The Chemical Educator
ISSN: 1430-4171 (electronic version)
Abstract Volume 18
(2013) pp 088-095
Optical Rotation Measurement with a Novel Polarimeter
John C. O’C. YoungDepartment of Chemistry, Saint Mary’s University, Halifax, Nova Scotia, Canada, B3H 3C3, firstname.lastname@example.org Received October 26, 2012.
Accepted March 16, 2013.
Published: 3 May 2013
Abstract. The specific rotational angle of plane polarized light produced by optically active substances in solution serves as an aid to their identification and to the measurement of their concentration and purity, and may for example be used to investigate the kinetics of reactions involving such substances. The use of a novel, low-cost, moderately sensitive polarimeter is illustrated for determining the specific rotational angle of sucrose and the rate and order of its hydrolysis into fructose and glucose in acidic aqueous solution.
Key Words: Laboratories and Demonstrations; physical chemistry
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