Solvent Naphtha C9 (commonly referred to as C9 aromatic hydrocarbon solvent, CAS No. 64742-95-6) is a vital category of heavy aromatic reformate products utilized across diverse heavy industries worldwide. As a complex mixture of aromatic hydrocarbons primarily consisting of C9 alkylbenzenes (such as trimethylbenzenes, methylethylbenzenes, and propylbenzenes), this solvent grade is globally characterized by its exceptionally high solvency power, high boiling range (150–200°C), and relatively high flash point. These attributes make it an indispensable raw material for manufacturing high-grade stoving enamels, industrial coatings, agricultural pesticide emulsifiable concentrates (EC), printing inks, and specialized chemical intermediates.
On a global scale, the industrial demand for C9 Solvent Naphtha is deeply correlated with infrastructural expansion, advanced automotive coating technologies, and localized crop protection practices. Traditionally, chemical giants in North America and Western Europe set the standard for high-purity aromatic solvents. However, with shifting economic centers and structural transitions in petro-refinery operations, the center of gravity for Solvent Naphtha C9 manufacturing has steadily migrated to Eastern Asia, particularly China. As modern refineries integrate downstream petro-chemical complexes, Chinese manufacturers have established a comprehensive industrial matrix capable of outputting ultra-pure, low-naphthalene variants that address both high-performance and strict environmental regulations globally.
Founded in December 2004, Shandong Saier Chemical Technology Development Co., Ltd. has grown from a regional producer into a globally recognized heavyweight in the fine chemical industry. Situated at No. 207, WeiLiu Road, Qilu Chemical Industrial Park, Linzi, Zibo City, Shandong Province, the company occupies a geographically and strategically superior location inside one of China’s most advanced chemical manufacturing hubs. With an initial registered capital of 60 million yuan, Saier Chemical laid a highly resilient financial and operational foundation designed to sustain heavy industrial refinement operations over decades.
Saier Chemical's production capacity has scaled to a massive 720,000 tons per year. The company’s core focus centers on producing environmentally friendly high-boiling aromatic solvents, including S-100, S-150, S-150ND (Naphthalene Depleted), S-180, and S-200. In addition to these primary solvents, the factory produces high-demand chemical intermediates and specialty products such as Durene (1,2,4,5-Tetramethylbenzene), Pyromellitic Acid (PMA), Heat Transfer Oil L-QC320, and fine chemical products like thiophene, 1,3-Cyclohexanedione, TMG, MIPK, and others.
Our raw material supply chain relies on strategic partnerships with domestic petroleum giants, including Sinopec, PetroChina, ChemChina, Zhejiang Petrochemical, and Hengli Petrochemical. This guarantees a continuous, stable stream of high-grade crude C9 and C10 aromatics feedstock. By feeding state-of-the-art fractional distillation towers with consistent quality raw materials, Shandong Saier Chemical ensures its final solvents reach a degree of chemical uniformity unmatched by smaller, independent producers.
Our industrial park houses advanced distillation units, automated packaging lines, and dedicated quality-control labs working 24/7. Saier Chemical implements a strict ISO-certified quality management framework to monitor isomer concentration, sulfur content, and distillation ranges down to parts-per-million accuracy.
Located in the heart of Zibo’s Qilu Chemical Industrial Park, we enjoy immediate access to national transport pipelines, highways, and major commercial shipping ports. This minimizes land logistics costs and speeds up international shipping schedules.
With 60 million RMB in registered capital and a continuous cycle of reinvestment, Saier Chemical can absorb macro-economic market fluctuations, maintaining price stability and stock availability even during supply crises.
Secured long-term raw material agreements with state-owned giants such as Sinopec and PetroChina, as well as ultra-modern private refiners like Zhejiang Petrochemical, ensure zero contamination from the source.
Offering a complete sequence of high-boiling aromatic solvents (S100 to S200), low-naphthalene grades for pesticide formulations, and highly specialized organic intermediates like Durene and PMA under one roof.
Operating at a licensed capacity of 720,000 tons per year, we possess the scale to meet high-volume orders for multinational paint companies, large agrochemical blenders, and global chemical distributors.
