Introduction

8-Hydroxyquinoline sulfate (CAS number: 134-31-6), also known as Oxine sulfate or Quinolinol sulfate, is a versatile compound valued for its metal-chelating and bactericidal properties. Widely utilized across agriculture, medicine, and industry, it plays a crucial role in ensuring crop protection, medical treatments, and industrial processes.

Chemical Profile

           Molecular Formula: C$_{18}$H$_{14}$N$_{2}$O$_{2}$·H$_{2}$SO$_{4}$

           Molar Mass: 388.4 g/mol

           Density: Approximately 1.3819 (estimated)

           Melting Point: ~175°C

           Boiling Point: 569.4°C (at 760 mmHg)沸点：569.4°C（760 mmHg 时）

           Flash Point: 298.2°C

           Solubility: Highly soluble in water (≥10 g/100 mL at 19°C)

Physical Properties

           Appearance: Yellow crystals

           Storage Conditions: Store in an inert atmosphere at room temperature, away from food             materials to prevent contamination.

Applications

    Agriculture:

          Acts as an effective fungicide and bactericide, protecting crops from harmful fungal and            bacterial infections.

          Enhances plant health, contributing to higher yields and reduced losses.

   Medicine:

           Utilized for its bactericidal properties in various treatments.

           Serves as a preservative in pharmaceutical formulations to extend product shelf life.

   Chemical Industry:

           Functions as a metal chelating agent, efficiently precipitating and removing heavy                       metals from solutions.

           Commonly used in analytical chemistry and industrial processes requiring metal ion                     control.

    Cosmetics:

           Added for its preservative properties to prevent microbial growth, enhancing product               stability and safety.

    Forestry:

          Protects wood products and trees from microbial decay, extending their durability.

Conclusion

8-Hydroxyquinoline sulfate is a multifunctional compound integral to agriculture, medicine, and industry. Its potent metal-chelating and bactericidal capabilities make it indispensable for protecting crops, enhancing medical treatments, and ensuring the longevity of industrial and consumer products. Proper handling and storage are essential to maintain its effectiveness across diverse applications.