Xylene (dimethylbenzene) as a colorless transparent liquid; two hydrogens on a benzene ring is substituted methyl product, the presence of o-, m-, three isomers, industrially xylene quotes, meaning that the hetero-xylene configuration mixture. Xylene with a pungent odor, flammable xylene wholesale, and ethanol, chloroform or ether can be any mix, insoluble in water. A boiling point of 137 ~ 140 ℃. Xylene and low toxicity, the US Conference of Governmental Industrial Hygienists (ACGIH) would be classified as Class A4, namely the lack of substance to humans, animals, evidence of carcinogenicity. Xylene contaminated mainly from synthetic fibers, plastics, fuel, rubber, and various paint additives, and various adhesives, waterproof materials, but also the combustion gas from the fuel and tobacco. 2. Brushing toluene, xylene as solvent xylene supply anti-corrosion coatings in a closed-type tank worse, because no good ventilation, a large number of toluene, xylene vapors accumulate, workers can work acute poisoning. Knitters have seen reported a complete printing shop windows tight with lotion wash water containing toluene strong desktop printing caused seven workers acute toluene poisoning. Generally, toluene, xylene air concentration 200 ~ 300 mg / cubic meter inhalation can produce mild symptoms 8h xylene, 3.76g / cubic meter 1h inhalation concentration that acute poisoning, under 71.4g / m concentration for several minutes Inhalation rapid coma, and death. 3. Percutaneous or wrongly induced acute poisoning, rarely reported. Xylene quotes, CKS quality assurance (certified), southern yellow xylene provided by Jinan Chemical Co., Chiang Kai-shek. CKS Jinan Chemical Co. (www.zhongzhenghuagong.com) Shandong Jinan, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the chemical industry leader Chiang Kai-shek with the staff warmly welcome all inquiries negotiations to create a better future for CKS chemicals.