Description

Copper(II) Selenite Dihydrate is an inorganic compound of copper and selenium, supplied as a high-purity solid for specialized industrial and research applications. This material serves as a critical precursor for the synthesis of advanced materials, including semiconductors and specialized pigments, where precise stoichiometry is essential. It is primarily utilized by manufacturers and R&D laboratories in the electronics, ceramics, and specialty chemical sectors.

Application

• Semiconductor Precursor: Used in the synthesis of copper selenide (CuSe) thin films and nanoparticles for photovoltaic and thermoelectric applications.
• Specialty Pigments & Ceramics: Acts as a source of both copper and selenium for producing unique colorants and glazes in ceramics and glass manufacturing.
• Catalyst Research: Investigated as a catalyst or catalyst precursor in various organic synthesis and oxidation reactions.
• Laboratory Reagent: Serves as a high-purity analytical standard and starting material in inorganic and materials science research.
• Nutritional Supplement Intermediate: Used in the controlled production of selenium and copper supplements for animal feed, under strict regulatory compliance.
• Electroplating Additive: Employed in specialized electroplating baths to deposit copper-selenium alloy coatings with specific functional properties.

Basic Information

Product Name	Copper(II) Selenite Dihydrate
CAS No.	15168-20-4
Molecular Formula	CuSeO3 · 2H2O
Molecular Weight	226.53 g/mol (anhydrous basis: 190.50 g/mol)
Synonyms	Cupric Selenite Dihydrate; Selenious Acid, Copper(2+) Salt, Dihydrate; Copper Selenite (1:1) Dihydrate; Copper Monoselenite Dihydrate; UNII-9F4809Q7QN; Copper(2+) Selenite Dihydrate; Cupric Selenite; Copper Selenite
EINECS	239-233-8

Quality Control

Our Copper(II) Selenite Dihydrate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing assay, heavy metal content, and other critical parameters is provided with every 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 at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept away from strong acids and reducing agents.

Specification

Item	Specification
Appearance	Blue-green to green crystalline powder
Identification (IR)	Conforms to standard
Assay (CuSeO3·2H2O)	≥ 98.0 %
Loss on Drying	≤ 16.0 %
Insoluble Matter	≤ 0.5 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 50 ppm

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