1) Appearance: white crystal 2) Solubility:a) Water: high b) Alcohol: low c) Ether, chloroform and other organic solvents: insoluble 3) Taste: sweet . 4) Specific rotation: 52.0 - 53.5o 5) Acidity: 1.2ml (max.) 6) Chloride: 200ppm (max.) 7) Sulfate: 200ppm (max.) 8) Loss on drying: 9.0% (max.) 9) Heavy metal: 20ppm (max.) 10) Iron: 20ppm (max.) 11) Arsenic: 2ppm (max.)