Useful solvents can comprise water, {TAIL ~ alcohols} such as methanol, ethanol, propanol and isopropanol, N methylpyrrolidone, aromatics such as benzene, toluene and xylene, ketones such as acetone, ethers such as ethyl ether, esters such as ethyl acetate or {HEAD ~ mixtures} thereof 
Useful solvents can comprise water , { TAIL ~ alcohols } such as methanol , ethanol , propanol and isopropanol , N methylpyrrolidone , aromatics such as benzene , toluene and xylene , ketones such as acetone , ethers such as ethyl ether , esters such as ethyl acetate or { HEAD ~ mixtures } thereof
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