Kolkata Chemical: Your Trusted Sodium Chromate Supplier in India

Kolkata Chemical: Your Trusted Sodium Chromate Supplier in India

Welcome to Kolkata Chemical, your reliable source for Sodium Chromate in Kolkata, India. As a leading supplier, manufacturer, and distributor, we take pride in offering high-quality Sodium Chromate to various industries. 

Product Details: CAS NO: 7775-11-3 Formula: Na2CrO4

Product Description: Sodium Chromate is an essential inorganic compound available in the form of a yellowish crystalline powder. With excellent solubility in water, it possesses unique chemical properties that make it highly sought after in various industrial applications.

Usage and Application: 

Sodium chromate is an inorganic compound with the chemical formula Na2CrO4. It is a yellow crystalline solid and is commonly used in various industries for its unique properties. In this article, we will explore the applications and uses of sodium chromate in different sectors.

  1. Industrial Cleaning and Surface Treatment: Sodium chromate is widely used in industrial cleaning and surface treatment applications. It serves as a powerful cleaning agent and can effectively remove dirt, grease, and contaminants from surfaces. Sodium chromate is commonly employed in metal cleaning processes, such as the cleaning of steel and aluminum surfaces before painting or coating. It helps in the removal of rust, scale, and other impurities, resulting in improved adhesion and corrosion resistance.
  2. Textile Industry: Sodium chromate finds applications in the textile industry, primarily in dyeing and printing processes. It acts as a mordant, facilitating the fixation of dyes onto fabric fibers. Sodium chromate forms insoluble complexes with certain dyes, enhancing their colorfastness and improving the overall quality of dyed textiles. It is particularly useful in dyeing natural fibers such as cotton, wool, and silk.
  3. Electroplating and Metal Finishing: Sodium chromate plays a vital role in electroplating and metal finishing processes. It is used as an electrolyte in chromate conversion coatings and as a component in plating baths. Sodium chromate forms a protective chromate layer on metal surfaces, providing corrosion resistance and improving the aesthetic appearance of the plated parts. It is commonly employed in the plating of metals like zinc, aluminum, and steel.
  4. Leather Tanning: Sodium chromate is used in the leather industry for the tanning of hides and skins. It acts as a tanning agent, facilitating the transformation of raw hides into durable and flexible leather. Sodium chromate helps in the crosslinking of collagen fibers, resulting in improved strength, softness, and resistance to decay. It is an essential component in the production of high-quality leather goods such as shoes, bags, and garments.
  5. Wood Preservatives: Sodium chromate is utilized as a wood preservative to protect timber and wood products from decay and insect attack. It can be applied as a water-based solution or incorporated into pressure-treated wood. Sodium chromate forms a protective barrier on the wood surface, inhibiting the growth of fungi and pests. It is commonly used for the preservation of outdoor wooden structures, fences, and utility poles.
  6. Corrosion Inhibition: Sodium chromate is employed as a corrosion inhibitor in various industries, including oil and gas, automotive, and aerospace. It helps in preventing or reducing the corrosion of metal surfaces exposed to aggressive environments or corrosive substances. Sodium chromate forms a passivation layer on the metal, which acts as a barrier, protecting the underlying metal from corrosion.
  7. Chemical Manufacturing: Sodium chromate serves as a precursor in the production of other chromium compounds and chemicals. It is used in the synthesis of chromic acid, chromate salts, and other chromium-containing compounds. These compounds have diverse applications in the production of pigments, dyes, catalysts, and specialty chemicals.
  8. Analytical Chemistry: Sodium chromate is utilized in analytical chemistry as a reagent and standard for various chemical analyses. It can be used for the determination of certain elements, such as lead and silver, in samples. Sodium chromate is also employed as a volumetric titration reagent for the quantification of certain analytes in solution.
  9. Other Uses: In addition to the above sectors, sodium chromate has applications in photographic processing, cement manufacturing, and the production of chrome-based pigments. It is also used in laboratory research, particularly in cell biology and genetic studies.

 Sodium chromate is a versatile compound with a wide range of applications in different sectors. Its unique properties, such as its cleaning, tanning, corrosion inhibition, and analytical capabilities, make it valuable in various industries. However, it is important to handle and use sodium chromate with proper safety precautions due to its toxic nature.

Product Parameters:

  • Grade Standard: Industrial Grade
  • Certification: ISO 9001:2015
  • Purity: Minimum 99%
  • Appearance: Yellowish crystalline powder


  • Sodium Chromate (Na2CrO4) content: ≥ 99%
  • Sodium Dichromate (Na2Cr2O7) content: ≤ 0.2%
  • Insoluble matter: ≤ 0.1%
  • Sodium Carbonate (Na2CO3) content: ≤ 0.5%
  • Moisture content: ≤ 0.5%

Our Advantages:

  1. Superior Quality Products: We ensure that our Sodium Chromate meets the highest quality standards.
  2. Diverse Applications: Our Sodium Chromate caters to various industries such as textiles, metallurgy, and dye manufacturing.
  3. Competitive Pricing: We offer competitive prices without compromising on product quality.
  4. Reliable Supply Chain: With an efficient supply chain, we ensure timely delivery across Kolkata, India, and major cities worldwide.
  5. Excellent Customer Service: We prioritize customer satisfaction and strive to provide exceptional service and prompt responses.

Company Information: Kolkata Chemical is a prominent chemical supplier based in Kolkata, India. With state-of-the-art manufacturing facilities and a strong commitment to quality, we have earned a reputation as a trusted partner across industries.

Packing: To ensure product safety during transportation, we provide Sodium Chromate in high-quality packaging. Our packaging options range from 25 kg bags to bulk shipments, tailored to meet the specific requirements of our customers.

Plant Area: Our advanced manufacturing plant is spread over a significant area, equipped with modern machinery and technology. This enables us to maintain high production capacity and cater to the growing demand for Sodium Chromate.

Terms of Payment: We offer flexible payment options, including bank transfers and letters of credit (L/C), to provide convenience and flexibility to our customers.

Nearest Port: Kolkata, being a major port city, provides convenient shipping options for both imports and exports of Sodium Chromate.

Import & Export Mode: As an established player in the market, we operate in both import and export modes. Our Sodium Chromate is supplied to top cities worldwide, including but not limited to Dubai, Abu Dhabi, Doha, Riyadh, Jeddah, Singapore, London, New York, and Shanghai.

 As a leading Sodium Chromate supplier, manufacturer, and distributor in Kolkata, India, Kolkata Chemical is committed to delivering superior quality products, unmatched service, and competitive prices. With our extensive industry knowledge and a strong presence in global markets, we aim to be your preferred partner for Sodium Chromate requirements. Contact us today and experience the Kolkata Chemical difference.



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