CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Selenium hexafluoride is a colorless gas used as a electrical insulator. It is highly toxic by inhalation. When heated to high temperatures it may decompose to emit toxic fluoride and selenium fumes. Prolonged exposure of the container to fire or intense heat may cause it to violently rupture or rocket. |
|---|---|
| Color/Form | Colorless gas; white solid at low temperature |
| Boiling Point | -30 °F at 760 mmHg (NIOSH, 2023) |
| Melting Point | -59 °F (NIOSH, 2023) |
| Solubility | Insoluble (NIOSH, 2023) |
| Density | 7.887 g/L |
| Vapor Density | 6.66 (NIOSH, 2023) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | greater than 1 atm (NIOSH, 2023) |
| Decomposition | Decomposes when dissolved in water. |
| Refractive Index | Index of refraction: 1.895 |
| Other Experimental Properties | Conversion: 1 ppm = 7.89 mg/cu m; hydrolyzes very slowly in cold water |
| Chemical Classes | Toxic Gases & Vapors -> Corrosive Gases |
COMPUTED DESCRIPTORS
| Molecular Weight | 192.96 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 193.90694 g/mol |
| Monoisotopic Mass | 193.90694 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Complexity | 62.7 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Selenium hexafluoride is a corrosive, colorless gas at room temperature. Selenium hexafluoride is only slightly soluble in water. It does not occur naturally in the environment. Selenium hexafluoride is used as a gaseous electrical insulator.