If desired, the aqueous medium may contain a small proportion of a water miscible organic solvent such as diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, {HEAD ~ ethylene glycol monomethyl ether}, {TAIL ~ methanol}, ethanol, isopropanol, n butanol, secondary butanol, t butanol, dimethylformamide and N methylpyrrolidone 
If desired , the aqueous medium may contain a small proportion of a water miscible organic solvent such as diethylene glycol monoethyl ether , diethylene glycol monobutyl ether , propylene glycol monomethyl ether , propylene glycol monoethyl ether , { HEAD ~ ethylene glycol monomethyl ether } , { TAIL ~ methanol } , ethanol , isopropanol , n butanol , secondary butanol , t butanol , dimethylformamide and N methylpyrrolidone
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