Estimated reading time: 2 minutes

High-Purity Pentane Portfolio – Reliable, Efficient, and Sustainable

Our Pentane range is developed to deliver consistent quality and optimized performance across multiple industrial applications. With high purity levels and narrow boiling ranges, these Pentanes ensure reliability, efficiency, and environmental compliance in every use.

---

1. Product Overview

We offer a complete series of Pentane grades designed to meet diverse process requirements:

Product	Purity (%)	Boiling Range (°C)	Flash Point (°C)	Key Applications
n-Pentane 99%	≥99.0	35–36	-40	Polyurethane rigid foam blowing agent, solvent
Isopentane 99%	≥99.0	27–29	-51	Quick-foaming systems, refrigerant blends
Pentane Blend 80/20 (n-/iso-)	≥99.0	30–35	-45	Balanced foam expansion, insulation boards
Pentane Blend 50/50 (n-/iso-)	≥99.0	28–34	-47	General-purpose polyurethane systems
Pentane Blend (Cyclo/Isopentane)	≥99.0	28–37	-40	Low-conductivity, CFC-free insulation foam

---

2. Key Technical Features

• High Purity: Up to 99% for stable and reproducible foam performance.
• Low Sulphur Content: Ensures catalyst protection and cleaner reactions.
• Optimized Volatility: Custom boiling ranges to control foaming speed and cell structure.
• Excellent Compatibility: Suitable for polyol systems and refrigerant formulations.
• Eco-Friendly: Non-ozone depleting alternative to traditional CFCs and HCFCs.

---

3. Safety & Handling

All Pentane products are classified as highly flammable liquids and vapors.

• Store in a cool, well-ventilated area, away from ignition sources.
• Use closed systems for handling and transfer.
• Ensure compliance with REACH and GHS standards.

---

4. Applications

• Polyurethane Insulation Foams: Rigid foam for construction and appliance insulation.
• Refrigeration Systems: Used as components in hydrocarbon refrigerant blends.
• Solvent Applications: Precision cleaning and polymer processing.
• Custom Formulations: Tailor-made Pentane Blends for controlled evaporation rates.

---

5. Packaging Options

• ISO Tanks (15.5MT each) for bulk international shipments.
• Drums (125kg net) for smaller-scale customers or sampling purposes.

• Pentane Blends for PU and EPS Foam Applications | Cyclopentane & Isopentane Solutions
• Cyclopentane: The Eco-Friendly Blowing Agent Driving the Future of PU Foam Insulation
• What is the difference between EPS fire resistance levels A, B, and B1?
• How to make polyurethane foam from cyclopentane?
• Isopentane

The GB/T 22053-2008 standard summary for Pentane Vesicant:

• Standard Number: GB/T 22053-2008
• Chinese Title: 戊烷发泡剂
• English Title: Pentane Vesicant
• Scope:
  • Applies to pentane vesicant refined by distillation from pentane-containing raw materials
  • Primarily used as a blowing agent in expandable polystyrene and flexible polyurethane production
  • Also applicable as a chemical or laboratory solvent

Chemical Information

• Molecular Formula: C₅H₁₂
• Relative Molecular Mass: 72.15 (based on 2001 international atomic weights)

Grades and Composition

Pentane vesicant consists of n-pentane (nCs) and isopentane (iCs), available in 11 grades:

Grade	n-Pentane (%)	Isopentane (%)
Fo	0	100
F1	10	90
F2	20	80
F3	30	70
F4	40	60
F5	50	50
F6	60	40
F7	70	30
FB	80	20
F9	90	10
F10	100	0

Note: nCs and iCs content may vary within ±5% based on demand.

Technical Requirements

• Appearance: Clear, colorless liquid with no turbidity
• Relative Retention Values (selected components):

Component	Retention Value
Isobutane	0.368
n-Butane	0.531
Isopentane	1.000
n-Pentane	1.237
n-Hexane	2.658
Benzene	3.329

Inspection Rules

• Types of Inspection:
  • Factory Inspection: Conducted by the manufacturer’s quality department; includes total pentane content and C6+ components
  • Type Inspection: Covers all parameters; performed at least once per month during normal production
• Acceptance: Must be completed within 15 days of receipt by the user
• Sampling: As per SY/T 0543
• Judgment: Based on GB/T 1250 rounding comparison method; if any parameter fails, retest from double units. If retest fails, the batch is rejected.

