Accession Number : AD0460679

Title :   ELECTROMETRIC METHODS OF END-POINT INDICATION FOR THE ARGENTOMETRIC TITRATION OF MICROGRAM AMOUNTS OF CHLORIDE.

Descriptive Note : Technical rept.,

Corporate Author : ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (UNITED KINGDOM)

Personal Author(s) : Webb, J. R.

Report Date : JAN 1965

Pagination or Media Count : 22

Abstract : Potentiometry, a polarisation end-point method and differential electrolytic potentiometry have been investigated for sensitivity of endpoint indication for the routine argentometric determination of up to 50 micrograms of chloride ion. A small volume and high acetone concentration were necessary for optimum indication by the three methods. Potentiometry and differential electrolytic potentiometry required ca 30 min for a titration; polarisation end-point required ca 10 min. End-points were clearly indicated without plotting curves to =0.07 microgram with 0.004 N silver nitrate as titrant. (Author)

Descriptors :   (*VOLUMETRIC ANALYSIS, CHLORIDES), (*CHLORIDES, DETERMINATION), SENSITIVITY, SILVER, SILVER COMPOUNDS, ELECTRODES, POLARIZATION.

Distribution Statement : APPROVED FOR PUBLIC RELEASE