Premium grade industrial materials sourced directly with factory pricing and certified global delivery logistics.
A comprehensive analysis of market dynamics, manufacturing breakthroughs, and the evolution of CAS 108-31-6 procurement.
Maleic Anhydride (CAS 108-31-6) stands as one of the most critical organic chemical intermediates globally. With an industrial structure that feeds directly into polymer engineering, resins, and specialized additives, the stability of its supply chain impacts downstream markets valued in the hundreds of billions of dollars. Historically, Maleic Anhydride was produced primarily via the oxidation of benzene. However, due to stringent environmental regulations, feedstock cost pressures, and a push toward sustainable manufacturing, the industry has undergone a structural shift toward the n-butane oxidation process.
Today, n-butane-based production accounts for more than 85% of global capacity. This modern catalyst-driven process yields higher raw material efficiency, generates fewer greenhouse gas emissions, and integrates seamlessly into localized circular chemical economies. As global demand surges for Unsaturated Polyester Resins (UPR), agricultural chemistry, and eco-friendly plasticizers, identifying a reliable supplier capable of delivering high-purity Maleic Anhydride with consistent chemical specs and competitive quotes is paramount for industrial procurement teams.
Environmental compliance and regional gas dynamics have concentrated modern, scale-efficient production in chemical hubs such as Shandong, China. Plants operating fluidized-bed reactor technology produce high yields with reduced carbon intensity.
By leveraging direct access to massive n-butane pipelines and refinery byproducts via partnerships with state-owned enterprises, leading factories maintain highly stabilized production cost profiles regardless of global oil market shocks.
The push for sustainable plasticizers and bio-degradable polymers (such as PBAT) has elevated Maleic Anhydride from a simple resin reactant to a core building block for eco-friendly consumer and industrial products.
Procuring chemical raw materials requires balancing price, purity, and shipping reliability. Chinese manufacturers—most notably located in the industrial chemical zones of Shandong Province—have engineered unmatched supply chain optimization. The integration of upstream cracking plants with downstream crystallization processes eliminates transportation overhead, allowing factories to pass direct savings to global customers.
At Shandong Pulisi Chemical Co., Ltd., this manufacturing model is pushed to its highest potential. By building deep logistical ties to key northern ports (Qingdao and Tianjin) and establishing strategic storage facilities at critical border gateways like Khorgos and Alashankou, we bypass common supply chain friction. Orders are processed, loaded into specialized, moisture-controlled shipping containers, and routed using optimized rail and maritime pathways to over 100 countries.
Understanding the grade variations is key to maximizing downstream chemical synthesis efficiency.
| Specification Parameter | High-Purity Industrial Grade (Briquette/Flake) | Molten Liquid Grade | Analytical Verification Method |
|---|---|---|---|
| Appearance | Pure white briquettes or crystalline flakes | Clear, colorless liquid | Visual Inspection |
| Maleic Anhydride Content | ≥ 99.5% Min | ≥ 99.7% Min | Gas Chromatography (GC) |
| Molten Color (APHA) | ≤ 20 Max | ≤ 15 Max | Colorimetry (Pt-Co Scale) |
| Solidification Point | ≥ 52.5 °C | ≥ 52.6 °C | ASTM D1493 Standard |
| Maleic Acid Content | ≤ 0.3% Max | ≤ 0.1% Max | Potentiometric Titration |
| Ash Content | ≤ 0.005% Max | ≤ 0.003% Max | Gravimetric Burn Test |
*Note: In transit, solid Maleic Anhydride must be kept below 35°C in a well-ventilated, dry warehouse. Liquid molten storage requires specialized thermal-insulated ISO tanks to prevent crystallization.
From infrastructure reinforcing compounds to biodegradable polymer technologies, Maleic Anhydride powers major modern sectors.
How modern supply chains integrate environmental targets without sacrificing product purity or increasing procurement costs.
The industrial chemical sector is experiencing an unprecedented push towards decarbonization. Multi-national corporations, especially those in Western Europe and North America, are actively seeking chemical partners who comply with local and international environmental frameworks. REACH and K-REACH compliance, along with standardized carbon tracing, are shifting from optional value-adds to non-negotiable procurement requirements.
