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Detailed structural analysis, molecular behavior, production dynamics, and key chemical classification parameters.
Sodium Sulfide ($Na_2S$), in its commercial hydrated flake form, is a high-demand inorganic compound known for its strong alkaline property and reductive capabilities. Most commonly supplied as 60% Min. Yellow/Red Flakes, the concentration profile determines its operational efficacy within major process systems. Low iron sodium sulfide flakes (specifically with an iron threshold below 10ppm to 30ppm) prevent heavy-metal contamination during precise organic synthesis, leather tanning, and dye processing.
Understanding the molecular properties of sodium sulfide is critical for optimizing industrial chemical reactions. The compound displays high water solubility and is hygroscopic, readily absorbing atmospheric moisture. This rapid hydration behavior requires hermetic packaging safeguards to ensure physical stability during long-term storage and maritime transit.
| Parameters | Low Iron Grade | Industrial Grade (Yellow) |
|---|---|---|
| Sodium Sulfide ($Na_2S$) | 60.0% Min | 60.0% Min |
| Iron Content ($Fe$) | ≤ 10-30 ppm | ≤ 150-1500 ppm |
| Sodium Carbonate ($Na_2CO_3$) | ≤ 2.0% | ≤ 5.0% |
| Water Insolubles | ≤ 0.2% | ≤ 0.4% |
Exploring how Sodium Sulfide Flakes drive core heavy industrial workflows across major worldwide markets.
In global mining regions (such as Chile, Peru, and Australia), Sodium Sulfide is widely utilized as a sulfidizing agent for copper, lead, and zinc oxide minerals. It reactivates oxidic ores to enhance xanthate collector attachment. Additionally, it serves as an effective depressant for copper and iron sulfides in molybdenite flotation separation lines.
For leather manufacturing centers in Europe and Southeast Asia, $Na_2S$ is the primary unhairing agent. It breaks disulfide cross-links in hair proteins, enabling efficient hair removal from raw hides. Low-iron flakes are highly preferred in premium leather processing to prevent dark iron stain deposits on processed skins.
In highly regulated chemical manufacturing and urban waste systems, Sodium Sulfide reacts with soluble heavy metal ions (such as mercury, cadmium, and lead) to precipitate insoluble metal sulfides. This provides a highly reliable way to meet strict effluent discharge standards globally.
Serving diverse industrial and mining supply sectors worldwide with certified chemical products.
Chemicals For Textile, Printing & Dyeing & Leather
Agricultural Chemicals, Food And Feed Additives
Chemicals For Construction And Coatings
Chemicals For Mining
Chemicals For Oil Drilling
Disinfectant And Solvent Chemicals
Chemicals For Water Treatment
Plastic Raw Material
How our modern synthesis methodologies align with green industry initiatives and global environmental standards.
Commercial production of Sodium Sulfide primarily utilizes the reduction of sodium sulfate ($Na_2SO_4$) with carbon sources (like coal) at high temperatures (900-1000°C), followed by hot water leaching, filtration, and crystallization into flakes. Our manufacturing sites leverage advanced crystallization controls to ensure uniform flake size, minimizing dust during customer handling.
Alternative pathways include the reaction of hydrogen sulfide gas ($H_2S$) from refinery or organic chemical processes with sodium hydroxide ($NaOH$). This yields extremely high-purity, low-iron yellow flakes, preferred for advanced electronics and dyeing industries.
Sodium Sulfide is classified under UN 1849 as a Class 8 Corrosive material (Packing Group II). Because it releases toxic hydrogen sulfide gas upon exposure to moisture or acids, it requires precise transport handling. We provide heavy-duty, double-layer woven polypropylene bags with PE inner liners (typically 25kg or 1500kg bags) that prevent moisture intake and product degradation during transit.
A Publicly Listed B2B Chemical Enterprise (Stock Code: 307785) Serving Global Industrial Leaders.
Shandong Pulisi Chemical Co., Ltd. was established in 2006 (Stock Code: 307785). The company focuses on petrochemicals, mining chemicals, feed chemicals, and pharmaceutical chemicals. At present, the company has established long-term and stable partnerships with Fortune Global 500 companies such as China National Petroleum Corporation and Saint-Gobain. We always take customer demand as the core orientation and provide tailored solutions to help customers strengthen their market competitiveness.
