1. A brine solution is used as a cooling medium in a steel heat exchanger. The brine is circulated within the heat exchanger and contains some dissolved oxygen. Suggest three methods, other than cathodic protection, for reducing corrosion of the steel by the brine. Explain the rationale for each suggestion.
2. Suggest an appropriate material for each of the following applications, and, if necessary, recommend corrosion prevention measures that should be taken. Justify your suggestions.
(a) Laboratory bottles to contain relatively dilute solutions of nitric acid
(b) Barrels to contain benzene
(c) Pipe to transport hot alkaline (basic) solutions
(d) Underground tanks to store large quantities of high-purity water
(e) Architectural trim for high-rise buildings