Labeling, Packaging, Transport, Storage

• Labeling:
  • Must include product name, trademark, grade, manufacturer name and address, net weight, batch number, standard code, and “flammable” symbol per GB 190
• Packaging:
  • Filling coefficient for tankers or containers must not exceed 0.85
• Transport:
  • Ensure ventilation, avoid impact, dragging, direct sunlight, and open flames; comply with national hazardous goods transport regulations
• Storage:
  • Separate from oxygen, compressed air, oxidizers
  • Avoid heat sources, sunlight, rain
  • Display “No Smoking/Fire” signs, implement fire/explosion protection measures, and equip with appropriate fire extinguishers

Safety Information

• Physical Hazards:
  • Highly flammable; vapor forms explosive mixtures with air
  • Vapor is heavier than air and may travel to ignition sources
• Health Hazards:
  • Low toxicity
  • High concentrations may irritate eyes and respiratory tract, cause anesthesia or unconsciousness
  • Chronic exposure may lead to mild dermatitis and mucosal irritation
  • Protective equipment required in high-concentration environments

Referenced Standards (selected)

• GB/T 259 – Determination of water-soluble acids and bases in petroleum products
• GB/T 1250 – Rounding and judgment methods for limit values
• SH 0164 – Packaging, storage, and delivery rules for petroleum products
• SY/T 0542 – Gas chromatography method for light hydrocarbon components
• SY/T 0543 – Sampling method for stable light hydrocarbons

High-Purity Pentane Blend (50% / 50%) — The Ideal Foaming Agent for Malaysia’s EPS, Panel & Refrigerator Industries

Product Overview

Our high-purity Pentane blend combines n-Pentane and Isopentane (50% / 50%), optimized for EPS, XPS, PU, and PIR foam applications.
With a bromine index <10, this formulation guarantees low olefin content, excellent stability, and clean processing for superior foam quality.

Specification	Typical Value
n-Pentane content	50%
Isopentane content	50%
Bromine index	<10 mg Br/100g
Purity	High
Moisture	≤50 ppm
Sulfur	≤1 ppm
Appearance	Clear, colorless liquid
Packaging	15.5 MT / ISO Tank (26m³)

---

Key Advantages

✅ Balanced Volatility for Uniform Foaming
The equal ratio of n-Pentane and Isopentane delivers stable cell formation, optimal insulation, and reduced density variation in EPS and PU systems.

✅ Ultra-Low Bromine Index (<10)
Ensures high chemical purity, preventing side reactions, discoloration, or polymer degradation during foaming.

✅ Excellent Stability in Malaysia’s Climate
Performs reliably under tropical temperatures without phase separation or expansion issues.

✅ Eco-Friendly Alternative to HCFCs
Non-ozone-depleting, energy-efficient, and compliant with global environmental standards.

✅ Multi-Industry Application
Ideal for:

• EPS & XPS insulation blocks
• PU / PIR rigid foam for refrigerators & freezers
• Insulated sandwich panels for cold storage and construction
• Thermal packaging & cold-chain boxes

---

Target Customers in Malaysia

1️⃣ EPS / XPS Manufacturers

• Polyfoam, Beepack, Insulpack, Styropack, and similar foam producers.

2️⃣ Sandwich Panel & PU System Houses

• Kingspan Insulation (Malaysia), K-Flex, JRD Insulation, U Panel Systems.

3️⃣ Refrigerator & Freezer Manufacturers

• Panasonic Malaysia, Sharp, Hisense, Midea, Haier, and OEM assemblers.

4️⃣ Cold Storage & Construction Insulation Contractors

• Companies involved in refrigerated warehouses, food logistics, and industrial buildings.

