| http://www.w3.org/ns/prov#value | - Solvents which may be used include aromatic hydrocarbons such as benzene, toluene and the like; ethers such as tetrahydrofuran, dioxane, diethyl ether and the like; halogenated hydrocarbons such as dichloromethane, chloroform and the like; N,N-dimethylformamide; and a mixture thereof.
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