Heavy Aromatic Solvent Naphtha 150, primarily registered under CAS No. 64742-94-5, is a complex mixture of hydrocarbon compounds, predominantly consisting of C10 to C12 alkylbenzenes and other polycyclic aromatic systems. Known in the international market under designations such as Aromatic Solvent S150, TOPSOL, KOCOSOL, and Aromatic Hydrocarbons, this chemical fluid has earned a reputation for its high boiling range, superior solvency index, and chemical stability.
Unlike lighter hydrocarbons, Solvent Naphtha 150 offers a high boiling point (typically between 180°C and 210°C) and a high flash point (above 62°C), providing an exceptional safety margin during thermal synthesis and application processes. Its low evaporation rate makes it the solvent of choice in advanced formulation systems requiring prolonged open-time and excellent leveling.
| Property Profile | Typical Parameters (Standard S150) | S150 ND (Naphthalene Depleted) |
|---|---|---|
| Distillation Range (°C) | 182 – 208 | 184 – 205 |
| Flash Point (Closed Cup) | > 62°C | > 63°C |
| Naphthalene Content (%) | < 10.0% | < 1.0% (Ultra low versions < 0.1%) |
| Kauri-Butanol Value (KB) | 95 | 93 |
| Density at 15°C (g/cm³) | 0.890 – 0.910 | 0.885 – 0.905 |
Solvent Naphtha 150 stands at the intersection of regulatory shift, chemical modernization, and supply chain rationalization. Here is how the macro market is evolving.
As the EU REACH regulations, EPA guidelines, and domestic Chinese environmental mandates tighten, the chemical landscape is shifting towards low-VOC, high-boiling solvents. Heavy aromatics offer lower vapor pressure compared to standard solvents, dramatically reducing ambient emissions during application in industrial settings.
Modern agriculture requires active pesticide and herbicide ingredients to remain stable under high thermal variations. Solvent Naphtha 150 remains the premium carrier for Emulsifiable Concentrates (EC) due to its superior solubility coefficient for active organic molecules, preventing early crystallization.
OEM industrial coatings, automotive finishes, and stoving enamels require solvents that evaporate slowly to ensure perfect film levelling and high gloss. The boiling profile of S150 provides the ideal evaporation curve, ensuring the absence of surface defects like orange peel or pinholes.
Founded in December 2004, Shandong Saier Chemical Technology Development Co., Ltd. is strategically located at No.207, WeiLiu Road, Qilu Chemical Industrial Park, Linzi, Zibo City, Shandong Province. In this world-class chemical cluster, we have optimized our supply-chain integration, drawing prime hydrocarbons directly from key refining conglomerates.
By leveraging solid raw materials from refining giants like Sinopec, PetroChina, ChemChina, Zhejiang Petrochemical, and Hengli Petrochemical, we secure uninterrupted flow of high-quality feedstocks. This stable structural relationship allows us to run a robust production capacity of 720,000 tons per year, meeting both massive domestic and international industrial demands.
Procurement teams across Europe, North America, and Southeast Asia look for suppliers that can scale production. Shandong Saier operates direct logistical routes targeting key maritime gateways. We cater directly to the logistics demands of the international chemical markets, utilizing reliable tankers, flexitanks, and ISO tank structures.
A major pain point for pesticide and high-end automotive coating manufacturers is variability in isomer composition. Changing percentages of trimethylbenzenes and tetralins can alter flash points and dry times. Saier Chemical eliminates this volatility through continuous digital rectification and automated gas chromatography assays.
With chemical raw materials fluctuating globally, our deep relationships with oil refineries like Sinopec and PetroChina allow us to buffer raw material volatility. We guarantee volume commitments to our key clients via annual contract structures, ensuring consistent pricing and supply even in tight global markets.
Our customer base spreads extensively across major economic hubs, including Beijing, Shanghai, Tianjin, Hebei, Shandong, and Henan domestically, while exporting globally to major buyers in the Americas, Europe, Central Asia, and Southeast Asia.
Shandong Saier Chemical Technology Development Co., Ltd. does not just supply individual drums; we build integrated process networks. Our core product families, containing both high-boiling aromatics and specialized fine chemicals, are co-engineered to optimize downstream performance.
We supply a fully graduated series of high-boiling aromatic solvents engineered to cover different thermal application envelopes:
Our infrastructure concurrently refines high-value organic intermediates, producing synergistic value for chemical synthesis:
Advanced manufacturing is driven by a highly structured production environment. We display our operations, workspaces, and production areas below.
Operating in international chemical markets demands complete compliance with health, safety, and environmental guidelines. Solvent Naphtha 150 falls under GHS hazard classification codes for aspiration hazard and environmental toxicity. Shandong Saier provides completely customized packaging accompanied by compliant safety documentation:
We accommodate global procurement models with versatile packaging solutions designed to preserve the absolute purity of dry solvent loads.
The future of heavy aromatic solvents relies on chemical innovation that balances performance with environmental preservation. As a national high-tech enterprise, Shandong Saier is continually developing chemical refining methodologies to reduce the carbon footprint of our operations.
Standard Solvent Naphtha 150 contains naphthalene, which is increasingly classified as toxic to aquatic life. We are refining our fractional distillation techniques to produce ultra-pure, naphthalene-depleted solvents with concentrations below 1%. Our R&D is currently working on next-generation adsorption columns that selectively remove polycyclic aromatics without changing the monocyclic alkylbenzene ratios, maintaining the solvency parameter.
By integrating advanced heat exchangers and waste-heat recovery boilers across our distillation units in Qilu Chemical Industrial Park, we have reduced energy consumption per ton of solvent refined by 15%. This carbon reduction helps downstream buyers meet their scope 3 emissions targets, improving the overall life-cycle credentials of their final formulations.
Located in Zibo Qilu Chemical Industrial Park, we benefit from integrated transport networks and petrochemical pipelines.
Our registered capital of 60 million yuan ensures our ability to fund large-scale technical projects and maintain safety stock.
Secured direct agreements with PetroChina, Sinopec, and Hengli Petrochemical guarantee feedstock quality.
From solvents to fine chemical intermediates, we offer complete raw material solutions under one roof.
Our 720,000-ton capacity is backed by automated packaging lines, private loading docks, and reliable logistics networks.
Recognized as a national high-tech enterprise, we hold numerous patents in organic rectification and extraction processes.
Saier Chemical
