Complaint
| Item | Standards |
| Solubility | Sparingly soluble in water,freely soluble in alcohol, very slightly soluble in ether and in methylene chloride |
| Identification | Conforms |
| Melting range | 168~172 °C |
| Chloride | Not more than 0.014% |
| Sulphate | Not more than 0.02% |
| Sulfide | No coloration or spotting occurs |
| Free P-aminophenol | Not more than 0.005% |
| Related substance | Conforms |
| Loss on drying | Not more then 0.5% |
| Residue on ignition | Not more then 0.1% |
| OVI | Meets the requirements |
| Assay | 99.0~101.0% |
| Heavy metals | Not more than 0.001% |
| Conclusion | The above material passes as per BP2002&USP31 |
Henan Sinowin Chemical Co.,Ltd. is a large comprehensive enterprise, it is engaged in the R & D, production,sales trade for chemical industry. We have been in this line for almost 20 years. Our facilities are world advanced, like the Germany importedproduction line, Modern aseptic production workshop,fully automatic packing machine, stereos/copic warehouse and advanced lab. So quality goods, competitive price,prompt delivery, stable supply and good after- sales service can be guaranteed. Nowadays, our business scope has been extended to more than 50 types in 6 series,it is water treatment chemical, coating, solvent, detergent chemicals , PVC additives and Food additives). Sinowin Chemical materials has been popularly selling worldwidely and the sionwin brand has become a shining business card for our company.