---

Packaging & Logistics

• 15.5 MT / ISO Tank (26m³) — safe bulk shipment for industrial use
• Fully compliant with IMDG / UN 1265 (Pentanes)
• Equipped with nitrogen blanketing system for transport stability
• Optional drum packaging available for sampling and pilot runs

---

Why Choose This Pentane Blend

• Balanced n-/Isopentane ratio for predictable performance
• Low impurity and low bromine index for premium foam quality
• Consistent supply and competitive pricing
• Trusted by insulation, EPS, and appliance manufacturers across Asia

---

Conclusion

As Malaysia’s insulation, packaging, and appliance industries move toward eco-friendly and efficient foaming systems, this n-Pentane and Isopentane blend (50% / 50%) stands out for its purity, safety, and reliability.
From EPS foam blocks to refrigerator insulation panels, it ensures performance stability, consistent yield, and regulatory compliance — the perfect balance of quality and value.

The choice of blowing agent

In the insulation industry, the choice of blowing agent plays a decisive role in determining a panel’s thermal efficiency, structural strength, and environmental impact. Among the various options available today, n-Pentane stands out as one of the most efficient, economical, and environmentally friendly blowing agents for producing high-performance insulated panels.

1. Superior Thermal Performance

n-Pentane offers a low thermal conductivity value, allowing manufacturers to achieve excellent insulation performance with reduced material usage. When used in polyurethane (PU) and polyisocyanurate (PIR) foam systems, n-Pentane ensures consistent cell structure and stable insulation properties even under extreme temperature variations. This makes it an ideal choice for building envelopes, cold storage, and refrigerated transport applications.

2. Environmentally Responsible Choice

Compared with traditional CFCs and HCFCs, n-Pentane is a non-ozone-depleting hydrocarbon with zero ODP (Ozone Depletion Potential) and very low GWP (Global Warming Potential). As global regulations increasingly restrict the use of high-GWP materials, n-Pentane provides a sustainable alternative that helps manufacturers comply with environmental standards such as the EU F-Gas Regulation and the Montreal Protocol.

3. Cost Efficiency and Process Compatibility

n-Pentane not only delivers strong insulation performance but also offers significant cost advantages. It is compatible with existing foam production equipment, minimizing the need for plant modification. Its stable supply and competitive pricing make it a preferred choice for large-scale panel manufacturers seeking a balance between performance and cost control.

4. Proven Reliability in Global Applications

Leading insulation panel producers worldwide have adopted n-Pentane as their primary blowing agent. Its proven track record in both continuous and discontinuous panel production lines demonstrates its versatility and reliability. Whether for roof and wall panels, cold storage facilities, or industrial buildings, n-Pentane consistently delivers superior insulation and long-term durability.

---

In summary, n-Pentane offers an exceptional balance of performance, environmental responsibility, and cost-effectiveness. As the insulation industry continues its transition toward greener technologies, n-Pentane remains a trusted choice for manufacturers striving for both efficiency and sustainability.

---

Further Reading:
For a deeper understanding of how hydrocarbon blowing agents are transforming modern insulation technology, visit the European Association for Foamed Plastic Insulation (EAIPI) — an industry resource offering insights into sustainable materials, energy efficiency, and environmental compliance in foam production.

n-Pentane | Isopentane | Cyclopentane

In today’s global chemical market, Pentane isomers play a vital role across industries ranging from polyurethane foam insulation to refrigeration systems and chemical extraction processes. High-quality Pentane products—particularly n-Pentane (CAS 109-66-0), Isopentane (CAS 78-78-4), and Cyclopentane (CAS 287-92-3)—are essential raw materials for manufacturers seeking efficiency, purity, and environmental compliance.

1. Overview of Pentane Isomers

Pentane is a family of hydrocarbons (C₅H₁₂) consisting of three structural isomers:

• n-Pentane — a straight-chain hydrocarbon known for its strong solvent power and consistent evaporation rate.
• Isopentane (2-Methylbutane) — a branched isomer offering a lower boiling point, ideal for refrigerant and foam-blowing applications.
• Cyclopentane — a cyclic hydrocarbon with excellent insulation performance and zero ozone-depleting potential (ODP).

All three are clear, colorless liquids with low toxicity, high volatility, and compatibility with a wide range of industrial materials.

