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| - Examples of suitable solvents include: hydrocarbons, such as benzene, toluene, xylene, hexane or heptane; ethers, such as diethyl ether, dioxane or tetrahydrofuran; alcohols, such as methanol, ethanol or isopropanol; organic acids, such as formic acid, acetic acid or propionic acid; amides such dimethylformamide, dimethylacetamide or hexamethylphosphoric triamide; and mixtures of any two or more o
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