Which iron-zinc compound consists of 90% zinc and 10% iron?

The compound that consists of 90% zinc and 10% iron is known as the Delta phase or Delta zinc iron alloy. This specific composition contributes to its unique properties, which makes it particularly useful in various protective coatings applications, especially in galvanizing processes.

In terms of properties, the Delta phase is beneficial because it exhibits good adhesion to steel while providing excellent corrosion resistance, making it a preferred choice in many industrial applications. The balance of zinc to iron ensures effective cathodic protection while maintaining structural integrity.

The other phases, such as Gamma, Zeta, and Eta, have different percentages of zinc and iron, which influence their respective characteristics and uses in coatings. Understanding the composition of these phases is crucial for selecting the right materials in corrosion protection strategies and in the performance of zinc coatings.