Sodium Hydrosulfide Technical Principles & Industry Application.

In the leather industry, sodium hydrosulfide is used for dehairing and softening hides. It breaks the connecting structures between hair and skin, making hair easy to remove. At the same time, it softens leather fibers to a certain extent, improving the feel and flexibility of leather.

Detailed explanation: Hair on raw hides must be removed before further processing. Sodium hydrosulfide reacts with keratin and other components in hair, breaking the chemical bonds connecting hair to the skin, causing the hair to loosen and fall off. Additionally, it acts on leather fibers, making them softer and enhancing the quality and usability of the leather.

As an important chemical raw material, sodium hydrosulfide is used in the synthesis of various organic sulfur compounds, such as thiols and thioethers. These organic sulfur compounds have wide applications in fields including pharmaceuticals, pesticides, and fragrances.

Sodium Hydrosulfide – Zibo Anhao Chemical Co., Ltd.
Zibo Anhao Chemical Co., Ltd. delivers high-quality sodium hydrosulfide (NaHS, CAS 16721-80-5), a core inorganic sulfide with reliable performance for global industrial clients. Our product is available in white-to-pale yellow flake/granular solid (≥95% purity) and 40%±1.0% aqueous solution forms, featuring high solubility in water, strong alkalinity, and stable reducing properties.

Manufactured under strict quality control with advanced caustic soda absorption technology, our sodium hydrosulfide minimizes impurities (low Na₂S and NaOH residuals) to ensure consistent batch-to-batch quality. It serves as a versatile workhorse across key sectors: leather tanning (hide depilation), mining beneficiation (copper ore flotation), textile dyeing (sulfur dye auxiliaries), organic synthesis (intermediate production), and wastewater treatment.