Comments on: Optical Purity and Enantiomeric Excess

By: RACEMIC MODIFICATION (RACEMATE || RACEMIC MIXTURE): SEPARATION OF ENANTIOMERS-RESOLUTION – My chemistry blog

Sun, 22 Oct 2023 18:12:58 +0000

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By: Fred S Kakulu

Fred S Kakulu — Thu, 02 Feb 2023 09:12:33 +0000

You are good with a variety of concepts

By: James Ashenhurst

James Ashenhurst — Thu, 14 Nov 2019 19:48:09 +0000

In reply to Dr. Swapnil Patil. Yes, thank you - that will be fixed shortly.

By: Dr. Swapnil Patil

Dr. Swapnil Patil — Tue, 22 Oct 2019 07:50:50 +0000

Hi James, I always admire your website, in fact, I do recommend this to my students as well. About the "The Formula For Optical Purity" you have mentioned Optical purity or % ee = |observed rotation| / |specific rotation of pure| However, I think it may be: Optical purity or % ee = |observed specific rotation| / |specific rotation of pure| Some times students may get confused with observed rotation and observed specific rotation.

By: lontum rodrique

lontum rodrique — Tue, 28 Aug 2018 07:40:07 +0000

sir, still confuse in the above explanation whether ee is 25 or 75

By: Dr.R.Vijayalakshmi

Dr.R.Vijayalakshmi — Sat, 21 Apr 2018 15:15:49 +0000

By simply adding equation 1 and 2, one can get % of d enantiomer = 150/2 =75. Substituting this in any one of the equations will give % of d enantiomer to be 25.

By: sahani philipo

sahani philipo — Wed, 27 Dec 2017 09:17:52 +0000

problem in identifying the compound which is in excess in the racemic mixture when the %ee is 26.38, in such away that when you some the racemate do not give 100% help pls im in trouble with this confusion.