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
|