Junyuan Petroleum Group, China’s largest n-Pentane producer, has successfully achieved continuous exports for the 19th consecutive year. Recently, 260 tons of n-Pentane were shipped from Qingdao Port to Colombia, marking another solid step in the company’s steady expansion into international markets.

Over the past years, Junyuan has actively promoted the transformation and upgrading of the petrochemical industry by relying on advanced naphtha chemical technology. Its products not only hold a strong position in the domestic market but also represent a leap from “Made in China” to “Global Solutions.” Through in-depth market research and front-line engagement, Junyuan has strategically targeted regions such as Southeast Asia and South America. By collaborating with major domestic trading partners, participating in international exhibitions, and opening up trade channels along the Belt and Road, the company has significantly expanded the global reach of its n-Pentane products.

In Colombia, particularly in the port cities of Buenaventura and Cartagena, n-Pentane plays a vital role:

Blowing Agent in polyurethane (PU) and polystyrene (EPS) foams, essential for insulation in refrigerators and construction panels.

Organic Solvent in adhesives, coatings, and inks.

Electronics Cleaning Agent to remove grease and impurities in manufacturing processes.

Refrigerant Component (R601) in eco-friendly cooling systems.

Chemical Intermediate, Laboratory Applications, and Specialty Uses in fine chemicals, chromatography, and performance-enhancing materials.

With its “Terminal + Internationalization” dual-driven strategy, Junyuan has built a strong supply chain that ensures reliable delivery through ISO tanks and customized packaging solutions. The company’s efforts are also aligned with the high-level development of inland open economy pilot zones in China, while strengthening long-term cooperation with international partners.

A company spokesperson emphasized that exporting to Colombia is an important milestone in Junyuan’s international strategy. Looking ahead, Junyuan will continue to explore overseas market potential, expand export volumes, and enhance the global recognition of its brand concept — “Junyuan · More than n-Pentane.” By doing so, Junyuan Petroleum Group aims to bring more high-quality naphtha-based chemical products to the global stage and contribute to the growing recognition of Chinese manufacturing worldwide.

Two Essential Blowing Agents: Cyclopentane and Pentane

In the world of insulation and polymer manufacturing, blowing agents play a critical role in creating lightweight, energy-efficient materials. Among the most widely used are cyclopentane and pentane, both hydrocarbon compounds known for their effectiveness and environmental advantages. Let’s explore their properties and applications.

Cyclopentane: Properties and Applications

Physical and Chemical Characteristics

Cyclopentane is a colorless, highly volatile liquid with a distinct gasoline-like odor. Key properties include:

• Freezing Point: –94°C
• Boiling Point: ~49°C
• Vapor Density: 2.4 times that of air
• Vapor Pressure: 36.6 kPa at 20°C; 69 kPa at 38°C
• Density (20°C): 0.745 g/cm³
• Flash Point (closed cup): –37°C (Highly flammable)
• Autoignition Temperature: 361°C
• Explosion Limits (vol%): 1.5% – 8.7%
• Occupational Exposure Limit (TLV/TWA): 600 ppm

Technical Specifications

Commercial-grade cyclopentane typically meets the following standards:

• Appearance: Clear, colorless liquid with no suspended solids
• Purity: ≥99%
• Moisture Content: <50 ppm
• Non-volatile Residue: <10 ppm
• Acidity: Neutral, free of acidic substances

Application Highlights

Cyclopentane is prized for its zero ozone depletion potential (ODP) and zero global warming potential (GWP), making it an ideal replacement for CFC-11 in foam production. It is commonly used in:

1. CFC-free refrigerators and freezers
2. Cold storage insulation systems
3. Pipeline thermal insulation

Usage Notes

• Cyclopentane has limited solubility in polyether polyols, so low-viscosity polyols are preferred.
• It can be blended with isopentane to optimize performance.

Pentane: Properties and Applications

Pentane refers to a group of isomers, primarily n-pentane and isopentane, both used in industrial applications.

Physical and Chemical Characteristics

At room temperature, pentane is a clear, colorless liquid with a faint aromatic odor. It is:

• Free of olefins
• Free of suspended solids and water

Technical Specifications

Typical industrial-grade pentane meets the following criteria:

• Appearance: Clear, no sediment or haze
• Purity: ≥99% for n-pentane; ≥98% for isopentane
• Composition: n-pentane is rich in straight-chain alkanes; isopentane contains branched isomers
• Moisture Content: <20 ppm
• Sulfur Content: <1 ppm
• Bromine Index: Low (indicates minimal unsaturated hydrocarbons)

Application Highlights

Pentane is derived from efficient distillation of light hydrocarbons from oil fields. Its main uses include:

1. Desorption agent in molecular sieve dewaxing (n-pentane)
2. Blowing agent for expandable polystyrene (EPS) — often a blend of n- and isopentane
3. Polyurethane foam production, often in combination with cyclopentane

Environmental and Industrial Relevance

Both cyclopentane and pentane are vital in the shift toward eco-friendly insulation materials. Their low environmental impact and high efficiency make them indispensable in modern manufacturing, especially as industries move away from ozone-depleting substances.

