content:0.5% max.
Calcium Salt: 100ppm max.
Iron Salt: 5ppm max.
Arsenic: 0.5ppm max.
Heavy Metal: 5ppm max.
Oxalate Salt: 100ppm max.
Chloride: 15ppm max.
Sulfate Salt: 100ppm max.
Readily Carbonizable Substance: lighter than standard
Sulfuric Acid Ash: 0.04% max.
Lead: 2ppm max.