Identification | 1) IR | Complies |
2) HPLC | Complies | |
Water | ≤0.5% | 0.10% |
Residue on Ignition | ≤0.2% | 0.08% |
3) Residual solvents | Methanol: ≤0.3%
Acetone: ≤0.5% Ethanol: ≤0.5% |
0.12%
0.01% Not detected |
Assay | 99.0~101.0% (calculated on anhydrous
and solvent free basis) |
99.95% |
Conclusion | The batch conforms to USP39 standard requirements |
The use of lac dyes is earlier than the use of resin materials, which are traditionally used in food, medicine, cosmetics, printing and dyeing, and textile industries. The color itself is red or pink, but other colors can be obtained by mordant dyeing.
Packaging:5kg/drum, 10kg/drum,25kg/drum
Shipping:It can be according to the customer’s request
Normal temperature preservation