The chemical composition of the refractory brick is the compound of the refractory brick, also known as multiple chemical composition. Generally speaking many different refractory bricks with different chemical composition, and every kinds of refractory bricks according to the contents of each component and how much can be divided into two parts, a part is accounted for an absolute majority of basic components, another part is accounted for a small amount of impurities. Refractory bricks, usually need to determine the composition of Al2O3, SiO2, Fe2O3, MgO2, CaO, MgO, Na2O, K2O, and so on.
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