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Phenolsulfonic Acid (Phenol Sulfonic Acid) Rubber O-Rings & Gasket Compatibility

Phenolsulfonic acid, with the chemical formula C6H6O4S, is an aromatic sulfonated compound that may appear as a white crystalline solid or a viscous liquid depending on temperature and hydration state. It is widely used in chemical manufacturing as a strong organic acid and catalytic agent. Its sulfonic acid functionality provides high acidity and reactivity in controlled synthesis environments. In industrial applications, phenolsulfonic acid is commonly used as a catalyst in esterification, polymerization, and related condensation reactions. It also serves as an intermediate in the production of specialty resins, dyes, and certain pharmaceutical compounds. Its ability to promote reaction efficiency and improve conversion rates makes it valuable in precision chemical processing. Due to its corrosive properties, phenolsulfonic acid must be handled with care. Direct contact can cause skin and eye irritation, and vapors may affect the respiratory system. Safe handling requires storage in corrosion-resistant containers within a cool, well-ventilated area. Appropriate personal protective equipment and adherence to established safety procedures are essential to minimize exposure risks and prevent environmental release during industrial use.

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