12-Crown-4
From Wikipedia, the free encyclopedia
| 12-Crown-4 | |
|---|---|
 |
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| IUPAC name | 1,4,7,10-tetraoxacyclododecane |
| Other names | 12-crown-4, Lithium Ionophore V |
| Identifiers | |
| CAS number | [294-93-9] |
| Properties | |
| Molecular formula | C8H16O4 |
| Molar mass | 176.21 |
| Density | 1.089 g/mL at 25 deg C |
| Melting point |
16 deg C |
| Boiling point |
61-70 deg C/0.5 mm Hg |
| Hazards | |
| Flash point | 113 deg C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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12-crown-4, also called 1,4,7,10-tetraoxacyclododecane and Lithium Ionophore V, is a crown ether with the formula C8H16O4. It is a cyclic tetramer of ethylene oxide which is specific for the lithium cation.
[edit] References
- Sigma-Aldrich Handbook of Fine Chemicals, 2007, page 768.
[edit] See also
- Crown ether
- Cyclen, a similar molecule with N atoms (aza groups) instead of O atoms (ethers)
