Phenol was first recovered from coal tar, currently mostly synthetic methods. To the mid-1960s, phenol, ethyl acetate, began to use cumene production of phenol and acetone technical route, accounting for half of the world has grown phenol production, currently used in the process of production of phenol accounted for more than 90% of the world production of phenol . Other production processes include toluene chloride, chlorobenzene law, sulfonation. There are two methods of cumene and sulfonated production methods. Because sulfonation consume large amounts of sulfuric acid and caustic soda, our country will retain only a small number of devices sulfonated law gradually cumene production based. Phenol: Health Hazard edit Bisphenol A is widely used in life, as people often come into contact with the substance. Therefore phenol manufacturers, its security issues become the focus of attention of the public, but its use is controversial. Safety study and controversy at home and abroad toxicity studies of bisphenol A major investigation and experimental animal studies, relatively few epidemiological investigation on the toxic effects of bisphenol A and human experimental study reported. Data show that phenol, bisphenol A is of low toxicity chemicals. Animal experiments have found that bisphenol A simulation of the effect of estrogen phenol medicine, even low doses can make animals female puberty, decreased sperm count, prostate growth and so on. In addition, there are indications of bisphenol A has some embryo toxicity and teratogenicity, can significantly increase the animal ovarian cancer, prostate cancer, leukemia and other cancer. Meanwhile, studies have shown that bisphenol A is associated with asthma in mice, preliminary human trials show pregnant women in early pregnancy affected by Bisphenol A may cause infection in infants asthma. Phenol acetate | Jiaozhou phenol | Wei Wei Connaught Chemical provided by Qingdao Sino Chemical Co. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) strong, credible, in Qingdao, Shandong and other chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wei Connaught Chemical and you hand into the brilliant, for a better future!