P-toluene sulfonic acid (chemical formula: p-CH3C6H4SO3H, also written TsOH) is a non-oxidizing organic acid that is one million times more acidic than benzoic acid. White needle or powder crystal, easily deliquescent, soluble in water, alcohol and other polar solvents. Will make paper, wood and other dehydration occurs carbonization. The most common is p-toluenesulfonic acid monohydrate TsOH·H2O.
| Name | p-Toluenesulfonic acid monohydrate | EINECS | 203-180-0 |
| CAS No. | 6192-52-5 | Density | 1.24 g/cm3 |
| PSA | 71.98000 | LogP | 2.25820 |
| Solubility | Soluble in water | Melting Point | 96-99 °C(lit.)
|
| Formula | C7H8O3S. H2O | Boiling Point | 428.9 °C at 760 mmHg |
| Molecular Weight | 190.22 | Flash Point | 213.2 °C |
| Transport Information | UN 2585 8/PG 3 | Appearance | white crystals |
Appearance and properties: white crystal
Density: 1,24 g/cm3
Boiling point: 140°C 20mm
Melting point: 96-99 °C(lit.)
Flash point: 180 °C
Refractive index: 1.382-1.384
Water solubility: soluble
Stability: Stable. Incompatible with strong oxidizing agents, strong bases, most common metals. Protect from moisture.
Storage: Store at RT.
Vapor density: 5.9 (vs air)
Usage:It is used in medicine, pesticides, dyes and detergents, as well as in plastics and printing coatings.
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