The company has passed ISO9001:2015 Quality Management System Certification and German BV Certification, and has been awarded multiple honors such as Foreign-Oriented Economic Enterprise, Alibaba Demonstration Base, and Contribution Enterprise. In 2023, the company successfully went public with stock code: 307785.
The company upholds the corporate culture philosophy of "Customer First, Rapid Response; Striving as the Foundation, Efficient Collaboration; Integrity and Uprightness, Agile Adaptation." We focus on providing compliant and high-quality products and supporting services, and are committed to becoming a long-term and stable partner for customers.
Meanwhile, the company has established mature warehousing and distribution systems at key logistics hubs, including Qingdao Port, Tianjin Port, and Xinjiang border ports (Alashankou, Khorgos). We are able to provide flexible supply solutions according to customer needs to ensure timely order delivery. No matter where customers are located, Shandong Pulisi Chemical will safeguard their business development with professional service systems and efficient response capabilities.
We always adhere to the mission of "creating value for customers and making their products better," based on reputation and guaranteed by service. We look forward to strengthening cooperation with partners to create a future together!
Shandong pulisi has not established branches outside of Shandong Province. If there is any act of impersonating Shandong Pulisi, our company will reserve the right to pursue legal responsibilities.
Establish Year
Years of B2B Experience
Export Countries & Regions
Partner Companies Worldwide
Providing reliable and certified industrial salts, formate buffers, and sulfides.
Meeting requirements with international standards, quality guarantees, and stable supply capabilities.
Direct manufacturing exports to more than 100 countries and regions with custom freight logistics coordination.
20+ years of export experience, maintaining long-term partnerships with over 1,000 global companies.
Certified under ISO 9001:2015, SGS inspections, K-REACH pre-registration, and FAMI-QS guidelines.
Custom pricing models tailored to batch quantities, specialized packing, and contract manufacturing.
Strategic warehousing at Qingdao Port, Tianjin Port, and Xinjiang border land ports enables fast delivery.
Experienced sales representatives and technical support teams handle documentation and after-sales service.
Verified chemical standards and third-party inspection certifications from SGS, BV, Kosher, and Halal agencies.
Working with partners at top chemical trade shows and industrial exhibitions worldwide since 2006.
Since its establishment in 2006, the company has always adhered to the core corporate philosophy of "industrial, mining, and chemical raw material supply service provider", and is committed to becoming a leading global supplier of chemical raw materials. We adhere to the strategic orientation of "focusing on the development of quality chemical industry", which is not only reflected in our unremitting pursuit of product quality, but also in our continuous investment in technological innovation and service optimization. We are well aware that sustainable development is the source of vitality for enterprises, so the company attaches great importance to environmental protection and social responsibility, striving to promote economic development while safeguarding our shared blue sky and green space. We will continue to uphold our original intention, enhance our research and development capabilities, optimize supply chain management, and further enhance our core competitiveness. We look forward to working together with global partners to create a more brilliant tomorrow in the chemical industry!
Collaborating with Fortune Global 500 chemical companies and key industrial suppliers.
Technical and procurement answers about shipping, custom formulation, and compliance guidelines.
Of course you can. Just send us your logo design and package artwork, and our compliance and logistics team will adapt the labeling to match both your brand rules and hazardous transport regulations.
If you are a small retailer or entrepreneur, we would absolutely love to grow with you. We look forward to building a long term relationship with you.
We always put our customers' interests first. Prices are negotiable under different conditions, and we guarantee that you will get the most competitive price based on batch quantities and raw material costs.
Yes, we provide free samples (usually up to 500g) for initial laboratory testing. Shipping or courier costs are generally arranged by the buyer.
Yes, of course! We have been specializing in this field for many years and many of our customers have made deals with me because we can deliver on time and guarantee top quality goods! Our warehousing locations at major sea ports minimize handling delays.
We accept T/T, L/C, D/P, and O/A. Third-party trade financing or bank guarantees can be arranged through compliance review.
Of course, you are very welcome to visit our company in Zibo, China. (1.5 hours drive from Jinan). Our team will assist with scheduling, logistics, and facility visits.
You can send an inquiry directly to our sales representative for detailed order information, and we will explain the contract, logistics timeline, and shipping terms to you.
Explore our full line of functional additives, solvents, and specialty chemicals for global industrial demands.
Pulisi
