Description

Sodium Bichromate is an inorganic compound primarily known as a powerful oxidizing agent and a key industrial intermediate. Its significance lies in its role as a precursor for the production of chromium chemicals, pigments, and metal treatment solutions. This product is essential for manufacturers in the leather tanning, metal finishing, and pigment production industries, where consistent quality and reliable supply are critical for process stability.

Application

• Chromium Chemical Synthesis: A primary raw material for manufacturing other chromium compounds, including chromium trioxide and various chromium salts.
• Metal Surface Treatment: Used in electroplating baths and as a component in conversion coatings for corrosion resistance on metals like aluminum and zinc.
• Pigment Manufacturing: Serves as a key intermediate in the production of chrome-based pigments, such as chrome yellow and chrome green, used in paints, plastics, and ceramics.
• Leather Tanning: Employed in the chrome tanning process to stabilize hide proteins, producing durable and supple leather.
• Wood Preservation: Acts as a component in formulations designed to protect wood from fungal decay and insect damage.
• Laboratory Reagent: Utilized as an analytical reagent and oxidizing agent in various chemical syntheses and testing procedures.

Basic Information

Product Name	Sodium Bichromate
CAS No.	10588-01-9
Molecular Formula	Na2Cr2O7
Molecular Weight	261.97 g/mol
Synonyms	Sodium Dichromate; Sodium Dichromate(VI); Bichromate of Soda; Disodium Dichromate; Sodium Pyrochromate; Chromic Acid, Disodium Salt; Natriumdichromat (German)
EINECS	234-190-3

Quality Control

Our Sodium Bichromate is manufactured under stringent process controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a comprehensive suite of analytical tests, including assay, impurity profiling, and physical characterization. A Certificate of Analysis (COA) documenting all critical parameters is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent caking. Store separately from strong acids, organic solvents, and reducing agents.

Specification

Item	Specification
Appearance	Orange-red crystalline powder
Identification (IR)	Conforms
Assay (Na2Cr2O7)	≥ 99.0 %
Insoluble Matter	≤ 0.01 %
Chloride (Cl)	≤ 0.005 %
Sulfate (SO4)	≤ 0.01 %
Moisture Content	≤ 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.