Chemistry:Para-Azoxyanisole
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| Names | |
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| IUPAC name
1-Methoxy-4-[(4-methoxyphenyl)-NNO-azoxy]benzene
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| Other names
p-Azoxyanisole
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| UNII | |
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| Properties | |
| C14H14N2O3 | |
| Molar mass | 258.277 g·mol−1 |
| Density | 1.14 g/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[dubious ][citation needed] |
| 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   ?)
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| Infobox references | |
Tracking categories (test):
para-Azoxyanisole (PAA) is an organic, aromatic compound. Its chemical formula is C14H14N2O3. 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
- ↑ 1.0 1.1 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
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