Selenium Products

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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)

SeO2
Selenium
dioxide
Na2SeO3
Sodium
selenite
ZnSeO3
Zinc
selenite
Na2SeO4
Sodium
selenate

(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.