Furthermore, the development of bio-based co-monomers and high-performance engineering plastics requires raw inputs with extremely low metal and ash contents. Clean-running n-butane plants utilizing catalytic fluidized beds operate at much higher energy-neutral efficiency ratings compared to traditional benzene routes. This clean thermal efficiency lowers both the plant’s operating costs and the customer's downstream Scope 3 carbon calculations. Consequently, sourcing from modern Chinese plants enables buyers to hit pricing targets while satisfying carbon-neutrality milestones.
Proven customs clearance track record across major international borders, covering Europe, North America, Southeast Asia, and South America.
Two decades of refinement in complex organic chemical export protocols, hazardous material safety compliance, and multi-tier logistics handling.
Fully compliant with ISO 9001:2015, SGS inspection metrics, Halal, Kosher, and K-REACH safety declarations.
A Publicly Traded Leader in Industrial & Petrochemical Raw Materials (Stock Code: 307785)
Established in 2006, Shandong Pulisi Chemical Co., Ltd. (Stock Code: 307785) has evolved into a premier state-level chemical enterprise. Our core focus spans petrochemicals, mining flotation compounds, feed nutrition additives, and high-purity pharmaceutical intermediates. We are proud partners of multiple Fortune Global 500 giants, including China National Petroleum Corporation (CNPC) and Saint-Gobain, working jointly to secure materials that build the foundations of modern industry.
We operate under the philosophy of "Customer First, Rapid Response; Striving as the Foundation, Efficient Collaboration." By establishing state-of-the-art logistics hubs across the Chinese mainland—specifically at Qingdao Port, Tianjin Port, and crucial Xinjiang border ports (Alashankou, Khorgos)—we keep container flows active regardless of localized disruptions. Our operations are fully ISO9001:2015 and German Bureau Veritas (BV) certified, assuring chemical integrity from reactor to destination port.
A selection of high-demand industrial chemical commodities manufactured to precise purity thresholds.
Tested and approved by third-party authorities to guarantee absolute safety and batch conformity.
Connecting with international sourcing managers, building bilateral partnerships, and tracking chemical innovation.
Since our inception in 2006, Pulisi Chemical has maintained active engagement in primary global trade conferences, including CAC Shanghai, ChemSpec Europe, and localized chemical forums across South Asia and the Middle East. These events allow us to align our production schedules directly with the forecast demands of global paint manufacturers, polymer synthesizers, and agrochemical distributors.
Leveraging multi-port hubs to guarantee steady supply and fast sea/land transit.
Chemical logistics requires strict adherence to safety codes and transit guidelines. At Shandong Pulisi, we operate advanced cargo handling protocols across three primary strategic logistics channels:
Expert clarifications regarding purity metrics, pricing flexibility, contract execution, and shipment logistics.
Yes, absolutely. We support comprehensive OEM/ODM packaging requirements. You can supply your specific layout, trade markers, or compliance hazard labeling. Our automated packaging division will run test printing runs to ensure high-resolution application prior to dispatch.
Whether you represent a global chemical distributor or a smaller specialized compounding factory, we support scaling procurement volumes. We offer flexible Minimum Order Quantities (MOQs) and accommodate LCL (Less than Container Load) shipping consolidations to match your development trajectory.
We work to pass direct efficiency savings from our automated butane-oxidation lines to our clients. Quotes are dynamically calculated based on total volume requirements, contract length, packaging types, and baseline raw material indexes. We guarantee the most competitive quotes matching industrial high-purity specifications.
Yes. Providing free verification samples is standard to our E-E-A-T assurance pipeline. Let us know your grade requirements (Flake, Briquette) and shipping information, and we will route samples with full Certificates of Analysis (COA) for your lab evaluations.
We offer secure transaction terms to protect global procurement operations. We support T/T (Telegraphic Transfer), L/C (Irrevocable Letter of Credit) at sight, D/P (Documents Against Payment), and open accounts (O/A) for long-term partners with verified credit scores.
We welcome procurement teams and third-party inspectors to tour our primary production facilities in Zibo, Shandong Province, China. Our facilities are located roughly a 1.5-hour drive from Jinan Airport, and we assist with logistics and scheduling to ensure transparent quality inspections.
Every single batch of Maleic Anhydride is sampled and analyzed using Gas Chromatography (GC) to verify purity (≥99.5%). We check solidification points, APHA color scores, and ash contents, maintaining archived production specimens for up to two years to ensure transparent trace capabilities.
Maintaining long-term raw material supply relationships with industry leaders, including CNPC and Saint-Gobain.
Complete your chemical supply package with related organic synthesis and polymer formulation inputs.
Pulisi
