Selenium hexafluoride

Base Information

• Chemical Name: Selenium hexafluoride
• CAS No.: 7783-79-1
• Molecular Formula: F₆Se
• Molecular Weight: 192.95
• European Community (EC) Number: 620-577-8
• ICSC Number: 0947
• UN Number: 2194
• UNII: H91D37I668
• DSSTox Substance ID: DTXSID00999041
• Nikkaji Number: J95.311C
• Wikipedia: Selenium hexafluoride
• Wikidata: Q425217
• Mol file: 7783-79-1.mol

Synonyms:SELENIUM HEXAFLUORIDE;7783-79-1;Selenium fluoride;selenium(VI) fluoride;Selenium fluoride (SeF6);HSDB 676;UN2194;UN 2194;Selenium fluoride(SeF6), (OC-6-11)-;Selenium fluoride (SeF6), (OC-6-11)-;UNII-H91D37I668;Selenium fluoride, (OC-6-11)-;H91D37I668;Selenhexafluorid;Selenheksafluorid;hexafluoridoselenium;Selenium(VI)fluoride;F6Se;SeF6;selenium(6+) fluoride;F6-Se;Selenium hexafluoride [UN2194] [Poison gas];[SeF6];Hexafluoro-lambda~6~-selane;Selenium hexafluoride (as Se);CHEBI:30434;DTXSID00999041;SELENIUM HEXAFLUORIDE [MI];MFCD00042558;NA2194;LS-144817;FT-0695272;Fluoruro de selenio (SeF6), (OC-6-11)-;(OC-6-11)-SELENIUM FLUORIDE (SEF6);Selenium hexafluoride [UN2194] [Poison gas];Q425217

Chemical Property of Selenium hexafluoride

Chemical Property:

• Appearance/Colour: colourless gas
• Melting Point: -39°C
• Boiling Point: -34,5°C
• PSA: 0.00000
• Density: 1.66
• LogP: 2.14040
• Water Solubility.: insoluble H2O [MER06]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 193.90694
• Heavy Atom Count: 7
• Complexity: 62.7
• Transport DOT Label: Poison Gas Corrosive

Purity/Quality:

98%min ^*data from raw suppliers

Selenium hexafluoride ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T
• Hazard Codes: T
• Statements: 23/25-33-34
• Safety Statements: 20/21-28-45

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Corrosive Gases
• Canonical SMILES: F[Se](F)(F)(F)(F)F
• Inhalation Risk: A harmful concentration of this gas in the air will be reached very quickly on loss of containment.
• Effects of Short Term Exposure: Corrosive. The substance is corrosive to the eyes and respiratory tract. Inhalation of this gas may cause lung oedema. Rapid evaporation of the liquid may cause frostbite.
• Physical properties: Colorless gas; refractive index 1.895; density 3.25 g/L at -28°C; liquefies at -34.5°C; freezes at -50.8°C; sublimes at -63.8°C; insoluble in water.
• Uses: Selenium hexafluoride is used as a gaseous electric insulator (146). It may be prepared by passing gaseous fluorine over finely divided selenium in a copper vessel. Industrial selenium exposure is common for makers of arc light electrodes, electric rectifiers, and semiconductors. Gaseous electric insulator.

Technology Process of Selenium hexafluoride

There total 8 articles about Selenium hexafluoride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

selenium + fluorine (7782-41-4) → selenium(VI) hexafluoride (7783-79-1,271781-76-1) + selenium(IV) fluoride (13465-66-2,271781-78-3)

Guidance literature:

In neat (no solvent);

Reference yield:

selenium (7782-49-2) + fluorine (7782-41-4) → selenium(VI) hexafluoride (7783-79-1,271781-76-1) + selenium(IV) fluoride (13465-66-2,271781-78-3)

Guidance literature:

In neat (no solvent); impure;;

Reference yield:

selenium (7782-49-2) + trifluoroamine oxide (13847-65-9,57526-95-1,478286-98-5) → selenium(VI) hexafluoride (7783-79-1,271781-76-1) + selenium(IV) fluoride (13465-66-2,271781-78-3)

Guidance literature:

In neat (no solvent); cylinder fiited with dry powdered element, NF3O condensed into cylinder at -196°C, mixt. heated at 180°C for 16h; not isolated, monitored by NMR, IR;

upstream raw materials:

fluorine

molybdenum selenide

selenium

tungsten diselenide

Downstream raw materials:

sodium sulfate

selenium

sodium hydrogen selenite