General Information:
Type: Food Additives
Origin: China
CAS No.: 50-81-7
AUCO No.: 231
Packing: 25kg carton
Specification:
Items | Standard |
Characteristics | White or almost White crystals Crystalline Powder |
Identification | Positive Reaction |
Melting point | About 190ºC |
PH(5% water in solution) | 2.1-2.6 |
PH(2% water in solution) | 2.4-2.8 |
Clarity of Solution | Clear |
Colour of Solution | ≤ BY7 |
Copper | ≤5ppm |
Heavy Metals | ≤10ppm |
Mer | ≤0.1mg/kg |
Lead | ≤2 mg/kg |
Iron | ≤2ppm |
Arsen | ≤3ppm |
Cad(Cd) | <1mg/kg |
Oxalic Acid | ≤0.2% |
Impurity E | ≤0.2% |
Loss on Drying | ≤0.4% |
Sulphate Ash(Residue On Ignition) | ≤0.1% |
Specific Optical Rotation | +20.5 °~ +21.5 ° |
Residual Solvents | Pass |
Assay | 99.0%- 100.5% |