High-Quality Naphthalene PAH Manufacturer & Exporter

Empowering Global Industrial Value Chains with Sustainable Solvents, Ultrapure Intermediates, and Certified Regulatory Compliance

Premium Product Portfolio

Explore our leading range of high-purity industrial intermediates and specialized aromatic formulations engineered for exceptional performance.

Wholesale Pyromellitic Dianhydride（PMAD）CAS No.: 89-32-7 Supplier, Factory View Details

Wholesale 3'-Hydroxyacetophenone CAS:121-71-1 Manufacturers, Exporter View Details

Buy Cytosine CAS:71-30-7 Suppliers, Exporter View Details

High-Quality (R)-(+)-2-(4-Hydroxyphenoxy)propionic acid C9H10O4 CAS：94050-90-5 Exporters, Exporter View Details

Wholesale β-Methylnaphtalene Supplier, Manufacturer View Details

Buy Aromatic Solvent S100 CAS No.:64742-95-6 Suppliers, Manufacturers View Details

China 1,1,3,3-TETRAMETHYLDISILOXANE CAS:3277-26-7 Factory, Exporter View Details

China 1,3-Cyclohexanedione CAS:504-02-9 Manufacturers, Exporters View Details

Industrial Whitepaper: The Strategic Landscape of Naphthalene & Polycyclic Aromatic Hydrocarbons (PAHs)

Analyzing global supply chain movements, process optimization, and structural trends driving the fine chemical sector.

In the global chemical arena, Naphthalene and Polycyclic Aromatic Hydrocarbons (PAHs) serve as fundamental building blocks for synthesis. The transition toward high-purity, environmentally compliant derivatives is reshaping how global procurement pipelines source raw aromatics. Shandong Saier Chemical Technology Development Co., Ltd. is positioned at the intersection of process innovation and massive scale production, providing robust alternatives to conventional solvents.

The Chemical Profile of Naphthalene PAHs: Polycyclic Aromatic Hydrocarbons constitute a critical class of organic compounds containing two or more fused benzene rings. Naphthalene ($C_{10}H_8$), the simplest PAH, consists of a bicyclic structure, offering rich reactive pathways for electrophilic substitution. The commercial and industrial viability of naphthalene derivatives—such as alkylnaphthalenes (e.g., β-methylnaphthalene), durene, and pyromellitic dianhydride (PMAD)—stems from their unique thermal stability, high boiling points, and excellent solvency profiles. As industries move toward cleaner chemical systems, demand has surged for specialized solvents containing ultra-low levels of hazardous PAHs. This transition requires sophisticated crystallization, rectification, and hydrogenation processes that only highly equipped manufacturers can provide.

The Evolution of Modern Aromatic Solvents: Aromatic solvents like S-100, S-150, S-150ND (naphthalene depleted), and S-200 are widely utilized in agricultural formulations, high-performance industrial coatings, and printing inks. Historically, the presence of unregulated PAHs presented ecological challenges. Modern engineering, however, enables the selective removal or modification of these aromatic fractions. Shandong Saier Chemical has pioneered refining techniques that separate these high-value isomers while maintaining the core solvency power needed to dissolve complex active pharmaceutical ingredients (APIs) and agricultural formulations.

ESTABLISHED IN 2004

Shandong Saier Chemical: A Legacy of Engineering Excellence

Founded in December 2004, Shandong Saier Chemical Technology Development Co., Ltd. has developed from a local petrochemical processing facility into a major manufacturer of fine chemical intermediates and high-performance solvents. Located at No.207, WeiLiu Road, Qilu Chemical Industrial Park, Linzi, Zibo City, Shandong Province, the company benefits from a mature industrial ecosystem, advanced logistics infrastructure, and immediate access to upstream feedstock networks.

With a registered capital of 60 million yuan, Saier Chemical built its operations on sound financial planning and structural investments. In its early phase, the company focused on refining basic hydrocarbon cuts, developing a capacity for environmentally friendly high-boiling aromatic solvents, including TOPSOL, KOCOSOL, and SOLVESSO equivalent series. Our production incorporates raw materials sourced directly from major petrochemical complexes—such as Sinopec, PetroChina, ChemChina, Zhejiang Petrochemical, and Hengli Petrochemical—securing raw material consistency and trace-element control.

