Journal of the American Oil Chemists’ Society

, Volume 56, Issue 9, pp 878–879 | Cite as

Computer-controlled potentiometric titration system for rapid determination of sulfuric and organo-sulfonic acids in detergent intermediates

  • S. Yamaguchi
  • T. Kusuyama


A potentiometric titration system controlled by a desk-top computer is set up for process control analysis and applied to rapid determination of sulfuric and organo-sulfonic acids in detergent intermediates. The computer takes the weight of sample from an automatic top-loading electronic balance, stores it, controls stepwise additions of titrant, detects two end points, and finally prints out the acid contents in weight per cent. During the titration, the rate of titrant additions is adjusted to electrode response time by frequent monitoring of an electrode potential with the computer. Typical titration time is about 60–70 seconds per sample, and the precision of the determination was satisfactory.


Sulfamic Acid Titration Point Titration System Titrant Addition Potentiometric Titration Method 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Yoshihara, M., H. ishiwatari, and H. Konishi, Yukagaku 11: 37 (1962).Google Scholar
  2. 2.
    Carasick, W., M. Mausner, and G. Spiegelman, Soap Chem. Spec., 43(5):106 (1967).Google Scholar
  3. 3.
    Yamaguchi, S., S. Nukui, M. Kubo, and K. Konishi, JAOCS 55: 359 (1978).CrossRefGoogle Scholar
  4. 4.
    Keller, H.J., and W. Richter, Metrohm Bull. 2: 174 (1971).Google Scholar
  5. 5.
    Wolf, S., Z. Anal. Chem. 250: 13 (1970).CrossRefGoogle Scholar
  6. 6.
    Fortuin, J.M.H., Anal. Chim. Acta 24: 175 (1961).CrossRefGoogle Scholar

Copyright information

© The American Oil Chemists’ Society 1979

Authors and Affiliations

  • S. Yamaguchi
    • 1
  • T. Kusuyama
    • 1
  1. 1.Wakayama Research LabsKao Soap Co., Ltd.Wakayama-shiJapan

Personalised recommendations