Sodium Dichromate Powder

Sodium Dichromate (Na₂Cr₂O₇) is a bright orange-red, odorless, crystalline inorganic compound. It is a powerful hexavalent chromium (CrVI) oxidizing agent, highly corrosive and soluble in water. It is commonly handled as a dihydrate. It is primarily used in industrial leather tanning, corrosion inhibition, metal surface treatment and as a precursor to other chromium chemicals. It  is heavily used in metal passivation, corrosion inhibition, pigment manufacturing and wood preservation.

Applications of Sodium Dichromate:

• Metal Treatment & Corrosion Inhibition: It is heavily used in metal finishing, passivation and as a corrosion inhibitor, particularly in hot-dip galvanizing and protective coatings.

• Chromium Chemicals Production: It serves as the primary source for producing chrome oxide green, lead chromate, chromium sulfate and other chromium-based pigments.

• Leather Tanning: It is used in the tanning process to stabilize collagen fibers in hides, increasing durability.

• Oxidizing Agent: In organic chemistry, it acts as a strong oxidant for producing compounds like Vitamin K and various waxes.

• Textile Industry: It is used as a mordant in acidic dyes to improve color-fastness.

• Other Applications: Sodium Dichromate is used in drilling muds (oil industry), wood preservatives, pyrotechnics and to produce colored glass and ceramic glazes.

Sodium Dichromate – Product Specifications:

• Chemical Name: Sodium Dichromate

• Common Name: Sodium Bichromate

• Chemical Formula: Na₂Cr₂O₇·2H₂O (Dihydrate)

• Molecular Weight: 298.00 g/mol

• Appearance: Orange to red crystalline powder

• Odor: Odorless

• Solubility: Highly soluble in water

• pH: Acidic in solution

• Nature: Strong oxidizing agent

• CAS Number: 7789-12-0 (Dihydrate)

• HSN Code: 28413000

• Quality Specifications:

• Assay (Na₂Cr₂O₇·2H₂O): 99% Min

• Chromium (Cr⁶⁺): 34% – 35%

• Water Insoluble Matter: 0.05% Max

• Chloride (Cl): 0.1% Max

• Sulphate (SO₄): 0.1% Max

• Iron (Fe): 0.01% Max

• Grades Available: Industrial Grade, Technical Grade & Reagent Grade.

Packaging: 50 Kg. Bag

MOQ: 50 Kg.