para-Azoxyanisole
 | |
| Names | |
|---|---|
| IUPAC name
1-methoxy-4-[(4-methoxyphenyl)-NNO-azoxy]benzene | |
| Other names
p-Azoxyanisole | |
| Identifiers | |
1562-94-3  | |
| 3D model (Jmol) | Interactive image |
| ChemSpider | 14542 |
| PubChem | 15277 |
| |
| |
| Properties | |
| C14H14N2O3 | |
| Molar mass | 258.27 g/mol |
| Density | 1.14g/cm3 |
| Melting point | 114.9 °C (238.8 °F; 388.0 K) |
| Boiling point | 417.9 °C (784.2 °F; 691.0 K) at 760 mmHg |
| Hazards | |
| Flash point | 206.6 °C (403.9 °F; 479.8 K) |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
verify (what is  ?) | |
| Infobox references | |
para-Azoxyanisole (PAA) is an organic, aromatic compound. In a solid state, it appears as a white powder, but when heated it forms a liquid crystal. As one of the first known and most readily prepared liquid crystals,[1] PAA has played an important role in the development of liquid crystal displays.[2]
Its liquid crystal range is from 118 °C to 136 °C. The solid to nematic transition is at 118 °C and the nematic to isotropic liquid transition at 136 °C.[1]
References
- 1 2 Shao, Y.; Zerda, T. W. (1998). "Phase Transitions of Liquid Crystal PAA in Confined Geometries". Journal of Physical Chemistry B. 102 (18): 3387–3394. doi:10.1021/jp9734437.
- ↑ Liquid Gold: The Story of Liquid Crystal Displays and the Creation of an Industry, Joseph A. Castellano, ISBN 978-981-238-956-5
This article is issued from Wikipedia - version of the 6/4/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.