Preferred water-soluble organic solvents include alkyl alcohols having from 1 to 4 carbon atoms such as methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, and isobutyl alcohol; amides such as dimethyl formamide and dimethyl acetamide; ketones or ketone alcohols such as acetone and diacetone alcohol; ethers such as tetrahydrofuran