CAS 7782-49-2: Selenium
Description:Selenium is a non-metallic element with the atomic number 34 and is classified as a chalcogen in group 16 of the periodic table. It exhibits several allotropes, the most stable of which is a gray, metallic-looking form. Selenium is known for its semiconductor properties, making it valuable in electronic applications, particularly in photocells and solar cells. It is also utilized in glassmaking to decolorize glass and in the production of pigments. Selenium is essential in trace amounts for certain organisms, including humans, where it plays a critical role in antioxidant enzyme functions. However, it can be toxic in higher concentrations, leading to selenosis, which is characterized by symptoms such as gastrointestinal distress and neurological issues. Selenium compounds can exhibit various oxidation states, typically ranging from -2 to +6, influencing their reactivity and applications. Its CAS number, 7782-49-2, is a unique identifier used to specify this element in chemical databases and regulatory documents. Overall, selenium is a versatile element with both beneficial and hazardous properties, depending on its form and concentration.
Formula:Se
InChI:InChI=1S/Se
InChI key:InChIKey=BUGBHKTXTAQXES-UHFFFAOYSA-N
SMILES:[Se]
- Synonyms:
- B-TRAXIM Se
- Selen
- Selenio
- Selenium (Se)
- Selsaf 2000
- Serendipita MKCA6-3
- selenide
- Selenium
- VANDEX
- C.I. 77805
- See more synonyms
Brand | Product data | Purity | Price range | Estimated delivery |
---|---|---|---|---|
![]() | Selenium Granules 2-4 mm, 99.99% REF: 7W-GX1661CAS: 7782-49-2 | - - - | 427.00 €~1,230.00 € | Wed 07 May 25 |
![]() | Selenium Powder -160 mesh, 99.99+% REF: 7W-GX2812CAS: 7782-49-2 | - - - | 397.00 € | Wed 07 May 25 |
![]() | Selenium REF: 3D-FS153706CAS: 7782-49-2 | Min. 95% | - - - | Discontinued product |
![]() | Selenium Metal Powder ultrapure, 99.999%, 100 mesh REF: SR-51200CAS: 7782-49-2 | min. 99.999% | - - - | Discontinued product |
![]() | Selenium Metal Granular ultrapure, 99.999%, 1-6mm REF: SR-77855CAS: 7782-49-2 | min. 99.999% | - - - | Discontinued product |
![]() | Selenium Metal Powder extrapure, 99.9%, 100 mesh REF: SR-90945CAS: 7782-49-2 | min. 99.9% | - - - | Discontinued product |
![]() | Selenium Nanopowder in aq. media, 0.1mg/ml, 50nm REF: SR-28699CAS: 7782-49-2 | - - - | - - - | Discontinued product |

Selenium
Ref: 3D-FS153706
Undefined size | Discontinued | Request information |

Selenium Metal Powder ultrapure, 99.999%, 100 mesh
Ref: SR-51200
25g | Discontinued | Request information | |
100g | Discontinued | Request information |

Selenium Metal Granular ultrapure, 99.999%, 1-6mm
Ref: SR-77855
25g | Discontinued | Request information | |
100g | Discontinued | Request information |

Selenium Metal Powder extrapure, 99.9%, 100 mesh
Ref: SR-90945
25g | Discontinued | Request information | |
100g | Discontinued | Request information | |
500g | Discontinued | Request information |

Ref: SR-28699
2ml | Discontinued | Request information |