Types of organic solvents: organic solvents are more types, according to their chemical structure can be divided into 10 categories: ① aromatic hydrocarbons: benzene, toluene, xylene, ② aliphatic hydrocarbons: pentane, hexane, octane, etc. ③ aliphatic hydrocarbon: cyclohexane, cyclohexanone, toluene cyclohexanone, etc. ④ halogenated hydrocarbons: Chlorobenzene, two chlorobenzene, two chloro methane, etc. ⑤ alcohols: methanol, ethanol, isopropyl alcohol and so on; ⑥ ether: ether, propylene oxide, etc. ⑦ ester: methyl acetate, ethyl acetate, propyl acetate, etc. ⑧ ketone: acetone, methyl butanone, methyl isobutyl ketone, etc. ⑨ derivatives: ethylene glycol monomethyl ether, ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, etc. ⑩ other: acetonitrile, pyridine, phenol and so on.
(1) Acidic solvents: this kind of solvent to give the ability of protons stronger than the ability to accept protons, such as formic acid, sulfuric acid and so on.
(2) Alkaline solvents: the ability to accept protons strong solvents, such as ethyl two amine (NH2CH2CH2NH2) and so on.
(3) Amphoteric solvents: That is to give the proton and the ability to accept protons equivalent solvents, such as water, methanol, ethanol and so on. (4) Inert solvents: can not give the proton also can not accept the proton solvent, such as benzene, chloroform and so on.