In the heart of a bustling industrial hub, where innovation meets environmental stewardship, a quiet hero plays a pivotal role in shaping the future of construction. This hero is n-Pentane, a simple yet powerful hydrocarbon that has become the backbone of eco-friendly insulation solutions and is indispensable for modern manufacturing processes.

Once overlooked in favor of less sustainable alternatives, n-Pentane emerged as a game-changer in the production of high-performance insulation panels. These panels, widely applied in areas such as cold storage, roof and wall cladding, façades, and insulated industrial doors, depend on n-Pentane to create their lightweight, energy-efficient cores. Its introduction has revolutionized the thermal insulation industry while addressing critical environmental concerns. Unlike older materials that harmed the ozone layer, n-Pentane boasts a zero ozone depletion potential (ODP), affirming its role as a key enabler of environmentally responsible manufacturing.

The story of n-Pentane begins in advanced production facilities, where it serves as an essential blowing agent in creating polyurethane and polyisocyanurate foams. These foams rely on n-Pentane to expand and form tiny bubbles, resulting in a highly effective structure for heat insulation. This process transforms raw materials into reliable products such as panels for extreme climates, significantly reducing energy use across diverse applications. Whether safeguarding perishable goods in cold storage or improving building energy efficiency, n-Pentane is at the core of sustainable solutions.

What truly sets n-Pentane apart is its remarkable ability to combine outstanding performance with environmental sustainability. It is a perfect match for manufacturers who prioritize eco-friendly initiatives and compliance with global green building standards. By contributing to modern insulated panels, n-Pentane facilitates projects that aim for both durability and environmental responsibility, reflecting its alignment with global trends in sustainable construction.

Beyond its technical applications, n-Pentane ensures smooth supply chain operations. Manufacturers worldwide depend on its reliable quality to produce top-tier insulation products on tight timelines, meeting the evolving needs of their markets and projects.

In a world increasingly committed to sustainability, n-Pentane is far more than a chemical—it is a catalyst for progress. From protecting perishable goods to improving energy efficiency in construction, it enables a future where buildings are greener, energy is conserved, and the planet is preserved. As the drive for sustainable practices continues, n-Pentane remains an essential component in shaping a world where innovation and environmental care go hand in hand.

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n-Pentane in drums is available starting October!  Due to high summer temperatures, shipments are paused from May 1st to October 1st. Contact us now and start stocking up! 
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Summary:

Junyuan Petroleum Group provides a comprehensive overview of the global use of n-Pentane, Isopentane, and Cyclopentane. These hydrocarbons are essential in various industries, including petrochemicals, refrigeration, and geothermal energy. The report highlights the unique properties and applications of each compound, emphasizing their importance in modern industrial processes.

Keywords:

• n-Pentane
• Isopentane
• Cyclopentane
• Junyuan Petroleum Group
• Petrochemical industry
• Refrigerants
• Geothermal energy
• Industrial solvents
• Foam blowing agents

n-Pentane, isopentane, and cyclopentane are widely used in various countries around the world for different applications
. Here are some of the key countries where these compounds are commonly utilized:

United States: These compounds are used in the production of insulation materials, refrigerants, and as solvents in the petrochemical industry
.

Germany: Known for its advanced chemical industry, Germany uses these pentanes in similar applications, including foam blowing agents and refrigerants
.

China: With its rapidly growing industrial sector, China employs n-pentane, isopentane, and cyclopentane in various manufacturing processes, especially in the production of insulation materials
.

Japan: Japan uses these compounds in the manufacturing of refrigerants and insulation materials, as well as in the petrochemical industry
.

India: India’s expanding chemical industry utilizes these pentanes in foam production and as solvents
.

Brazil: Brazil employs these compounds in the petrochemical industry and for foam blowing applications
.

These countries are just a few examples, and the use of n-pentane, isopentane, and cyclopentane is widespread across many other regions due to their versatile applications in various industries
.

Is there a specific application or industry you’re interested in learning more about?

