Asphalt Asphalt role belongs to hydrophobic material, it is impervious to water, almost insoluble in water, acetone, ether, dilute ethanol, dissolved in carbon disulfide, carbon tetrachloride, sodium hydroxide bitumen products. Chinese name English name Asphalt Bitumen, AsphaltCAS registration number 8052-42-4EINECS Accession No. 232-490-9 melting point of 485 boiling point <470 ℃ water soluble insoluble in water density 1.15-1.25 appearance of a semi-solid or liquid state flash point of 204.4 describe health risk Hazard: moderately toxic sources as coal and oil composition content of asphaltenes and resins 99.48% lower explosive limit 30 (g / cc) conductivity insulator (room temperature) (3) oxidation method: at a high temperature to a range of vacuum residue or deoiled asphalt blowing air, its composition changes and performance of asphalt, the resulting product is called oxidized asphalt. Vacuum residue at high temperatures and blowing air action will produce vaporized asphalt manufacturers, and it will happen dehydrogenation, oxidation, and a series of condensation polymerization reaction. This is a very complex process of a comprehensive response to multi-component interaction, rather than just the oxidation reaction, but called oxidation and oxidative asphalt customary, also known as air-blown method and air blown asphalt. Cheap asphalt | asphalt | Chemical offers three levels by the Jinan Chemical Co., Ltd. three levels. Jinan three ping Chemical Co. (www.sanpinghuagong.com) strong, credible, in Jinan, Shandong chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead three levels of chemical into the brilliant and you work for a better future!