The determination of water in organic liquids

Abstract

The modified Karl Fischer method, described in a previous report by Archer and Jeater, has been developed further. It has been established that the main cause of end-point drift is pick-up of water from the surroundings. A totally enclosed titration cell that prevents pick-up of water has been devised. A complete apparatus incorporating the cell is described. Water can be determined in samples containing amounts from several per cent. down to a few parts per million with this apparatus.