| | 7446-08-4 Basic information More.. |
| Product Name: | Selenium dioxide | | Synonyms: | Selenious acid anhydride;SELENIOUS ANHYDRIDE;SELENIUM AA/ICP CALIBRATION/CHECK STANDARD;SELENIUM AA SINGLE ELEMENT STANDARD;SELENIUM, AAS STANDARD SOLUTION;SELENIUM AA STANDARD;SELENIUM ATOMIC ABSORPTION SINGLE ELEMENT STANDARD;SELENIUM ATOMIC ABSORPTION STANDARD | | CAS: | 7446-08-4 | | MF: | O2Se | | MW: | 110.96 | | EINECS: | 231-194-7 | | Mol File: | 7446-08-4.mol |  |
Use
Selenium dioxide is reduced to selenium metal when heated with carbon and other reducing agents.
When heated with ammonia, selenium dioxide forms selenium, nitrogen and water:
3SeO2 + NH3 3Se + 2N2 + 6H2O
Ammonia reacts with selenium dissolved in ethanol to form ammonium ethyl selenite, NH4(C2H5)SeO3.
Reaction with nitric acid forms selenic acid:
Se + 2HNO3 H2SeO4 + 2NO
Selenium dioxide is reduced by hydrazine to black amorphous selenium:
SeO2 + N2H4 Se + N2 + 2H2O
Hydroxylamine hydrochloride reduces selenium dioxide to reddish-brown amorphous selenium:
SeO2 + 4NH2OHHCl Se + 2N2 + 6H2O + 4HCl
The dioxide rapidly absorbs hydrogen halides, forming selenium oxyhalides:
SeO2 + HBr SeOBr2 + H2O
Reaction with thionyl chloride yields selenium oxychloride:
SeO2 + SOCl2 SeOCl2 + SO2
- Selenium dioxide
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- US $0.00 / KG
- 2023-09-23
- CAS:7446-08-4
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 50000KG/month
- Selenium(IV) oxide
-
- US $0.00-0.00 / kg
- 2023-09-06
- CAS:7446-08-4
- Min. Order: 1kg
- Purity: 0.99
- Supply Ability: 100tons
- Selenium dioxide
-
- US $0.00-0.00 / KG
- 2023-09-06
- CAS:7446-08-4
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 500000kg
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7446-08-4
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