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