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nature : formerly sulfur (Miscellaneous) - mao. The most simple five sulfur heterocyclic compounds. A colorless liquid. A special smell. Coal tar is the separation of the benzene impurities. There are also certain crude oil. Density 1.0644. -38.30 ° C melting point. Boiling Point 84.12 ° C Do not dissolve in water, soluble in alcohol, ether, benzene and sulfuric acid. The role of concentrated sulfuric acid with pine has a blue film role, it is a test of thiophene methods. Many nature as benzene, benzene and lively than it. So with a small amount of benzene can thiophene with concentrated sulfuric acid together oscillation, thiophene was sulfonated and concentrated sulfuric acid soluble, it is not prepared thiophene benzene commonly used methods. The system for drugs and other plasticizers. May sodium succinate with three phosphorus pentasulfide or phosphorus pentasulfide role in the system.
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