| http://www.w3.org/ns/prov#value | - dimethyl ether or diethylene glycol dimethyl ether, hydrocarbons such as benzene, xylene, toluene, hexane, cyclohexane or petroleum fractions, or other solvents such as nitromethane, 1,2-dimethoxyethane, dimethyl sulphoxide or pyridine, those preferred are toluene or xylene, preferably in a temperature range fr
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