Predicting and Preventing Flow Accelerated Corrosion in Nuclear Power Plant

Figure 15

Typical equipment for solubility measurements (after [53]) and possible problems. Typical potential problems might include (1) fine particles passing through filters, (2) fine grain size and surface energy effects, (3) purity of materials, and (4) corrosion of equipment influencing results. (5) Bignold ([54]) suggested that magnetite is a mixture of ferrous and ferric ions. Ferric ion solubility is very low and on isolated magnetite ferric ions will build up on surface. Is it possible that this could lead to apparently low solubility and the true solubility should be obtained from magnetite coated iron?