Difference between revisions of "Tolidine"
(→References) |
m (1 revision) |
(No difference)
| |
Latest revision as of 12:12, 20 September 2010
| 2-Tolidine[1] | |
|---|---|
| File:2-tolidine.svg | |
| 4-(4-Amino-3-methylphenyl)-2-methylaniline | |
| Other names o-Tolidine; Orthotolidine; Diaminoditolyl; Diaminotolyl; Bianisidine; Tolidine blue; 3,3'-Dimethylbenzidine; 4,4'-Bi-o-toluidine | |
| style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers | |
| CAS number | 119-93-7 |
| PubChem | 8413 |
| SMILES | Script error: No such module "collapsible list". |
| style="background: #F8EABA; text-align: center;" colspan="2" | Properties | |
| Molecular formula | C14H16N2 |
| Molar mass | 212.29 g mol−1 |
| Density | 1.23 g/cm3 |
| Melting point |
129 °C, 402 K, 264 °F |
| Boiling point |
300.5 °C, 574 K, 573 °F |
| Solubility in water | 1.3 g/L |
| style="background: #F8EABA; text-align: center;" colspan="2" | Hazards | |
| R-phrases | R45 R22 R51/53 |
| S-phrases | S53 S45 S61 |
| Flash point | 244 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Toludine is a group of isomeric organic compounds, the most prevalent of which is 2-tolidine (o-tolidine).
Contents
Chemistry
2-Tolidine is slighly soluble in water (1.3 g/L) and has a melting point of 129 °C. It readily forms salts with acids, such as the hydrochloride which is commercially available. 2-Tolidine can be produced by a benzidine rearrangement from a hydrazine derivative.[2]
Uses
2-Tolidine is a commercially important aromatic amines used mainly for dye production, but also for the production of certain elastomers. 2-Tolidine is an intermediate for the production of soluble azo dyes and insoluble pigments used particularly in the textile, leather and paper industries.
2-Tolidine also widely used as a reagent or indicator in analytical, clinical and forensic chemistry, such as in the analytical determination of gold.
Safety
2-Tolidine is toxic and possibly carcinogenic. It is listed as an IARC Group 2B carcinogen, meaning it is "possibly carcinogenic to humans".
References
- ↑ Record of ortho-Tolidin in the GESTIS Substance Database from the IFA
- ↑ Noller, Carl R.: Textbook of Organic Chemistry, Springer Verlag, 1960
