Premium chemical materials and components synthesized under strict ISO & CE parameters, serving over 100 countries.
Founded in 2006, Shandong Pulisi Chemical Co., Ltd. (Stock Code: 307785) has developed into a premier industrial manufacturing and chemical distribution superpower. We specialize in synthesizing and engineering high-purity inorganic salts, petrochemical derivatives, water treatment additives, and feed-grade chemical compounds. Driven by a culture of rapid adaptability and customer value creation, we run fully compliance-regulated, automated manufacturing operations in Shandong, China.
Sodium Metabisulfite ($Na_2S_2O_5$, SMBS), also referred to as sodium pyrosulfite, is a cornerstone of modern manufacturing. Our manufacturing methodology uses advanced gaseous sulfur dioxide condensation to ensure the final powder and crystalline outputs boast minimal heavy metal content, high active $SO_2$ concentration, and zero physical impurity contamination. With standard CE Certification, our material aligns with strict European Economic Area (EEA) safety, health, and environmental compliance frameworks, making it a reliable chemical option for global markets.
By operating a direct pipeline of collaboration with top industrial conglomerates, including China National Petroleum Corporation (CNPC) and Saint-Gobain, Pulisi provides stable chemical supplies. We offer customized packaging, variable purity configurations, and reliable supply lines that reduce procurement risks for global buyers.
Our Sodium Metabisulfite undergoes rigorous refining processes to achieve maximum purity, stability, and compatibility across industrial, water-treatment, and food applications.
| Parameter Profile | Industrial High-Grade | Food / Feed Additive Grade | Testing Methodology |
|---|---|---|---|
| Sodium Metabisulfite ($Na_2S_2O_5$) Purity | ≥ 97.5% | ≥ 98.0% | GB/T 1893-2008 / Titration |
| Sulfur Dioxide ($SO_2$) Active Agent | ≥ 65.5% | ≥ 66.0% | Iodometric Titration |
| Iron Content (Fe) | ≤ 0.003% (30 ppm) | ≤ 0.001% (10 ppm) | Spectrophotometry |
| Heavy Metals (as Pb) | ≤ 0.001% (10 ppm) | ≤ 0.0005% (5 ppm) | Atomic Absorption Spectroscopy |
| Arsenic (As) | ≤ 0.0002% (2 ppm) | ≤ 0.0001% (1 ppm) | ICP-MS Analysis |
| Water Insolubles | ≤ 0.05% | ≤ 0.02% | Gravimetric Method |
| pH Value (5% Aqueous Solution) | 4.0 - 4.8 | 4.0 - 4.6 | Electrometric Glass Electrode |
Engineered to perform in harsh industrial environments, our SMBS serves as a critical reaction catalyst, reducing agent, and biological inhibitor.
Functions as a dechlorinating agent to neutralize excess chlorine in municipal plants and protect Reverse Osmosis (RO) membranes from oxidation. Effectively removes dissolved oxygen to prevent rust buildup in industrial boilers.
Serves as a depressant in copper-lead-zinc separation processes. In gold mining, it helps neutralize toxic cyanides in tailings before environmental release, ensuring compliance with local mining regulations.
Coded as E223, it acts as an antioxidant and anti-browning agent in dried fruits, starches, and seafood. In feed processing, it prevents mold and bacterial growth, preserving nutritional value and extending shelf life.
Used as an antichlor in textile bleaching, a reducing agent in dye applications, and a chrome tanning regulator in leather processing. In photography, it prevents developer solutions from oxidizing.
Our global operations are backed by key industry certifications, verifying compliance with international safety, environmental, and quality standards.
Pulisi maintains production standards through advanced process controls and continuous instrumentation feedback loop technology, reducing human error in synthesis and packaging.
Our logistics network is structured to support global supply lines. We run dedicated warehousing complexes at primary transport hubs, including Qingdao Port, Tianjin Port, and overland border portals like Alashankou and Khorgos. This configuration allows us to ship orders promptly, using multimodal ocean and rail routes to connect with buyers in Central Asia, Europe, and the Americas.
Shandong Pulisi Chemical Co., Ltd. operates solely from Zibo, Shandong Province, and has not established subsidiary branches or manufacturing sites outside of Shandong. To ensure product authenticity and transaction security, please work directly through our verified channels.
Developing cleaner chemical processing methods to improve purity, reduce energy consumption, and lower environmental impact.
Integrating chemical off-gas capture systems to reuse industrial sulfur dioxide, lowering carbon emissions per ton of Sodium Metabisulfite produced.
Refining crystallization parameters to produce uniform, dust-free particles with high moisture resistance. This improves storage life and handling in humid conditions.
Applying multi-stage chemical precipitation filters to reduce iron (Fe) and arsenic (As) concentrations to meet strict food-grade and photographic requirements.
Deploying nitrogen-purged packaging machines to seal pallets securely, keeping the product dry and stable during long maritime shipments.
Industrial buyers require chemical partners that offer product reliability, compliance documentation, and stable logistics. Our operational framework is structured to meet these requirements.
Exporting chemical materials to over 100 countries with complete customs compliance and transit insurance.
20+ years of export experience, providing chemical solutions and account management to more than 1,000 corporate clients.
Certified to ISO 9001, SGS, Halal, Kosher, and K-REACH specifications, ensuring clean batch tracing.
Custom packaging, custom grain sizes, and tailored purity specifications are offered at competitive rates.
We maintain regional warehousing near major ocean ports to reduce container loading times to 3–7 business days.
Our sales engineering team provides technical support and after-sales documentation within 24 hours.
We participate in global trade shows to engage with partners and discuss shifting requirements in green chemistry and supply chain operations.
Preserving raw integrity through professional global logistics networks, direct from our production facility.
Professional technical and commercial answers addressing key questions for Sodium Metabisulfite sourcing and application.
Pulisi
