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A comprehensive analysis of structural attributes, performance matrices, and cost structures for global industrial procurers.
Sodium Sulfide ($Na_2S$), specifically refined in the form of 60% Red Flakes, is a staple workhorse of the global chemical supply chain. Its primary industrial classification as an inorganic salt hydrate highlights its deep utility. The chemical structure of the 60% active grade typically represents the hydrated form ($Na_2S \cdot xH_2O$), which reaches thermodynamic equilibrium at approximately 60% concentration, with the remainder composed of moisture and trace compounds.
The distinctive red or reddish-brown coloration is attributed to the inclusion of trace metals, specifically iron ($Fe$), during processing. While yellow flakes are strictly processed under low-iron specifications (<15 ppm), Red Flakes represent a highly cost-efficient alternative containing controlled iron fractions (typically <1500 ppm), optimal for operations where minor iron concentrations do not compromise the end-product integrity.
| Parameter | Specification Limit |
|---|---|
| Sodium Sulfide ($Na_2S$) Content | ≥ 60.0% min |
| Iron ($Fe$) Content | ≤ 1500 ppm max |
| Sodium Carbonate ($Na_2CO_3$) | ≤ 2.0% max |
| Insoluble Matter in Water | ≤ 0.20% max |
As the international community marches toward stringent sustainability parameters, the technical roadmap of Sodium Sulfide production is witnessing a paradigm shift. The conventional calcination method—reducing Sodium Sulfate ($Na_2SO_4$) utilizing coal carbon sources—is progressively being optimized through integrated carbon capture technologies and high-efficiency rotary furnaces. This transition minimizes carbon dioxide emission parameters while drastically stabilizing active sulfur retention rates in the finalized red flakes.
Furthermore, clean processing systems are being implemented to minimize hydrogen sulfide gas emission potentials during the dilution and crystallization phases. Looking toward 2030, the market trajectory is pivoting toward intelligent crystallizing lines. By stabilizing the crystallization cooling rate, manufacturers can control flake thickness, minimizing fine chemical dust formation during transit and improving dissolution kinetics in industrial mixers.
Fulfilling Global Chemical Demands with Certified Logistics and Scale Since 2006 (Stock Code: 307785)
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.
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.
How Shandong Pulisi Chemical integrates advanced automation to secure supply continuity and cost superiority.
Our processing lines utilize closed-loop, automated instrumentation controls from raw coal reduction of barium/sodium sulfate down to flake crystallization. This limits human variation, ensuring high purity levels across batch runs.
Classified as a Class 8 Corrosive Substance under international dangerous goods protocols (UN 1849, PG II), Sodium Sulfide demands strict cargo care. We deploy moisture-impermeable PP/PE woven bags with inner lining, protecting against oxidation.
We host dedicated dangerous goods warehousing complexes at Qingdao Port, Tianjin Port, and major land bridges in Alashankou/Khorgos, minimizing the transit window from factory to ship hold.
For multinational corporations and public enterprises, importing chemicals requires navigating compliance, customs documentation, and supply chain security. As a listed enterprise (Stock Code: 307785), Shandong Pulisi ensures regulatory alignment for all incoming orders. We actively maintain certificates across jurisdictions, including European Union K-REACH clearances and feed-additive-compliant certifications like FAMI-QS.
Our corporate culture philosophy—"Customer First, Rapid Response; Striving as the Foundation, Efficient Collaboration; Integrity and Uprightness, Agile Adaptation"—drives our sales and logistics divisions to assist you in every step of the customs and import processes.
Verifiable proof of high quality standards, safety procedures, and global regulatory compliance.
Building long-term international trade bridges and local partnerships face-to-face.
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.
High-purity organic compounds, basic salts, and industrial processing materials.
Delivering high-purity inputs for raw material processing, manufacturing, and environmental technology.
Combining reliable manufacturing, quality verification, and dynamic cargo logistics.
We regularly export to more than 100 countries and regions with fully integrated border storage support.
More than 20+ years of export experience, maintaining active cooperation with over 1,000 corporate clients.
Certified ISO9001:2015, SGS, Kosher, Halal, K-REACH, and FAMI-QS registered processes.
We leverage industrial-scale manufacturing efficiency to offer competitive pricing on bulk chemical quotes.
We maintain regional warehousing facilities across Qingdao Port, Tianjin Port, and Central Asian borders for swift transit.
Our responsive sales and logistics support staff address inquiries within 24 hours.
Collaborating with Global Fortune 500 enterprises and international chemical distributors.
Get answers to chemical specifications, order structures, shipping limits, and sourcing logistics.
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Pulisi
