Overview
Sodium Isobutyl Xanthate (SIB) is a xanthate compound primarily used as a collector in the froth flotation process for sulfide ores. It is favored for its selectivity and effectiveness in separating valuable metals from ore. SIB is synthesized through the reaction of isobutyl alcohol with carbon disulfide and sodium hydroxide. As a key reagent in mineral processing, SIB plays a critical role in enhancing the recovery rates of metals like copper, lead, and zinc. Its ability to form hydrophobic layers on sulfide particles makes it indispensable in modern mining operations.
Physical and Chemical Properties
SIB appears as a pale yellow to white powder or granular solid. It is soluble in water and slightly soluble in alcohol, making it easy to handle in aqueous flotation systems. The compound decomposes at temperatures around 150-160°C, releasing carbon disulfide and other byproducts. Chemically, SIB is stable under normal conditions but can react with strong acids or oxidizers. Its molecular structure includes a xanthate functional group, which binds strongly to sulfide minerals, facilitating their separation from gangue materials.
Main Applications
SIB is predominantly used in the mining industry for the flotation of sulfide ores. It is particularly effective for copper, lead, zinc, and nickel ores, where it acts as a collector to improve metal recovery rates. The compound's selectivity ensures minimal interference with non-sulfide minerals. Beyond mining, SIB finds limited use in chemical synthesis and as a vulcanization accelerator in rubber production. However, its primary demand remains in mineral processing due to its cost-effectiveness and performance.
Safety and Storage
SIB requires careful handling due to its potential health hazards. Inhalation, ingestion, or skin contact can cause irritation or more severe effects. Proper personal protective equipment (PPE), including gloves, goggles, and respiratory masks, is essential when working with SIB. Storage should be in a cool, dry, and well-ventilated area, away from heat sources and moisture. The compound should be kept in tightly sealed containers to prevent degradation and contamination. Spills should be contained and cleaned up immediately using appropriate methods.
B2B Procurement Guide
When procuring SIB, prioritize suppliers with a proven track record in chemical manufacturing and distribution. Verify the CAS number (25306-75-6) and request certificates of analysis to ensure purity and quality. Bulk purchases often come with cost advantages, but storage capacity and shelf life should be considered. Market prices for SIB fluctuate based on raw material costs and demand. As of recent data, prices range approximately between $1,500 and $2,500 per ton. Establish long-term contracts with reliable suppliers to mitigate price volatility and ensure consistent supply.
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