Reliable Manufacturer Bulk Sodium Sulfide For Mining & Textile Dyeing

Industrial-grade sodium sulfide is a key inorganic sulfurizing raw material widely used in industries such as dyes, printing and dyeing, mineral processing, and leather tanning. In the dye industry, it is used to produce sulfur dyes, serving as a reducing agent to reduce aromatic nitro compounds and formulate black, blue, and brown sulfur dyes, which offer stable coloration and low production costs. In the printing and dyeing industry, it acts as a reducing agent for sulfur dyeing of textiles, removing impurities from fabrics, enhancing dye adhesion, and is suitable for processing coarse-spun cotton and linen fabrics. In non-ferrous metal ore beneficiation, it serves as a flotation precipitant to precipitate heavy metal ions such as copper, lead, and zinc, thereby separating valuable metals from ore and significantly improving mineral recovery rates. In leather processing, it is used in the depilation process to break down keratin on the hide surface, enabling rapid removal of animal hair and simplifying the pretreatment process for leather manufacturing. In wastewater treatment, it precipitates heavy metal pollutants, reducing the risk of heavy metal concentrations exceeding regulatory limits. It is also suitable for paper pulping, the preparation of rubber additives, and metal surface blackening treatments. In the chemical reagent industry, it is used in small quantities for the qualitative detection of heavy metals. Overall, it is highly versatile and serves as an essential basic inorganic salt in the light chemical and mining and metallurgy sectors. It has no approved applications in the food or pharmaceutical industries and is intended solely for large-scale industrial production.

Cenke Chemical was formally established in 2016, with its corporate headquarters strategically located in Dongying City, Shandong Province, a core hub for China’s petrochemical and new material industrial cluster. We operate as a professional integrated chemical trading enterprise dedicated to the global procurement, distribution and stable supply of premium industrial chemical products for worldwide manufacturers and industrial clients.

Our comprehensive product portfolio covers full-spectrum chemical categories, including basic bulk chemical raw materials, fine chemical intermediates, advanced innovative new materials and high-performance functional specialty materials. Each product line undergoes strict quality screening to meet international industrial standards, catering to diversified production and R&D demands across dozens of core industrial sectors.

We serve long-term cooperative customers spanning petrochemical processing, plastic manufacturing, pharmaceutical synthesis, water treatment, coating & paint, rubber production, textile printing and dyeing, new energy materials, environmental protection engineering and other key industries worldwide. Leveraging robust upstream factory partnerships, complete logistics support, standardized export packaging and efficient customs clearance capabilities, we deliver cost-effective, on-time and secure one-stop material supply solutions, building mutually beneficial long-term partnerships with suppliers and buyers globally.

The product strictly complies with the GB/T 2961-2014 national standard, accompanied by a complete set of MSDS, commodity inspection reports, and hazardous packaging certificates, and meets EU REACH import and export requirements. Standard packaging includes 200 kg galvanized closed-top steel drums and 1,000 L IBC containers. For large volumes, bulk transport via tank containers is available. Storing and transporting the product in a sealed, light-protected environment effectively delays oxidation and discoloration. Supply is stable and ample, supporting full-container and consolidated shipments for international trade, and meeting global chemical procurement and custom fine chemical production needs.