联系人 Ms. He
Majiadian, Yichang, Hubei
Product Grade: Photo-taking grade and technical grade. Use: Can be used as intermediates of polymer, monomer inhibitor, dyes and auxiliary; as antioxidant in food and medicine industry; as anti coagulant for gas; developer for film, photos and X-ray film. Packing: In PP woven bags with Kraft paper bag in the middle and two-ply inner PE bags. N.W.:*5kg per bag. Quality standard 1, Photo-taking grade(GB*******9) Index items Index(%) Appearance White needle crystal Hydroquinone(HOC6H4OH) content *9.0~**1.0 Melting point **1°C~**5°C Solubility Qualified Residue on ignition⤠0.*5 Heavy Metal(based on Pb)⤠0.**2 Iron(Fe) ⤠0.**2 2, Technical grade Index items Index(%) Appearance Grey or yellowish powdery crystal Hydroquinone(HOC6H4OH) content â¥*9 Melting point â¥**9.5 Residue on ignition â¤0.3
