Premium grade intermediates, solvents, and specialty materials engineered at our advanced production facilities.
Analyzing supply chain dynamics, regional production capacities, and macro-economic factors steering the heavy aromatic naphtha market.
The manufacturing landscape for heavy aromatic solvent naphthas (such as Topsol A150, Solvesso 150, and S-150) has increasingly centralized near top-tier refining clusters in the Asia-Pacific region, particularly in chemical hubs like Zibo City, Shandong. Large-scale integration with refineries such as Sinopec and PetroChina guarantees a reliable supply of raw C10-C12 aromatic feedstocks.
Topsol A150 is indispensable in formulating high-performance emulsifiable concentrates (EC) for crop protection. Its high flash point (typically above 60°C) provides unmatched safety margins compared to low-flash alternatives, allowing manufacturers to comply with strict international transport and storage regulations.
Modern procurement strategies prioritize low-naphthalene grades (Topsol A150ND). Traditional heavy aromatics contain up to 10% naphthalene, a substance subject to regulatory restrictions due to potential environmental and health hazards. Low-naphthalene (ND) solutions, containing less than 1% (and often less than 0.1%) naphthalene, represent the fastest-growing sector of the global market.
Strategic Market Insight: Regulatory developments like Europe's REACH registration and GHS hazard reclassifications are urging industrial formulators to phase out standard aromatic solvents in favor of highly refined options like Topsol A150ND (Naphthalene Depleted). Our modern continuous distillation columns are engineered specifically to run this precise separation, satisfying both solvent strength and stringent regulatory guidelines.
Understanding the molecular properties, evaporation rates, and distillation parameters that define premium high-boiling aromatic solvents.
| Property Parameter | Standard Topsol A150 | Naphthalene Depleted (A150ND) | Topsol S100 (Reference) | Test Method Reference |
|---|---|---|---|---|
| CAS Number | 64742-94-5 | 64742-94-5 | 64742-95-6 | IUPAC / CAS Database |
| Initial Boiling Point (IBP) | ~182 °C | ~184 °C | ~160 °C | ASTM D86 |
| Dry Point (DP) | ~207 °C | ~209 °C | ~180 °C | ASTM D86 |
| Flash Point (Pensky-Martens) | > 62 °C | > 63 °C | > 42 °C | ASTM D93 |
| Aromatic Content | > 99.0 vol% | > 99.0 vol% | > 99.0 vol% | ASTM D1319 / GC |
| Naphthalene Content | 5.0 - 9.0 wt% | < 0.9 wt% (Max 0.1% custom) | < 0.1 wt% | Gas Chromatography (GC-FID) |
| Density at 15 °C | 0.890 - 0.910 g/cm³ | 0.892 - 0.912 g/cm³ | 0.870 - 0.880 g/cm³ | ASTM D4052 |
| Kauri-Butanol (KB) Value | 95 - 98 | 95 - 97 | 90 - 93 | ASTM D1133 |
With a Kauri-Butanol value typically between 95 and 98, Topsol A150 dissolves a wide range of complex organic molecules, resins, and active crop protection agents. This prevents recrystallization in low-temperature storage.
With an evaporation rate significantly lower than standard C9 solvents (like S100), Topsol A150 facilitates excellent leveling and flow in industrial coatings, preventing surface defects like pinholing or orange peel.
A flash point of >62°C reclassifies transport hazards. Under many global frameworks (including US DOT and ADR), products formulated with Topsol A150 do not require highly restrictive flammable liquid hazard classification tags.
From modern agriculture to precision industrial coatings, explore where and how Topsol A150 delivers value.
In the crop protection sector, active ingredients (such as pyrethroids, triazoles, and phenoxy herbicides) must remain solubilized under diverse environmental conditions. Topsol A150 functions as a stable carrier solvent, ensuring that emulsifiable concentrates remain uniform throughout storage and field application.
Automotive OEMs, marine coaters, and coil coating lines rely on A150's high boiling point. It allows high-bake coatings to cure slowly and evenly. The solvent evaporates gradually at elevated temperatures, leaving a smooth, uniform polymer film with no trapped vapors.