Recognized as a National High-Tech Enterprise in China, we run optimized distillation column operations that consume less energy, output fewer VOC emissions, and produce pure fractions with tight boiling ranges.
The operational efficiency of Solvent Naphtha C9 is determined by its molecular composition. Composed primarily of aromatic rings, this solvent features high solvency power, characterized by high Kauri-Butanol (KB) values—typically exceeding 90. This high KB value enables the clean dissolution of complex natural and synthetic resins, including alkyds, epoxies, acrylics, and polyurethanes, making it the solvent of choice for formulating high-performance coatings.
Below are the primary industry verticals utilizing C9 Solvents:
In the coatings industry, Solvent Naphtha C9 is widely used to balance evaporation rates and improve film leveling. Its high boiling range ensures the wet paint film remains open long enough for air bubbles and surface irregularities to escape, preventing common defects like pinholing, orange peel, and cratering. This is particularly critical in automotive OEM basecoats, coil coatings, and container coatings where flawless surface finishes are mandatory.
Agricultural formulations require chemically inert, highly stable carrier solvents to dissolve active crop-protection ingredients. Solvent Naphtha C9 (especially low-naphthalene grades) is highly favored for this purpose. Its strong solvency power keeps active ingredients dissolved at high concentrations, preventing precipitation even under cold storage conditions. Additionally, its low phytotoxicity ensures it does not harm crops during application.
In screen printing and high-speed rotary printing, ink drying speeds must be controlled precisely to prevent premature drying on rollers while ensuring rapid setting on substrates. C9 aromatic solvents provide the necessary solvency-drying balance. In structural adhesives, they modify viscosity and enhance tackiness without degrading structural polymer backbones.
Boiling Range: ~160–180°C. Composed of C9 aromatics. Colorless, transparent liquid. Highly compatible with alkyd resins, industrial stoving enamels, and screen-printing ink formulations.
Boiling Range: ~180–210°C. S150ND stands for Naphthalene Depleted (typically <1% naphthalene), catering to strict VOC limits and pesticide toxicity regulations globally.
Boiling Range: >210°C. Formulated for high-temperature stoving paint applications, heavy industrial coatings, corrosion inhibitors, and deep-well oil field operations.
For chemical procurement directors across Europe, the Americas, and Southeast Asia, buying high-boiling solvents in bulk involves navigating volatile petrochemical feedstock prices, complex maritime freight logistics, and strict purity compliance requirements. To mitigate supply-chain risks, modern purchasing frameworks look beyond cost per ton to evaluate a manufacturer’s E-E-A-T credentials, financial stability, and long-term production resilience.
Stable raw material supply chains prevent downstream delivery delays. Shandong Saier’s deep partnerships with major refineries like Sinopec and PetroChina guarantee our operations remain unaffected during sudden crude allocation cuts. Buying from a manufacturer with secure, direct refiner allocations protects buyers from sudden production interruptions.
Exporting to Europe requires strict REACH registrations. Similarly, shipping to North America or Japan requires standardized GHS safety data sheets (SDS) and clear hazard labels. Furthermore, the global coatings and pesticide industries are increasingly adopting low-naphthalene standards (like S150ND and S200ND, where naphthalene is reduced below 1% or even 0.1%). Purchasing from an advanced manufacturer capable of refining out naphthalene is critical for maintaining compliance in highly regulated markets.
High-volume organic solvents are typically shipped in bulk chemical tankers, ISO tanks, or 200L steel drums. Shandong Saier’s location in the Qilu Chemical Industrial Park provides access to Zibo's advanced rail networks and key maritime hubs, including Qingdao Port. This integrated infrastructure ensures seamless customs clearance, cost-effective ocean freight rates, and on-time shipments.
The global chemical industry is undergoing a major transition focused on reducing energy consumption and greenhouse gas emissions. As a Chinese National High-Tech Enterprise, Saier Chemical continues to optimize its fractionating columns to recover waste heat, minimize VOC emissions, and improve product recovery. By investing in these sustainable processes, we help global buyers reduce their Scope 3 supply-chain carbon footprints without compromising solvent quality.
Saier Chemical
