What is the name for the compound with the formula SF6?
The Correct Answer and Explanation is:
The compound with the formula SF₆ is named sulfur hexafluoride.
Explanation:
The name sulfur hexafluoride follows the conventions of naming molecular (covalent) compounds:
- Identify the elements:
- The first element in the formula, S, represents sulfur.
- The second element, F, represents fluorine.
- Use prefixes to indicate the number of atoms:
- For molecular compounds, prefixes are used to specify the number of each type of atom in the compound. These prefixes are:
- 1: mono-
- 2: di-
- 3: tri-
- 4: tetra-
- 5: penta-
- 6: hexa-
- 7: hepta-
- 8: octa-
- 9: nona-
- 10: deca-
- In SF₆:
- The sulfur atom does not require a prefix because there is only one atom, and the first element in the compound name omits “mono-” for simplicity.
- The six fluorine atoms are indicated by the prefix hexa-.
- Combine the names:
- The name starts with “sulfur.”
- The prefix “hexa-” is added before “fluoride” to indicate six fluorine atoms.
- “Fluorine” is changed to “fluoride” to represent it as part of a compound.
- Final Name: Sulfur hexafluoride.
Properties and Uses:
Sulfur hexafluoride is an inert, non-toxic, colorless, and odorless gas. It has a high density and is often used as an insulating gas in high-voltage electrical equipment, such as circuit breakers and transformers. Its stability and excellent electrical insulating properties make it highly valuable in industrial applications. Additionally, SF₆ is a potent greenhouse gas, so its use is regulated in some areas to minimize environmental impact.