Description

Dihydrogen Selenide is a highly toxic, flammable, and corrosive inorganic compound with the chemical formula H₂Se. This colorless, pungent-smelling gas is a critical precursor in the semiconductor and electronics industries for the synthesis of metal selenides. It is primarily utilized in the manufacturing of photovoltaic cells, photoconductors, and specialty glasses, where precise purity and reliable supply are paramount for production quality.

Application

• Semiconductor Manufacturing: As a key selenium source for Metal-Organic Chemical Vapor Deposition (MOCVD) to produce thin-film semiconductors like copper indium gallium selenide (CIGS) for solar cells.
• Electronics & Optoelectronics: Synthesis of II-VI compound semiconductors (e.g., zinc selenide, cadmium selenide) used in LEDs, laser diodes, and infrared optical components.
• Chemical Synthesis: Acts as a strong reducing agent and a selenium donor in the preparation of various organoselenium compounds and inorganic selenides.
• Doping Agent: Used in the doping of specific semiconductor materials to modify their electrical properties.
• Research & Development: Employed in academic and industrial laboratories for materials science research and the development of new electronic materials.

Basic Information

Product Name	Dihydrogen Selenide
CAS No.	7783-07-5
Molecular Formula	H₂Se
Molecular Weight	80.98 g/mol
Synonyms	Hydrogen Selenide; Selenium Hydride; Dihydridoselenium; Hydroselenic Acid; Selenane; Selenium Dihydride; H₂Se; SELENIUM HYDRIDE (H2Se)
EINECS	231-978-9

Quality Control

Our Dihydrogen Selenide is produced and handled under stringent conditions to ensure the high purity and consistency required for advanced electronic applications. Each batch is analyzed using advanced gas chromatography (GC) and mass spectrometry (MS) techniques. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and moisture content is provided with every shipment to guarantee traceability and compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its gaseous, toxic, and flammable nature, cylinders must be secured upright and handled in accordance with all local and international regulations for hazardous materials. Storage temperature should not exceed 30°C (86°F).

Specification

Item	Specification
Appearance	Colorless Gas
Assay (H₂Se)	≥ 99.9%
Moisture (H₂O)	≤ 10 ppm
Oxygen (O₂)	≤ 5 ppm
Nitrogen (N₂)	≤ 50 ppm
Carbon Dioxide (CO₂)	≤ 5 ppm
Total Hydrocarbons (as CH₄)	≤ 10 ppm
Identification (IR)	Conforms

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