Sodium Sulphide Low Iron Flake 60%

Sodium Sulphide Low Iron Flake 60% is an inorganic compound composed of sodium and sulfide ions, appearing as yellow to orange flakes. It supplies approximately 60% sodium sulfide concentration, with low iron content to reduce contamination risks in end products. This compound is highly soluble in water and alkaline, with solution pH typically ranging 12 to 14. It is supplied in flakes form primarily packaged in 25 kg bags, suitable for industrial handling and storage. Buyers should be aware that it emits a characteristic sulfurous odor and must be stored away from acids and moisture to prevent hazardous reactions. This grade is commonly applied in processes requiring strong reducing and precipitating agents, where iron impurities could impede performance. Before ordering, consider that the typical dosage in leather processing ranges from 2 to 5% by weight depending on hide type, and the flakes readily dissolve at ambient temperatures. Handling precautions include avoiding contact with acids and ensuring ventilated storage to manage fumes and maintain chemical stability.

In leather tanning, Sodium Sulphide Low Iron Flake 60% destabilizes keratin proteins to remove hair cleanly and prepare hides without compromising leather surface quality. Its low iron content is critical to prevent staining that iron contaminants can cause, ensuring uniform and defect-free finished leather. In wastewater treatment, it precipitates dissolved heavy metals by forming stable metal sulfides, effectively reducing toxic metal concentrations and safeguarding environmental discharge standards. Its ability to operate in highly alkaline conditions makes it suited for various industrial effluent treatments without additional pH adjustments.