Hydroquinone(HQ) Technical grade; Used in Generally for photograph, dye, pesticide rubber, chemical industry, medicine, < Hydroquinone(HQ) Technical grade;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. Quality standard1, Photo-taking grade(GB10552-89 ...