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  • Selenium Products

    Selenium Metal, Chemicals, and Alloys


    Vital Materials is a selenium metal manufacturer producing in various shapes and sizes, from powder to pellets to ingots and a wide range of purity from 99.5% to 99.999% depending on customer’s requirement and specification. Vital Materials also produces chemicals and compounds derived from selenium such as selenium dioxide, sodium selenite and sodium selenate for various industrial applications; other specialty products such as hydrogen selenide and zinc selenide. Vital Materials’ products can be tailor-made according to what the customer desires.

    Properties

    Selenium occurs in an amorphous form (red selenium) or as a grey silvery metal. The amorphous form is a glass-like solid while the metal form is soft.

    Under influence of light the electrical conductivity increases. Photoconductivity is an outstanding physical property of crystalline selenium.


    Applications

    • Electrolytic manganese industry: Selenium is added in the production of electrolytic manganese to enhance the current efficiency.
    • Glass industry: Selenium de-colors glass by neutralizing the green color due to the presence of iron. If a red color is desired cadmium sulphoselenide is added. Selenium is also used in the production of privacy glass.
    • Agriculture: Since selenium is an essential micronutrient for animals it is used in premix for feed additives. It is also added to some special blends of fertilizers.
    • Metallurgy: Selenium is added to improve the machinability of carbon steel, stainless steel and copper. It acts as a grain refiner in the grids of low-maintenance lead-acid batteries.
    • Pigment: Cadmium sulfoselenide compounds are added in plastics, glass, ceramics and paints for red or orange color.
    • Electronic/electrical: Due to infrared light transparency, Selenium is used in windows for infrared optical devices (lenses for CO2 lasers).
    • In solar cells selenium is used in CIGS, CIS and CdSe.
    It is also used in some smaller electronic applications like thermoelectric devices. Lithium-selenium batteries are one of the most promising systems for energy storage but is still in an early stage of development.

    Sources of recycling material are spent vapour deposition from CVD chambers or scrap from the photo voltaic industry.


    Selenium Compounds (Click These Boxes to See the Product Pages)

    (Click on These Boxes for More Product Info)

    H2SeO3
    Selenous
    acid
    NaHSeO3
    Sodium
    hydrogen
    selenite
    BaSeO3
    Barium
    selenite
    K2SeO3
    Potassium
    selenite
    Na2SeO4.10H2O
    Sodium
    selenate
    decahydrate

    Selenous acid - H2Se03

    CAS #: 7783-00-8
    Application: Pharmaceuticals
    Usage: A medical intermediate and a chemical reagent; electroplating industry; used as an oxidant and for preparing other selenium compounds such as sodium selenite.

    Sodium hydrogen selenite - NaHSeO3

    CAS #: 7782-82-3
    Application: Analytical reagents
    Usage: Used as an analytical reagent and also used for preparing selenite brilliant green enrichment broth and selenite L-cystine enrichment broth.

    Barium selenite - BaSeO3

    CAS #: 13718-59-7
    Application: Ceramics and Glasses
    Usage: Glass industry and ceramic glaze industry.

    Potassium selenite - K2SeO3

    CAS #: 10431-47-7
    Application: Analytical reagents
    Usage: Used as an analytical reagent in the ceramic industry and fodder industry.

    Sodium selenate decahydrate - Na2SeO4.10H2O

    CAS #: 13410-01-0
    Application: Agriculture and Feed additives, Pharmaceuticals
    Usage: Used as an animal fodder additive; used as a fertilizer and plant nutrient additive; and used in the health care product, food and pharmaceutical industries.
    BaSeO4
    Barium
    selenate
    K2SeO4
    Potassium
    selenate
    C12H24N4S8Se
    Selenium
    dimethyldithio-
    carbamate
    SeS2
    Selenium
    sulfide

    Barium selenate - BaSeO4

    CAS #: 7787-41-9
    Application: Pharmaceuticals, Analytical reagents
    Usage: A medical intermediate and a chemical reagent.

    Potassium selenate - K2SeO4

    CAS #: 7790-59-2
    Application: Analytical reagents
    Usage: Used as a chemical reagent.

    Selenium dimethyldithiocarbamate - C12H24N4S8Se

    CAS #: 144-34-3
    Application: Catalyst
    Usage: Vulcanization accelerator.

    Selenium sulfide - SeS2

    CAS #: 56093-45-9
    Application: Pharmaceuticals
    Usage: Used for preparing drugs for dermatosis in the medicine field.

    Selenium Alloys (Click on These Boxes for More Product Info)

    As2Se3
    Selenium
    arsenic
    FeSe
    Iron
    selenide

    Selenium Arsenic - As2Se3

    CAS #: 1303-36-2
    Application: Printer cartridge
    Usage: Used for producing toner cartridges in the printer field.

    Iron selenide - FeSe

    CAS #: 1310-32-3
    Application: Electronics and Optoelectronics
    Usage: A special steel additive and a superconducting material.
    Vital Materials provides a full range of the minor metal products. We can customize the purity, composition and forms for different industrial applications. Please contact us for more information.
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