2. Technical Comparison

Property	n-Pentane	Isopentane (2-Methylbutane)	Cyclopentane
CAS No.	109-66-0	78-78-4	287-92-3
Chemical Formula	C₅H₁₂	C₅H₁₂	C₅H₁₀
Boiling Point (°C)	36.1	27.8	49.3
Density (20°C, g/cm³)	0.626	0.620	0.746
Flash Point (°C)	-49	-51	-37
Applications	Solvent, extraction, blowing agent	Foam blowing, refrigerant blend	Insulation foaming agent

These distinct properties make each isomer suited for specific applications, ensuring performance consistency and compliance with global environmental standards.

3. Industrial Applications

• Refrigeration & Insulation Foams:
  Cyclopentane and Isopentane are widely used as eco-friendly blowing agents in polyurethane (PU) and polyisocyanurate (PIR) foam production. They offer high insulation efficiency with low global warming potential (GWP).
• Solvent Extraction:
  n-Pentane serves as a clean, fast-evaporating solvent in the pharmaceutical, adhesive, and oil extraction sectors.
• Chemical Blends:
  Blended Pentanes (n-/Isopentane or Cyclo/Isopentane) are tailored for optimized foam density, flow, and expansion performance.

4. Quality & Packaging

High-purity Pentane products (95%–99%) are available in ISO tanks, drums, and bulk deliveries, ensuring safe transportation and global supply reliability. Each batch is tested for purity, moisture, and color to meet international quality standards.

5. Sustainability & Global Reach

As environmental regulations tighten worldwide, the transition to non-CFC, non-HCFC blowing agents has accelerated. Cyclopentane and Isopentane are now preferred alternatives for manufacturers seeking greener, high-performance materials. With stable supply capability and flexible logistics, reliable Pentane suppliers help global partners maintain consistent production and cost efficiency.

For manufacturers and distributors seeking high-purity Pentane isomers that meet international standards, reliability and consistency are key. Whether you require n-Pentane for solvent extraction, Isopentane for refrigerant formulations, or Cyclopentane for eco-friendly foam production, sourcing from trusted global suppliers ensures performance and safety.

Learn more about sustainable blowing agents and global chemical standards from ChemEurope — a leading resource for chemical industry insights. Partner with reliable Pentane producers today to secure stable supply, technical support, and long-term value in your production chain.

Polyurethane Rigid Foam (PUR) is a high-performance, closed-cell insulation material widely used in cold storage, cold-chain logistics, industrial refrigeration, and other low-temperature insulation applications. Its excellent thermal insulation, structural stability, and adaptability make it the material of choice for modern insulation projects.

Its core advantages include:

1. Outstanding Thermal Insulation

Low Thermal Conductivity: PUR exhibits thermal conductivity as low as 0.018–0.024 W/(m·K), making it one of the most effective insulation materials currently available. This reduces energy loss and lowers operational costs. High Closed-Cell Content (≥90%): The closed-cell structure blocks air convection, enhances moisture resistance, and prevents performance degradation due to water vapor infiltration.

Enhancement: The use of high-purity Cyclopentane, Isopentane, or n-Pentane as blowing agents ensures that the foam maintains its low thermal conductivity and closed-cell integrity over time, directly contributing to superior insulation efficiency.

2. Structural Strength and Durability

Compressive Strength and Deformation Resistance: With densities typically ranging from 35–60 kg/m³ and compressive strengths of 150–300 kPa, PUR can support internal racks, equipment, and transport loads. Dimensional Stability: Maintains its volume across extreme temperatures (-50°C to +100°C) with minimal shrinkage or cracking, ensuring long-term reliability.

Enhancement: The controlled purity of pentane-based blowing agents (<2 ppm sulfur, <50 ppm moisture) prevents defects during production and guarantees that the foam retains its strength and dimensional stability throughout its lifecycle.

3. Easy Installation and Adaptability

On-Site Spraying / Pouring: PUR can be applied seamlessly onto walls, roofs, or cavities, eliminating thermal bridges and providing a continuous insulation layer. Compatibility with Multiple Substrates: Bonds firmly to concrete, metal sheets, and composite panels, making it ideal for complex cold storage structures.

Enhancement: Using optimized pentane blends ensures uniform foam expansion and adhesion, improving application efficiency and minimizing material waste.

4. Environmental Friendliness and Safety

Low Global Warming Potential (GWP): Modern PUR systems employ environmentally friendly blowing agents such as Cyclopentane, Isopentane, or water-based formulations, reducing environmental impact. Fire Safety: With proper flame retardants, PUR can achieve B1-class flame resistance (GB 8624-2012), meeting stringent cold storage fire standards.

