Growth Rate of Barium Chromate Crystals.

Abstract

The crystallisation of barium chromate was investigated with theobjective of producing crystals of 10-4m in size instead of thecommercially available size of 2 x 10--6m. This was achieved by themethod of controlled homogeneous precipitation from solutions oflow pH. However, this was not an optimum operation. Two basicrequirements were established for the quantitative study of thekinetics of barium chromate crystallisation.

The first requirement was a knowledge of the overall solubility of barium chromate in acid solutions at different temperatures. The experimental results showed that it is possible to increase the overall solubility by ∼3 orders of magnitude to ∼20g/dm³ of solution...

Date of Award	Dec 1979
Original language	English
Awarding Institution	Aston University