Today, Saier operates a world-class manufacturing complex with an annual throughput capacity of 720,000 tons. The company's products are widely distributed domestically across industrial hubs in Beijing, Shanghai, Tianjin, Hebei, Shandong, and Henan, while serving as a direct strategic supplier to Sinopec and PetroChina. Globally, Saier has expanded its footprint to serve key markets across Asia, Europe, North America, and Southeast Asia, positioning itself as a reliable partner in the international chemical supply chain.

Shandong Saier Chemical Factory and Distillation Columns

720,000

Annual Capacity (Tons)

60M

Registered Capital (RMB)

2004

Year of Establishment

50+

Global Export Markets

Global Procurement Needs & Industry Trends

Why procurement teams and chemical distributors choose Shandong Saier Chemical to stabilize their supply chains.

Supply Security

Geopolitical changes and petrochemical feedstock fluctuations require resilient sourcing pipelines. Our direct partnerships with major refineries ensure a consistent supply of precursor chemicals.

Low-Naphthalene Solvents

Tighter environmental and health regulations globally require agricultural and industrial coatings to utilize low-naphthalene and naphthalene-depleted solvents (ND grade).

Functional Customization

Modern chemical applications require custom isomer ratios and precise physical attributes. We supply tailor-made cuts of methylnaphthalenes and dianhydrides to match precise research specs.

Stringent Quality Control

With ISO certificates, gas chromatography verification, and dedicated batch tracking, we meet the rigorous quality standards required by international chemical distributors.

Macro Industry Solutions & Downstream Applications

Saier Chemical's products are integrated into essential sectors, driving industrial reliability and product efficacy.

Our product groups are designed to address challenging applications in synthesis, heat management, and formulation chemistry:

Agricultural Chemical Carriers (EC, EW, SC Formulations): Low-naphthalene aromatic solvents (S-150ND, S-200ND) are critical for formulation safety. Because naphthalene crystallizes at low temperatures, depleted fractions are required to maintain active ingredients in solution during transport and storage.
Advanced Electronics & Polyimide Films: Pyromellitic Dianhydride (PMAD) serves as a primary monomer in the synthesis of high-performance polyimide (PI) films. These materials provide the thermal stability and dielectric properties required in modern microelectronics, aerospace wiring, and flexible printed circuit boards (PCBs).
Industrial Heat Transfer Systems: Our Heat Transfer Oil L-QC320 is formulated to resist thermal cracking, oxidation, and sludge formation in closed-loop heat transfer networks operating at up to 320°C. This product is widely used across petrochemical, textile, and manufacturing plants.
Advanced Coatings & Polymers: Durene (1,2,4,5-tetramethylbenzene) is a key intermediate in the manufacture of high-performance plastics, special resins, and curing agents, ensuring excellent chemical resistance and mechanical durability.

Advanced Chemical Research Laboratory and Testing Facility

Technical Innovation & Environmental Stewardship

In response to the growing global demand for energy-efficient and environmentally responsible chemical production, Shandong Saier Chemical has optimized its primary refining processes. By implementing energy integration schemes and closed-loop condensation units, the factory has reduced thermal waste and emission levels.

Recognized as a National High-Tech Enterprise, Saier Chemical has invested in refining technologies that improve resource recovery. Our modern processing plant is designed to optimize feedstock use, helping downstream clients lower their scope 3 emissions through efficient sourcing.

Localized Support & Regulatory Compliance

Ensuring compliance, documentation clarity, and supply chain security across international borders.

REACH & Global Regulatory Alignment

Exporting chemicals to Europe, North America, and Northeast Asia requires adherence to strict chemical registration databases. We actively support REACH registration processes, and provide complete GHS-compliant Safety Data Sheets (SDS) and toxicological dossiers. Our compliance team closely monitors updates to ECHA (European Chemicals Agency) lists to keep our products aligned with global regulations.

ISO Container Packing & Global Logistics

Transporting hazardous and non-hazardous liquid aromatics requires specialized equipment and logistics planning. Saier Chemical coordinates deliveries via ISO tanks, flexibags, and standard steel drums. Our proximity to major shipping ports in eastern China enables reliable scheduling and direct dispatch to main international shipping lanes.