In upstream oilfield applications, Topsol A150 serves as a carrier for drag reducers, corrosion inhibitors, and demulsifiers. Its high flash point and compatibility with heavy crude oils make it a preferred medium for downhole injection and refinery pipeline maintenance.
In high-speed offset and screen printing processes, ink formulation requires precise drying profiles. Topsol A150 provides the necessary viscosity reduction while preventing premature drying on the rollers, maintaining print quality over long operational runs.
Aromatic solvents serve as carriers for binding resins in industrial sand molds, optimizing structural integrity. They are also blended into diesel and heavy fuel treatments as combustion improvers and soot-reduction carriers.
Its high solvency power allows Topsol A150 to strip heavy oils, tars, and bitumen from industrial machinery. Its slow evaporation rate keeps the cleaning solution active on the surface longer than fast-evaporating alternatives.
A National High-Tech Chemical Enterprise Powered by Quality, Innovation, and Sustainability Since 2004.
Founded in December 2004, Shandong Saier Chemical Technology Development Co., Ltd. has established itself in the chemical manufacturing industry. Located at No. 207, WeiLiu Road, Qilu Chemical Industrial Park, Linzi, Zibo City, Shandong Province, the company benefits from integration within one of China's premier petrochemical hubs.
With an initial registered capital of 60 million yuan, Saier Chemical established a strong financial foundation. The company optimized its operations by sourcing raw materials directly from major refining giants, including Sinopec, PetroChina, ChemChina, Zhejiang Petrochemical, and Hengli Petrochemical. This guarantees consistent product quality and supply chain reliability from the start.
Currently boasting an annual production and processing capacity of 720,000 tons, Saier Chemical serves both domestic markets (including Beijing, Shanghai, Tianjin, Hebei, Shandong, and Henan) and global markets across Asia, Europe, the Americas, and Southeast Asia.
A closer look at our state-of-the-art distillation units, warehouses, laboratories, and green production zones.
Addressing the shifting paradigm towards sustainable chemistry, carbon-neutral processing, and low-VOC alternatives.
Our engineering team is integrating AI-driven temperature control systems into our rectification columns. This allows us to separate standard heavy aromatics into highly pure fractions, keeping naphthalene content below 0.1 wt% and preserving the aromatic solvent power.
Under new regional policies, industrial solvent manufacturers must lower volatile organic compound (VOC) emissions. By refining heavier molecular fractions, Topsol A150 maintains low vapor pressure and reduced evaporation losses at ambient temperatures.
Our Zibo facility is transitioning to a waste-heat integration model. We capture excess thermal energy from our catalytic reactors and redirect it to run our primary distillation stages, reducing our carbon footprint per ton of Topsol produced.
Our core product lines cover Aromatic Solvents (TOPSOL / Naphtha) and Fine Chemical Materials, serving critical industrial sectors.
Produced using C10 aromatics through continuous rectification. A colorless, transparent, and aromatic organic solvent.
High-purity chemical intermediates synthesized under strict quality control standards for pharmaceutical and agricultural manufacturing.
Formulated for high thermal stability and long service life in closed-loop heat transfer systems operating up to 320°C.
Durene, Thiophene, 1,3-Cyclohexanedione, and other key raw materials for advanced chemical syntheses.
Fully automated DCS control rooms overseeing the distillation towers.
Large capacity storage tanks securing stable raw material supply.
Highly precise chemical separating systems producing low-naphthalene solvents.
Equipped with gas chromatographs and flashpoint testers.
Integrated logistics network facilitating prompt worldwide transport.
Shandong Saier Chemical integrates supply networks, production scale, and technical support to deliver consistent solvent solutions globally.
Expert answers addressing the specifications, logistics, safety, and applications of Topsol A150.
Partner with a leading manufacturer of Topsol A150 and high-boiling aromatic solvents. Our engineering team can help optimize your formulation's solvency, safety profile, and regulatory compliance.
Factory Address: No. 207, WeiLiu Road, Qilu Chemical Industrial Park, Linzi, Zibo City, Shandong Province, China.
Explore our full range of high-boiling aromatics, raw intermediates, and auxiliary process agents.
Saier Chemical
