Determination of the Equilibrium Constant for the Acetaldehyde-Bisulfite Addition Compound

Author

Mark B. Richard, Union College - Schenectady, NY

Date of Award

6-1985

Document Type

Open Access

Degree Name

Bachelor of Science

Department

Chemistry

Language

English

Abstract

Synthesis of the addition compounds of formaldehyde, acetaldehyde, acetone, and propionaldehyde with sodium bisulfite was achieved using the method of Stewart and Donnally. Recognition of a water comtamination led to a method for determining purity using the integrations from NMR spectrometry. An equilibrium constant for the acetaldehyde-bisulfite addition compound was determined using the method of Dasgupta. A value of 6.3 x 10-5 was determined at a ph of 4.7. This value correlates well in magnitude when compared to the value of 1.56 x 10-5 for the formaldehyde-bisulfite addition compound at pH 5.0 determined by Dasgupta and also with Stewart and Donnally's value of 1.06 x 10-4 determined for the benzaldehyde-bisulfite addition compound at pH 4.77.

Recommended Citation

Richard, Mark B., "Determination of the Equilibrium Constant for the Acetaldehyde-Bisulfite Addition Compound" (1985). Honors Theses. 1904.
https://digitalworks.union.edu/theses/1904