What is Sodium Chromate?
Sodium Chromate (Na₂CrO₄) is an inorganic compound that appears as a yellow crystalline solid. It is the sodium salt of chromic acid and is an important industrial chemical used primarily as a corrosion inhibitor, in the production of other chromium compounds, and in various industrial processes including leather tanning, textile dyeing, and metal treatment.
Polychem Industries supplies Sodium Chromate in industrial grade to manufacturers, industrial processors, and procurement teams across India and internationally. Due to its nature as a chromium(VI) compound, it is handled and supplied with full safety documentation and compliance with applicable regulations.
Safety Notice
Sodium Chromate is a hexavalent chromium compound classified as toxic, carcinogenic, and an environmental hazard. Proper PPE including gloves, goggles, and respiratory protection must be used when handling. Full MSDS documentation is provided with every supply. This product is supplied strictly for legitimate industrial use only.
Available Grades
| Grade | Form | Purity | Standard | Applications |
|---|---|---|---|---|
| Industrial Grade | Yellow Crystalline Powder | 98% | Industrial | Corrosion inhibition, pigments, leather tanning |
| Technical Grade | Powder / Granules | 97% | Technical | Chemical synthesis, metal treatment |
Applications & Uses
Corrosion Inhibitor
Widely used as a corrosion inhibitor in cooling water systems, industrial heat exchangers, and metal protection applications where it forms a protective chromate film on metal surfaces.
Pigments & Dyes
Used as an intermediate in the manufacture of chrome yellow and other chromium-based pigments used in paints, inks, and coatings.
Leather Tanning
Used in the chrome tanning process for leather production, where it reacts with collagen in hides to produce durable, flexible leather.
Textile Dyeing
Used as a mordant in the dyeing of wool and other natural fibres, helping dyes bond permanently to the fabric for improved colour fastness.
Metal Surface Treatment
Used in chromate conversion coating processes to protect aluminium, zinc, and other metals against corrosion and improve paint adhesion.
Chemical Synthesis
Serves as a raw material and oxidising agent in the synthesis of other chromium compounds including potassium dichromate and chromic acid.
Technical Specifications
Sodium Chromate — Key Properties
Why Source Sodium Chromate from Polychem Industries?
- Industrial and Technical grades available with full safety documentation
- MSDS and Certificate of Analysis provided with every supply
- Experienced in handling and shipping regulated industrial chemicals
- Bulk supply capability for large industrial requirements
- Competitive pricing with reliable year-round availability
- 25+ years of experience supplying industrial chemicals across India
