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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > March  >
In the Laboratory
A Simple Laboratory-Constructed Automatic Titrator
Kurt L. Headrick, Terry K. Davies, and Aaron N. Haegele
Department of Chemistry, University of Victoria, Victoria, BC V8W 3V6, Canada
Cover
March 2000
Vol. 77 No. 3
p. 389
Abstract
The construction of a simple automatic titrator is described. The buret is replaced with a metering pump to provide a constant flow of titrant. The output from the pH meter is sent to a recorder via a laboratory-constructed differentiator, allowing the results to be plotted as potential versus time, first or second derivative. The pump and recorder are plugged in to a standard power bar; turning the power bar on and off starts and stops the titration. Results obtained with the automatic titrator for the titration of sodium carbonate with HCl are as good as or better than those obtained with manual titration or commercial autotitrators.
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*  Citation
 Headrick, Kurt L.; Davies, Terry K.; Haegele, Aaron N. J. Chem. Educ. 2000 77 389.
*  Keywords
 Analytical Chemistry; Instrumental Methods; AcidÐBase Chemistry; Laboratory Equipment / Apparatus; Quantitative Analysis
*  History
 Created:
Last Updated:		 February 14, 2000
August 31, 2005
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