Sodium chromate is the inorganic compound with the formula Na2CrO4. It exists as a yellow hygroscopic solid, which can form tetra-, hexa-, and decahydrates. It is an intermediate in the extraction of chromium from its ores.
Sodium chromate is acidified with to give sodium dichromate. 2Na2CrO4 + H2SO4 Na2Cr2O7 Sodium dichromate +Na2SO4 + H2O (iii)Conversion of sodium dichromate into potassium dichromate. Sodium dichromate is treated with KCI and the resulting solution is evaporated to get orange coloured crystals of potassium dichromate.
SODIUM CHROMATE TETRAHYDRATE LR Supplier Oman Muscat Barka Salalah Sohar Ruwi Mutrah Nizwa Al Hamra Manah
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