Experimental studies of instabilities of laminar premixed flames

Ether-capped poly(oxyalkylated) alcohol surfactants having superior grease cleaning abilities and improved spotting/filming benefits are provided. The alcohol surfactants have the formula:wherein R1 is linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having from 1 to 30 carbon atoms; R2 is linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having from 6 to 30 carbon atoms; R3 is H, or a linear aliphatic hydrocarbon radical having from 1 to 4 carbon atoms; x is an integer having an average value from 1 to 40, wherein when x is 2 or greater R3 may be the same or different and k and j are integers having an average value of from 1 to 12; further wherein when x is 15 or greater and R3 is H and methyl, at least four of R3 are methyl, further wherein when x is 15 or greater and R3 includes H and from 1 to 3 methyl groups, then at least one R3 is ethyl, propyl or butyl, further wherein R2 can optionally be alkoxylated, wherein said alkoxy is selected from ethoxy, propoxy, butyloxy and mixtures thereof.