High purity  Cas 92-52-4  Biphenyl Diphenyl

Biphenyl is an important organic raw material, widely used in medicine, pesticides, dyes, liquid crystal materials and other fields. It can be used to synthesize plasticizers and preservatives, and can also be used to make fuels, engineering plastics and high energy fuels. Biphenyls are found in coal tar, crude oil and natural gas. The preparation methods of biphenyl include chemical synthesis of biphenyl by benzene pyrolysis and separation and extraction of biphenyl by various coal tar fractions. The mass fraction of biphenyl in coal tar is 0.20%-0.40%, coal tar extraction method and chemical synthesis method coexist. Biphenyl is flammable, in high temperature, open fire, oxidant combustion danger, should be stored in a cool, ventilated warehouse away from fire, heat source, and oxidant, strong acid substances stored separately, light unloading, keep the package intact.