In recent months, the price of n-Pentane in China has seen a significant decline. This downward trend can be attributed to several key factors:

1. Low Demand: The primary driver behind the falling prices is the reduced demand from downstream industries, particularly the petrochemical sector. The post-festival season saw a decrease in procurement activities, leading to an overall drop in demand.
2. Oversupply: The market has been experiencing an oversupply of n-Pentane, which has further pushed prices down. This oversupply is partly due to reduced production activities as enterprises adopt a cautious approach to ease inventory pressure.
3. Global Economic Factors: Fluctuations in global oil prices, influenced by geopolitical tensions and economic policies, have also played a role in the volatility of n-Pentane prices. These factors have led to weaker cost support from feedstock naphtha, contributing to the downward pressure on prices.
4. Logistical Challenges: Issues in logistics, including the Red Sea crisis and adverse weather conditions affecting soybean imports, have compounded the challenges faced by the n-Pentane market. These disruptions have further reduced the need for n-Pentane in various industrial processes.
5. Market Sentiment: The overall market sentiment remains negative, with buyers hesitant to place new orders amid ongoing disruptions and low demand. This cautious approach has led to a significant decline in procurement activities.

Despite these challenges, there is optimism for a potential recovery in the future, driven by smooth logistics and increased purchases during upcoming festival seasons. However, the current market conditions continue to exert downward pressure on n-Pentane prices in China.

Custom Blends of Isopentane, Normal Pentane, and Cyclopentane: Advancing Your Chemical Needs

At the forefront of chemical innovation, we specialize in crafting custom blends of Isopentane, Normal Pentane, and Cyclopentane that cater precisely to your unique requirements. Our advanced in-line blending technology and deep industry knowledge set us apart as a reliable partner for all your chemical blending needs.

The Power of Customization

Each of these hydrocarbons—Isopentane, Normal Pentane, and Cyclopentane—brings its own set of properties and benefits to the table. By blending them in precise ratios, we can harness their individual strengths to create a solution that exceeds your expectations. Whether you’re looking to enhance foam production, optimize fuel efficiency, or improve the performance of your manufacturing processes, our custom blends are designed to deliver.

Environmental Responsibility

In today’s world, environmental considerations are paramount. Cyclopentane, in particular, offers a greener alternative to traditional blowing agents like CFCs, reducing your carbon footprint and aligning with sustainable practices. By incorporating Cyclopentane into our custom blends, we help you achieve your production goals while minimizing environmental impact.

Beyond Standard Blends

While we offer a range of pre-defined blend ratios, our capabilities extend far beyond these standard options. Our team of experts will work closely with you to understand your specific requirements and develop a custom blend that perfectly fits your application. Whether you need a blend with a specific boiling point, viscosity, or other physical property, we have the technology and expertise to deliver.

Quality Assurance

At every step of the blending process, we adhere to strict quality control measures to ensure that your custom blend meets the highest standards of purity and consistency. Our in-line blending technology allows for precise control over the mixing process, ensuring that each batch is identical to the last. This level of precision and consistency is crucial for maintaining the performance and reliability of your final product.

Let’s Collaborate

We understand that every application is unique, and that’s why we’re committed to working closely with you to find the perfect solution. Whether you’re a seasoned industry veteran or a newcomer to the world of chemical manufacturing, our team of experts is here to guide you every step of the way. Contact us today to discuss your specific needs and learn more about how our custom blends of Isopentane, Normal Pentane, and Cyclopentane can help advance your chemical requirements.

Package Type

• Isotank
• Railcar
• Truck
• Vessel

Keywords: Pentane, Hydrocarbon, Solvent, Fuel, Refining Process, Petrochemical Industry, LPG, Environmental Impact, Sustainability

Introduction

In the vast world of hydrocarbons, pentane stands out as a versatile and essential component in numerous industries. With its unique properties, pentane plays a pivotal role in various applications ranging from solvents and fuels to refrigerants and raw materials in the petrochemical sector. This article delves into the mysteries of pentane, exploring its properties, uses, production methods, and environmental considerations.

What is Pentane?

Pentane is an organic compound belonging to the alkane family, characterized by its saturated hydrocarbon chain consisting of five carbon atoms (C5H12). It exists in three main isomeric forms: n-pentane (straight-chain), isopentane (branched-chain), and neopentane (highly branched). Naturally occurring in petroleum, pentane is a major component of liquefied petroleum gas (LPG) and is extracted during the refining process of crude oil.

Properties of Pentane

Pentane’s physical properties make it highly suitable for various applications. It is a colorless, odorless liquid at room temperature, with a low boiling point ranging from -49.5°C (n-pentane) to 9.5°C (neopentane). Its high volatility and solubility in organic solvents make it an ideal choice as a solvent in various industries. Additionally, pentane’s high energy content and clean-burning nature contribute to its use as a fuel.

