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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Roger on April 26, 2005, 09:08:34 PM

Title: Lucas Test and Diols
Post by: Roger on April 26, 2005, 09:08:34 PM

Let's say you had compound with both a primary and secondary alcohol such as 1,2-propanediol.  Would such a compoud pass the Lucas Test?  Would you see an oily material as an emulsion/separate layer?  And if so, how long would this reaction take?

Title: Re:Lucas Test and Diols
Post by: Jimena on May 07, 2005, 04:48:51 PM

Well, I know that the Lucas test identifies a secondary alcohol by the formation of cloudiness within 2-5minutes or through gentle heating because it's a slow reaction.  
Primary alcohols show no reaction, only a clear solution.
I hope this helps...