Sodium Isopropyl Xanthate (SIPX), chemically known as Proxan Sodium, is a compound distinguished by a specific set of chemical and physical properties that dictate its diverse industrial applications, particularly in mineral flotation. A thorough understanding of these characteristics, alongside its synthesis, is crucial for effective utilization.

The molecular formula for SIPX is C4H7NaOS2, with a molecular weight of approximately 158.22 g/mol. Physically, it commonly presents as a yellowish powder or granules, often with a pungent odor. Its solubility is a key attribute; it is readily soluble in water, which is advantageous for its application in aqueous-based flotation systems. It also shows solubility in alcohol and weak acids, broadening its applicability. The density of SIPX is approximately 1.35 g/cm³.

Thermally, SIPX is relatively stable up to around 150°C, beyond which it begins to decompose. This decomposition process can yield carbon disulfide and other sulfurous compounds. Its stability is influenced by factors such as moisture and temperature, underscoring the importance of proper storage conditions – typically in a cool, dry place, away from direct sunlight and moisture.

The synthesis of Sodium Isopropyl Xanthate involves a reaction between isopropyl alcohol, carbon disulfide, and sodium hydroxide. This process is optimized to yield high purity SIPX, typically ranging from 84% to over 90% for industrial grades. The precise synthesis conditions and purification steps are critical for achieving the desired product characteristics, such as consistent particle size and minimal impurities, which directly impact its performance as a flotation collector.

Spectroscopic analysis, including FTIR and NMR, can further confirm the identity and purity of SIPX. These techniques identify characteristic functional groups and molecular structures, ensuring the product meets quality standards. When sourcing SIPX, inquiring about its purity, physical form, and compliance with safety regulations is essential for ensuring its effective and safe application in industrial processes.