Applications of Pentane

1. Solvent: Pentane is widely used as a solvent in the production of adhesives, coatings, and printing inks due to its ability to dissolve a broad range of materials without leaving residue.
2. Fuel: In its liquefied form, pentane is an important component of LPG, which is used for cooking, heating, and even as an automotive fuel in some regions. Its clean combustion and high energy density make it an environmentally friendly alternative to traditional fuels.
3. Refrigerant: Isopentane, specifically, is used as a refrigerant in some refrigeration systems due to its low boiling point and non-toxic nature. However, its flammability requires careful handling and specialized equipment.
4. Petrochemical Feedstock: Pentane is also a crucial feedstock in the petrochemical industry, where it undergoes further processing to produce various chemicals and polymers.

Production and Refining Process

Pentane is extracted during the refining of crude oil through fractional distillation. This process involves heating crude oil to high temperatures, causing it to vaporize and separate into different fractions based on their boiling points. Pentane, along with other hydrocarbons, is collected at specific temperatures and undergoes further purification to meet industrial standards.

Environmental Considerations and Sustainability

As with any petrochemical product, the production and use of pentane have environmental implications. Its extraction from crude oil contributes to greenhouse gas emissions and requires significant energy inputs. However, the clean-burning nature of pentane as a fuel and its recyclability in some applications mitigate these impacts. Furthermore, research into more sustainable production methods, such as biogas upgrading and catalytic conversion of biomass, is ongoing to reduce the environmental footprint of pentane and other hydrocarbons.

Conclusion

Pentane, with its unique properties and diverse applications, is an indispensable component in modern industries. From solvents and fuels to refrigerants and petrochemical feedstocks, pentane continues to play a pivotal role in driving innovation and progress. As we strive for sustainability, it is essential to explore alternative production methods and optimize the use of this valuable resource to minimize its environmental impact. By understanding the versatility of pentane and its role in our daily lives, we can better appreciate the importance of responsible and sustainable practices in the petrochemical industry.

Summary:
n-Pentane is an important organic chemical raw material, with the chemical formula C5H12. This article will provide a scientific introduction to the properties, uses, storage methods, and applications of n-pentane in the chemical industry.

N-pentane, as a member of the alkane family, occupies an important position in the chemical industry due to its unique chemical properties and wide range of applications. Its chemical formula C5H12 indicates that n-pentane is composed of 5 carbon atoms and 12 hydrogen atoms, and belongs to a type of straight chain alkanes.

1、 The properties of n-pentane

n-Pentane is a colorless and transparent liquid with a lower boiling point (about 36 ° C) and is prone to volatilization. Its isomers include isopentane and neopentane, but the term “pentane” usually specifically refers to n-pentane. N-pentane has stable properties at room temperature, but is prone to combustion reactions at high temperatures or near ignition sources.

2、 The use of n-pentane

n-Pentane has a wide range of applications in the chemical industry. Firstly, it can be used as a low boiling solvent to dissolve some substances that are not easily soluble in water. Secondly, n-pentane is also an important foaming agent in the plastic industry, which can help plastic materials form a uniform foam structure. In addition, n-pentane can also be used as a fuel for automobiles and airplanes, and its high calorific value and good combustion performance make it an ideal energy choice.

In addition to the above applications, n-pentane also plays an important role in gas chromatography analysis and can be used as a standard substance or reference liquid. At the same time, it can also be used to manufacture chemicals such as synthetic pentanol and isopentane, providing raw material support for chemical production.

3、 Storage method of n-pentane

Due to the flammable and explosive properties of n-pentane, special attention should be paid during storage. Firstly, it should be stored in a cool and ventilated warehouse, away from flames and heat sources. The temperature of the warehouse should not exceed 29 ℃ to avoid fire or explosion accidents. Secondly, storage containers should be kept sealed to prevent the volatilization or leakage of n-pentane. In addition, n-pentane should be stored separately from oxidants and other substances to avoid chemical reactions.

Emergency leak handling equipment and appropriate containment materials should be equipped in the storage area, so that measures can be taken quickly for disposal in the event of a leak. At the same time, explosion-proof lighting and ventilation facilities should also be used to ensure the safety of the storage area.

4、 Summary

n-Pentane, as a multifunctional organic chemical raw material, plays an important role in the chemical industry. By understanding its properties, uses, and storage methods, we can better utilize n-pentane to provide support for chemical production. At the same time, we should also pay attention to its safe storage issues to ensure that no safety accidents occur during use.