Mischmetal is a specialized, highly valuable pyrophoric alloy extensively utilized in the metallurgi — d and f Block Elements Chemistry Question

💡 Solution & Explanation

Mischmetal is an alloy consisting almost entirely of inner transition elements. Its standard commercial composition is approximately $95\%$ Lanthanoid metals (with Cerium being the most abundant constituent at roughly $50\%$), combined with exactly $5\%$ Iron ($Fe$) to impart necessary structural integrity and sparking capability, alongside trace amounts of Sulphur, Carbon, Calcium, and Aluminum.