Enhancement: Our high-purity pentane products are fully compliant with international environmental regulations, providing a sustainable and safe option for manufacturers aiming to meet both GWP and fire safety requirements.

5. Economic Advantages

Although initial costs may be higher than traditional materials like EPS or rock wool, PUR’s long lifespan (20+ years) and energy-saving properties significantly reduce operating costs.

Enhancement: By selecting our reliable pentane blowing agents, manufacturers can achieve consistent foam quality and maximize energy efficiency, enhancing ROI over the lifetime of the insulation system.

Application Considerations

Controlled Installation Environment: Surfaces must be dry and clean; recommended temperature is 15–35°C with humidity below 85%. Insulation Thickness Design: Determined by the target cold storage temperature (e.g., -18°C for refrigeration or -60°C for ultra-low temperature). Typical PUR layers range from 50–150 mm. Safety Protection: Workers must wear protective gear to avoid exposure to uncured chemicals.

Enhancement: Using high-purity pentane ensures predictable foam behavior even under varying environmental conditions, reducing installation risk and ensuring design specifications are met.

Why Pentane-Based Blowing Agents Are Critical

The superior performance of PUR depends directly on the quality of the blowing agent. Our Cyclopentane, Isopentane, and n-Pentane products offer:

Purity Control: Low sulfur (<2 ppm) and low moisture (<50 ppm) for defect-free foam. Processing Stability: Uniform cell structure for optimal insulation and mechanical strength. Versatility: Suitable for a wide range of applications including cold storage, refrigerated trucks, and PIR/PUR panels. Environmental Compliance: Non-ozone-depleting, low GWP, aligned with global regulations.

Conclusion

Polyurethane Rigid Foam remains the top choice for modern cold storage insulation, offering unparalleled thermal performance, durability, and adaptability. High-purity pentane-based blowing agents are essential to fully realize these benefits, ensuring:

Maximum thermal insulation efficiency Consistent structural integrity Reliable production and long-term performance Compliance with environmental and fire safety standards

By choosing our products, manufacturers can deliver high-quality, energy-efficient, and environmentally responsible insulation solutions, ensuring optimal performance for decades.

n-Pentane 95%: Cost-Effective Blowing Agent for Insulation and Industrial Applications

Introduction

As industries worldwide move toward energy efficiency and sustainable construction, demand for versatile and affordable raw materials continues to grow. One such material is n-Pentane 95%, a high-performance hydrocarbon solvent widely recognized for its role in insulation foam manufacturing and industrial formulations.

Why Choose n-Pentane 95%?

Optimized Purity for Industrial Use

• Guaranteed 95% purity ensures consistent quality.
• Ideal for large-scale industrial applications where ultra-high purity is unnecessary.
• Balances performance and cost efficiency, making it a preferred choice for manufacturers.

Preferred Blowing Agent in Insulation Panels

• Extensively used in PU (polyurethane) and PIR (polyisocyanurate) sandwich panels.
• Common applications: roofing boards, cold storage insulation panels, and energy-saving construction materials.
• Compatible with modern production lines, helping manufacturers meet regional energy-efficiency standards.

Cost Efficiency

• More economical compared to higher-purity solvents.
• Attractive for bulk procurement and regular industrial use.
• Delivers reliable results without compromising application performance.

Versatile Industrial Applications

• Applied in adhesives, coatings, and cleaning formulations.
• Fast evaporation rate enhances efficiency in manufacturing processes.
• Reliable solvent properties make it suitable across multiple industrial sectors.

Packaging and Logistics

• Supplied in ISO tanks, steel drums, or customized bulk packaging.
• Logistics partners ensure compliance with international hazardous goods regulations.
• Safe and timely delivery for global clients.

Market Outlook

• Rapid construction growth in the Middle East, Asia, and emerging markets drives demand.
• Rising focus on energy-saving insulation materials strengthens n-Pentane’s role in sustainable infrastructure.
• n-Pentane 95% remains a cornerstone raw material for manufacturers delivering cost-effective, high-quality solutions.

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.