Bromaniline
| Bromaniline | |||||||
| Surname | 2-bromoaniline | 3-bromoaniline | 4-bromoaniline | ||||
| other names | o -bromaniline | m -bromaniline | p -bromaniline | ||||
| Structural formula |
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| CAS number | 615-36-1 | 591-19-5 | 106-40-1 | ||||
| PubChem | 11992 | 11562 | 7807 | ||||
| Molecular formula | C 6 H 6 BrN | ||||||
| Molar mass | 172.03 g mol −1 | ||||||
| Physical state | liquid | firmly | |||||
| Melting point | 24-28 ° C | 15-18 ° C | 63-65 ° C | ||||
| boiling point | 250 ° C | 251 ° C | 245 ° C | ||||
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pK s value (of the conjugate acid BH + ) |
2.53 | 3.58 | 3.86 | ||||
| Refractive index | 1.6113 (20 ° C; 589 nm) | 1.6260 (20 ° C; 589 nm) | |||||
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GHS labeling |
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| H and P phrases | 302-311-373 | 302-312-315-319-335 | 302-311-315-319-335 | ||||
| no EUH phrases | no EUH phrases | no EUH phrases | |||||
| 280-312 | 261-280-305 + 351 + 338 | 261-280-305 + 351 + 338-312 | |||||
In chemistry , the bromanilines form a group of substances that are derived from both aniline and bromobenzene . The structure consists of a benzene ring with attached amino group (-NH 2 ) and bromine (-Br) as substituents . Their different arrangements ( ortho , meta or para ) result in three constitutional isomers with the empirical formula C 6 H 6 BrN.
properties
The 4-bromoaniline, which has the highest symmetry, has the highest melting point.
Individual evidence
- ↑ a b data sheet 2-bromoaniline from Sigma-Aldrich , accessed on April 26, 2011 ( PDF ).
- ↑ a b data sheet 3-bromoaniline from Sigma-Aldrich , accessed on April 26, 2011 ( PDF ).
- ↑ a b Data sheet 4-Bromoaniline from Sigma-Aldrich , accessed on April 26, 2011 ( PDF ).
- ↑ a b c d CRC Handbook of Tables for Organic Compound Identification , Third Edition, 1984, ISBN 0-8493-0303-6 .
- ↑ a b David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-56.