8-Hydroxyquinoline-5-sulfonic acid(CAS: 84-88-8)

8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8) is a crystalline compound with a molecular weight of approximately 228.15 g/mol. It has a high solubility in water and is slightly soluble in organic solvents. Chemically, it acts as a weak acid and is known for its reactivity with metal ions, particularly aluminum and copper complexes.

8-Hydroxyquinoline-5-sulfonic acid is typically synthesized from 8-hydroxyquinoline through sulfonation reactions. Common methods include direct sulfonation with concentrated sulfuric acid or mixed acid catalysts. The reaction is selective and yields up to 95% of the product.

8-Hydroxyquinoline-5-sulfonic acid is widely used in various industries. It is a key component in the synthesis of metal chelates, particularly for aluminum and copper complexes. It is also used in the pharmaceutical industry for its complexing properties, in the polymer industry for stabilizers, and in the semiconductor industry for its role in etching processes.

When handling 8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8), it is essential to use personal protective equipment (PPE) such as gloves and safety goggles. It should be stored in a cool, dry place, away from direct sunlight. In case of spill, use appropriate absorbents and dispose of waste according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed handling and safety information.