Sodium Dithiophosphate

Updated: 2026-08-29

Overview

Sodium dithiophosphate is an inorganic compound primarily used in industrial applications. It is recognized for its role as a flotation agent in the mining industry, where it helps separate valuable minerals from ore. Additionally, it serves as a corrosion inhibitor in water treatment systems and finds use in certain chemical synthesis processes. The compound is typically available as a white to yellowish crystalline powder, soluble in water. Its chemical stability and reactivity make it suitable for specialized industrial applications, though it requires careful handling due to potential hazards.

Physical and Chemical Properties

Sodium dithiophosphate is characterized by its molecular formula Na3PS2O2 and a molecular weight of 216.09 g/mol. It appears as a white to yellowish crystalline solid and is soluble in water, which facilitates its use in aqueous solutions for industrial processes. Key chemical properties include its ability to act as a chelating agent, forming stable complexes with metal ions. This property is particularly valuable in mining flotation processes, where it enhances the separation of metals from ores. The compound's stability under normal storage conditions makes it relatively easy to handle, provided standard safety protocols are followed.

Main Applications

The primary application of sodium dithiophosphate is in the mining industry, where it functions as a flotation agent to separate sulfide minerals from ore. Its ability to selectively bind to metal surfaces improves the efficiency of mineral extraction processes. In water treatment, sodium dithiophosphate is used as a corrosion inhibitor, protecting metal surfaces from degradation in aqueous environments. It also finds niche applications in chemical synthesis, particularly in reactions requiring phosphorus-sulfur compounds. Industrial users should assess the compound's compatibility with specific processes to ensure optimal performance.

Safety and Storage

Sodium dithiophosphate requires careful handling to minimize health and environmental risks. Direct contact with skin or eyes should be avoided, and personal protective equipment (PPE) such as gloves and goggles is recommended during use. Storage conditions should prioritize a cool, dry environment, away from oxidizing agents to prevent chemical reactions. Proper ventilation is advised in areas where the compound is handled or stored. Spills should be contained and cleaned promptly using appropriate methods to avoid environmental contamination.

B2B Procurement Guide

When procuring sodium dithiophosphate, B2B buyers should prioritize suppliers with verified certifications and a track record of consistent quality. Key factors to consider include purity levels, which typically range from 95% to 99%, depending on the application. Pricing varies based on quantity, purity, and supplier location, with reference prices commonly falling between $50 and $150 per kilogram. Buyers should request material safety data sheets (MSDS) and technical specifications to ensure compliance with industry standards. Bulk purchases may offer cost advantages, but storage capabilities should be assessed to maintain product integrity.