sodium dichromate

chemical compound

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Last updated

July 13, 2026

Quick Summary

Sodium dichromate is a poisonous, red, crystalline salt with the chemical formula Na₂Cr₂O₇. It is produced by oxidizing sodium chromate.1

This compound has various industrial applications, including:
* Making pigments1
* Tanning leather12
* Dyeing1
* Cleaning and protecting metals from corrosion12
* Acting as an oxidizing agent1

Sodium dichromate is also an intermediate in the production of pure chromium metal.2

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chromium processing
Tanning
…in turn, are produced from sodium dichromate. This reagent is produced by heating the ore with soda ash and then leaching out soluble chromate, which is then converted to the dichromate by treatment with sulfuric acid.
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…in turn, are produced from sodium dichromate. This reagent is produced by heating the ore with soda ash and then leaching out soluble chromate, which is then converted to the dichromate by treatment with sulfuric acid.
Read More