Technical Roadmap & Future Outlook

Innovation plans, decarbonization targets, and the next generation of industrial aromatics.

As the global chemical industry works toward carbon neutrality and stricter regulatory frameworks, the technology driving aromatic synthesis must evolve. Shandong Saier Chemical has established a clear technical roadmap focused on three key areas:

1. High-Vacuum Rectification

Expanding our high-vacuum fractionating systems to separate close-boiling isomers with lower energy consumption, producing solvents with extremely low impurity levels.

2. Green Catalytic Alkylation

Transitioning from traditional acid catalysts to recyclable solid acid zeolites to eliminate corrosive wastewater and increase process selectivity.

3. Trace PAH Removal

Developing advanced post-treatment purification steps to lower trace naphthalene content in agricultural solvents to under 0.1%, satisfying strict eco-toxicity criteria.

Technical Q&A / Frequently Asked Questions

Common questions from chemical procurement teams and process engineers.

Q1: What are the differences between standard Aromatic Solvent S-150 and Aromatic S-150ND?

A: The primary difference lies in the naphthalene content. Standard S-150 contains approximately 5% to 10% naphthalene by weight. The "ND" (Naphthalene Depleted) version undergoes an additional distillation step to reduce naphthalene content below 1% (and in some high-purity grades, below 0.1%). This is required for agricultural formulations to prevent crystallization at low temperatures and to comply with modern health regulations.

Q2: How does Shandong Saier Chemical secure feedstock quality for its 720,000-ton capacity?

A: We source our feedstocks directly from major state-owned and private petrochemical facilities in China, including Sinopec, PetroChina, ChemChina, Zhejiang Petrochemical, and Hengli Petrochemical. This direct supply chain allows us to maintain stable raw material inputs with consistent hydrocarbon composition, enabling reliable downstream purification.

Q3: What role does Durene (CAS 95-93-2) play in polyimide synthesis, and what purity does Saier deliver?

A: Durene (1,2,4,5-tetramethylbenzene) is oxidized to produce Pyromellitic Dianhydride (PMAD), which is a key monomer used in manufacturing polyimide films. Shandong Saier uses high-vacuum fractional distillation and crystallization to supply Durene of high purity, ensuring low levels of isomers and trace contaminants that could interfere with downstream polymerization.

Q4: What is the operating temperature range and lifetime of Heat Transfer Oil L-QC320?

A: L-QC320 is designed for closed-loop, indirect heating systems operating at temperatures up to 320°C. When operating within its specified temperature limits and maintained under a proper nitrogen blanket to prevent oxidation, the oil provides a long service life, resisting thermal cracking and carbon deposition.

Q5: How does Shandong Saier Chemical handle quality assurance and batch consistency?

A: Our facility features an in-house laboratory equipped with gas chromatography-mass spectrometry (GC-MS), Karl Fischer titrators, and colorimeters. Every batch is sampled, analyzed, and recorded. We supply a Certificate of Analysis (COA) with each shipment to verify compliance with our technical specifications.

Q6: What certifications does Shandong Saier Chemical hold?

A: Shandong Saier Chemical is recognized as a National High-Tech Enterprise. We have established quality management systems in line with ISO 9001 standards, alongside environmental and occupational safety protocols, ensuring stable and responsible production.

Refined Specialty Intermediates

Explore our complete product catalog, including functional monomers, high-purity solvents, and specialized synthesis ingredients.

Wholesale Sodium hypophosphite H2NaO2P CAS:7681-53-0 Manufacturers, Manufacturer View Details

High-Quality 2',4'-Dichloroacetophenone CAS:2234-16-4 Suppliers, Exporters View Details

Wholesale 3-Methylthiophene CAS:616-44-4 Factory, Exporter View Details

China Sodium dimethyldithiocarbamate C3H6NNaS2 CAS:128-04-1 Suppliers, Manufacturer View Details

Buy Thiophene C4H4S CAS:110-02-1 Supplier, Factories View Details

China Dicyandiamide C2H4N4 CAS：461-58-5 Manufacturer, Factory View Details

OEM Durene/1,2,4,5-Tetramethylbenzene CAS No.: 95-93-2 Manufacturer, Exporters View Details

Buy 1,3-Dimethyladamantane CAS:702-79-4 Suppliers, Manufacturers View Details