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An in-depth analysis of structural properties, commercial requirements, and critical applications in modern heavy industries.
Sodium Hydrosulphide 70% (NaHS), also known as sodium bisulfide, represents a critical sulfhydryl reagent widely implemented in industrial processes worldwide. At a 70% concentration, typically formatted as dry yellow or brown flakes, NaHS balances structural concentration, logistical cost-efficiency, and operational reactivity. It functions fundamentally as a reliable source of active sulfur, making it vital for copper and molybdenum flotation, heavy metal precipitation, and organic chemical synthesis.
From a chemical composition perspective, minimizing impurities—specifically iron (Fe), sodium carbonate ($Na_2CO_3$), and sodium sulfide ($Na_2S$)—is paramount to preserving reagent efficacy and preventing unexpected reaction byproducts. Selecting premium grade NaHS 70% ensures predictable kinetics in mining circuits and tanning drums alike.
| Chemical Parameter | Standard Specifications (70% Flakes) |
|---|---|
| Sodium Hydrosulphide (NaHS) Content | ≥ 70.0% Min |
| Sodium Sulfide (Na₂S) | ≤ 1.5% - 2.0% Max |
| Iron (Fe) Content | ≤ 10 ppm - 30 ppm (Low-Iron Grades Available) |
| Sodium Carbonate (Na₂CO₃) | ≤ 1.0% Max |
| Appearance | Yellowish crystalline flakes, highly hygroscopic |
The global market for Sodium Hydrosulphide is experiencing consistent volume growth, driven predominantly by the depletion of high-grade copper ores. Mining companies are forced to process complex, lower-grade deposits, requiring higher quantities of sulfidizing agents like NaHS 70% to achieve acceptable copper recovery rates.
Concurrently, environmental compliance programs across Europe, the Americas, and APAC are shifting the supply chain. Standard 70% flakes are highly favored over liquid variants (typically 30-45% concentration) for long-distance transport, as they significantly reduce freight weight, carbon footprint, and hazmat handling overheads.
A trusted partner listed on the stock market, delivering petrochemicals, mining chemicals, and logistics excellence since 2006.
Established in 2006, Shandong Pulisi Chemical Co., Ltd. (Stock Code: 307785) has evolved into a premier manufacturer and global supplier of chemical raw materials. We specialize in four core sectors: petrochemicals, mining chemicals, feed chemicals, and pharmaceutical chemicals. Over nearly two decades, we have established long-term, stable partnerships with Fortune Global 500 enterprises, including China National Petroleum Corporation (CNPC) and Saint-Gobain.
Our operational model prioritizes compliance, rapid response, and client-centric value creation. To ensure absolute supply chain integrity, Pulisi has established mature warehousing and distribution systems at key logistics hubs, including Qingdao Port, Tianjin Port, and strategic Xinjiang border ports (Alashankou, Khorgos), facilitating fast dispatch to global destinations.
Strict Corporate Statement: Shandong Pulisi has not established branches outside of Shandong Province. If there is any act of impersonating Shandong Pulisi, our company reserves the right to pursue legal responsibilities to protect our clients and brand reputation.
We supply high-demand industrial chemicals processed under strict quality controls and tailored to specific regional certifications.
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Premium 70% flakes optimized for metal extraction and leather dehairing applications.
Delivering high-purity chemical raw materials to diverse industrial processes and mining operations across the globe.
Navigating complex international regulations, safety protocols, and supply chains for Sodium Hydrosulphide 70%.
Sodium Hydrosulphide 70% is classified under UN 2949, Class 8 (Corrosive, Solid). Safe shipping requires robust, moisture-proof packaging. We ship using UN-approved 25kg PP bags inside dry bags or steel drums with internal plastic liners to prevent exposure to ambient moisture, which can release toxic hydrogen sulfide ($H_2S$) gas.
To support global supply chains, we operate regional distribution depots close to crucial marine ports like Qingdao and Tianjin, as well as land border gates like Khorgos and Alashankou. This multi-hub structure minimizes local transit delays and allows for fast container dispatch to Central Asia, Europe, and the Americas.
Our production facilities maintain strict quality management system certifications, including ISO 9001:2015 and independent evaluations by German BV. For specialized sectors, we provide SGS inspection reports, Kosher, Halal, and FAMI-QS documentation to guarantee compliance with regional importing rules.
The chemical industry is evolving toward sustainability. Traditional synthesis of Sodium Hydrosulphide involves absorption of toxic hydrogen sulfide gas in sodium hydroxide solutions, which can carry volatile chemical carryover risks. Shandong Pulisi is active in refining closed-loop, emission-free recycling processes that capture sulfur byproducts from refinery systems to yield pure, industrial-grade NaHS. Our clean process lowers the overall carbon footprint per ton of chemical output while maintaining standard 70% active material content.
By managing iron impurities down to ≤10 ppm, our low-iron Sodium Hydrosulphide prevents discoloration in high-grade leather production and avoids catalyst poisoning during organic chemical synthesis. This focus on impurity control makes our products well-suited for demanding global supply operations.
We deliver customized logistical plans, proven quality, and clear cost management for demanding industrial operations.
Successfully shipping chemical materials to over 100 countries. We handle cross-border transport, customs clearance, and local compliance requirements.
Founded in 2006, our team has built stable relationships with over 1,000 global partners, including Fortune 500 enterprises.
Supported by ISO, SGS, Kosher, Halal, K-REACH, and FAMI-QS certifications. We run detailed batch test analyses before shipment.
Our direct factory operations and streamlined logistics allow us to offer stable, competitive contract pricing for long-term supply.
Our processes are certified under globally recognized standards to ensure regulatory compliance and product quality.
Shandong Pulisi Chemical Co., Ltd. has earned recognition from local and international oversight bodies. We have been awarded multiple honors, including Foreign-Oriented Economic Enterprise, Alibaba Demonstration Base, and Contribution Enterprise. In 2023, the company completed its public listing under Stock Code: 307785.
Our approach centers on operational integrity, rapid resolution, and close collaboration. These values enable us to serve as a reliable, long-term supplier of high-demand raw materials.
Active participation in trade expos keeps us connected to global market requirements. These international events allow us to update our practices and ensure our chemical solutions align with the current operational demands of our clients.
We work with established names in global industry, energy, and logistics to maintain reliable supply pipelines.
Answers to common technical, logistics, and purchasing questions regarding Sodium Hydrosulphide and general supply.
Additional products from our verified facilities, ready for international shipment and customs clearance.
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