Question

Preparation of potassium dichromate from sodium chromate

Answer 1

Potassium dichromate (K2Cr2O7) is prepared from chromite ore FeCr2O4. ... The yellow solution of sodium chromate is filtered and acidified with sulfuric acid to give a solution from which orange sodium dichromate , Na2Cr2O7 2H2O can be crystallized.

Answer 2

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(1)Potassium dichromate (K2Cr2O7) is prepared from chromite ore FeCr2O4. ... The yellow solution ofsodium chromate is filtered and acidified with sulfuric acid to give a solution from which orange sodium dichromate , Na2Cr2O7 2H2O can be crystallized.