Question

Which of the following is/are the preventions of dezincification?

(a) Minimizing oxygen concentration

(b) Use of less susceptible alloy

(c) Adding a small amount of arsenic, antimony

(d) Removal of oxygen concentration, use of less susceptible alloy and adding a small amount of arsenic, antimony

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Question is from Eight Forms in portion Eight Forms of Corrosion of Corrosion Engineering

Answer 1

Correct option is (d) Removal of oxygen concentration, use of less susceptible alloy and adding a small amount of arsenic, antimony

Easiest explanation: Dezincification can be minimized or reduced by

i. Minimizing the oxygen concentration in the environment

ii. Use of less susceptible alloy such as red brass (15% zinc)

iii. Adding small amounts of arsenic, antimony, and phosphorus as an inhibitor