Description

Potassium Chromate CAS NO 7789-00-6 is a bright yellow, inorganic salt widely recognized as a powerful oxidizing agent. Its consistent chemical behavior and high purity make it a critical reagent for analytical chemistry and industrial processes requiring precise oxidation control. This compound is essential for manufacturers and laboratories in sectors such as chemical synthesis, metal treatment, and analytical testing.

Application

• Analytical Chemistry: Primarily used as an indicator in argentometric titrations (Mohr's method) for the determination of chloride ions.
• Metal Finishing & Corrosion Inhibition: Serves as a corrosion inhibitor in cooling water systems and as a component in conversion coatings for aluminum and other metals.
• Chemical Synthesis: Acts as a selective oxidizing agent in organic synthesis and as a precursor for other chromium compounds.
• Pigments & Dyes: Used in the manufacture of yellow pigments and dyes for ceramics, inks, and textiles.
• Laboratory Reagent: A standard chemical for qualitative and quantitative analysis in educational, research, and quality control laboratories.
• Wood Preservation: Historically used in formulations for wood treatment, though modern use is highly regulated.

Basic Information

Product Name	Potassium Chromate
CAS No.	7789-00-6
Molecular Formula	K2CrO4
Molecular Weight	194.19 g/mol
Synonyms	Potassium Chromate(VI); Chromic Acid, Dipotassium Salt; Dipotassium Chromate; Tarapacaite; Neutral Potassium Chromate; Chromate of Potash; Bipotassium Chromate
EINECS	232-140-5

Quality Control

Our Potassium Chromate is manufactured under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, heavy metal content, and other critical parameters. A Certificate of Analysis (COA) detailing assay results is provided with every shipment to guarantee traceability and compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong reducing agents, organic substances, and acids. Due to its hygroscopic nature, the container must be kept tightly sealed to prevent absorption of moisture from the air.

Specification

Item	Specification
Appearance	Bright yellow crystalline powder
Identification (IR)	Conforms
Assay (K2CrO4)	≥ 99.0 %
pH (5% solution)	8.0 - 10.0
Insoluble Matter	≤ 0.01 %
Chloride (Cl)	≤ 0.001 %
Sulfate (SO4)	≤ 0.005 %
Heavy Metals (as Pb)	≤ 0.001 %

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