P-TOLUENESULFONIC ACID MONOHYDRATE(CAS: 6192-52-5)

P-Toluenesulfonic acid monohydrate is a white crystalline solid commonly used as a catalyst in organic synthesis. Its chemical formula is C7H8O3S. It is a strong acid with a pKa of around 0.5, and it is soluble in water and many organic solvents. The monohydrate form contains one molecule of water per molecule of acid, which affects its physical properties and solubility.

P-Toluenesulfonic acid monohydrate is widely used in the pharmaceutical industry as a catalyst for esterification and acylation reactions. It also finds applications in polymer synthesis, as a reagent in the production of surfactants, and in the manufacturing of dyes and pesticides. In research settings, it serves as a versatile acid catalyst for various organic transformations.

P-Toluenesulfonic acid monohydrate is generally considered safe when handled properly. However, it is corrosive and can cause skin and eye irritation. It is important to use appropriate personal protective equipment (PPE), such as gloves and goggles, and to work in a well-ventilated area. Safety standards recommend caution during storage and handling to prevent exposure and ensure safe laboratory practices.

P-Toluenesulfonic acid monohydrate should be stored in a cool, dry, and dark place, ideally at temperatures below 25°C. It is sensitive to moisture and should be kept in a sealed container to maintain its stability. To prevent degradation, it should be protected from light and stored away from incompatible materials. Proper storage ensures its effectiveness and safety in both industrial and research applications.