| Identification | ||
| Name | p-Toluenesulfonic acid monohydrate | |
| Synonyms | Toluene-4-sulfonic acid monohydrate; 4-Methylbenzenesulfonic acid monohydrate; PTSA | |
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| Molecular Structure |
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| Molecular Formula | C7H8O3S.H2O | |
| Molecular Weight | 190.21 | |
| CAS Registry Number | 6192-52-5 | |
| Properties | ||
| Melting point | 103-106 ºC | |
| Flash point | 180 ºC | |
| Water solubility | soluble | |