What is the chemical composition of carborundum, which is utilized in the production of crucibles for melting non-ferrous metals?

Refractory Technology MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Refractory Technologychemical-engineering › refractory-technology
Published
8 Mar 2019
Last updated
28 May 2026

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Explanation

Carborundum is chemically known as silicon carbide, a compound commonly used to manufacture crucibles for melting non-ferrous metals due to its high thermal resistance and strength. Other options such as silicon nitride, crystalline magnesia (magnesium oxide), and zirconium sulfate are different compounds with distinct uses.

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