zhazpa Posted July 21, 2006 Share Posted July 21, 2006 i've heard somewhere that ethanol can be used to test for lipids...so what exactly will happen if i added ethanol to oil Link to comment Share on other sites More sharing options...
ecoli Posted July 22, 2006 Share Posted July 22, 2006 what type of oil, it's a large class of molecules. Link to comment Share on other sites More sharing options...
chuinhen Posted July 23, 2006 Share Posted July 23, 2006 shake some of the test sample with about 4 cm³ of ethanol. Decant the liquid into a test tube of water, leaving any undissolved substances behind. If there are lipids dissolved in the ethanol, they will precipitate in the water, forming a cloudy white emulsion. THis can be explained using the partition Law ! lipid is more soluble in ethanol because they form hydropic interaction ! Link to comment Share on other sites More sharing options...
zhazpa Posted August 6, 2006 Author Share Posted August 6, 2006 thanks so much!!! Link to comment Share on other sites More sharing options...
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