One of the largest providing company in China
1. packing: 25KG/drum
2. quality conforms to BP/USP
3. production output: 1500-1700mt/month
4. characters: white crystalline powder
5. melting range:168-172 C
6. chloride: less than 0.014%
7. sulfate: less than 0.02%
8. sulfide: complies
9. heavy metals: less than 0.001%
10. free p-aminophenol: less than 0.005%
11. chloracetanilide: less than 0.001%
12. readily carbonizable substances: complies
13. organic volatile impurities: complies
14. water: less than 0.5%
15. residueon ignition: less than 0.1%
16. assay: 99.0-101.0%