Introduction
Cyclopentane is an eco-friendly chemical widely used as a physical blowing agent in modern foam production. With the global shift towards environmental sustainability, cyclopentane is replacing traditional CFCs and HCFCs in insulation and refrigeration foams.

FAQ: Cyclopentane and Blowing Agents

1️⃣ What is Cyclopentane?
Cyclopentane is a five-carbon cyclic hydrocarbon, non-toxic, colorless, and environmentally friendly. In foam production, it serves as a liquid physical blowing agent.

2️⃣ How does Cyclopentane act as a blowing agent?

• Cyclopentane vaporizes during foam formation, creating uniform bubbles in the polymer matrix.
• These bubbles form a closed-cell structure, providing lightweight and excellent thermal insulation.
• Unlike chemical blowing agents, cyclopentane does not rely on chemical reactions to produce gas.
• It is environmentally safe, with negligible ozone depletion potential and low global warming potential.

3️⃣ Applications of Cyclopentane in Foam Production

• Building Insulation: Sandwich panels, roof insulation, pipe insulation.
• Refrigeration: Foam layers in refrigerators, freezers, and air conditioners.
• High-End Packaging: Thermal packaging and cold chain foam materials.

4️⃣ Why choose Cyclopentane?

• Eco-friendly and safe, replacing CFCs/HCFCs.
• High thermal insulation performance.
• Suitable for multiple industries.
• Easy to handle as a liquid, vaporizes naturally during foam formation.

5️⃣ How to use Cyclopentane in foam production?

1. Add liquid cyclopentane to polyurethane or XPS foam systems.
2. During foam reaction, cyclopentane vaporizes and forms bubbles.
3. After curing, bubbles are sealed inside the foam, providing lightweight insulation.

Conclusion
Cyclopentane is a high-performance, eco-friendly physical blowing agent essential for modern insulation, refrigeration, and packaging foams. Its ability to form closed-cell foam structures ensures lightweight materials with superior thermal insulation.

Ensuring process stability and low-impurity performance for precision chemical applications

In a fine chemical R&D project, a company faced challenges with solvent impurities affecting product stability. To ensure research efficiency and process reliability, they selected our Isopentane 99% and Pentane series products.

Product Specifications:

• Isopentane: 99%
• n-Pentane: per batch records
• Cyclopentane: <100 ppm
• Heavy components: <100 ppm
• Light components: <0.5%
• Benzene: <10 ppm
• Total sulfur: <1 ppm
• Non-volatile matter: <1 mg/100 ml

After using this batch, the R&D team observed significantly improved solvent system stability and effective control of impurities, making the overall process smoother. The team commented, “The high purity and low impurity Pentane series greatly reduced process uncertainty, which is exactly the quality assurance we needed.”

Case Summary:
The high-purity Pentane series not only meets strict specification requirements but also provides reliable process support for fine chemical, electronic materials, and precision applications.

n-Hexane vs Hexane

n-Hexane vs Hexane

What is the difference between hexane and n-Hexane?

Hexane is a general term for all structural isomers with the molecular formula C6H14. n-Hexane is the straight-chain isomer, consisting of six carbon atoms connected in a continuous chain.

Why are the terms sometimes used interchangeably?

In industry, “hexane” often refers to a mixture of isomers, usually containing a high proportion of n-Hexane. In scientific, contractual, or regulatory documents, “n-Hexane” is used to specify the exact compound and avoid ambiguity.

Do they have different physical properties?

n-Hexane has a boiling point of approximately 69 °C and a relatively narrow property range. Hexane mixtures have a broader boiling range, depending on the proportion of branched isomers.

How are they used in practice?

Hexane mixtures are commonly used in gasoline blending, solvents, adhesives, and cleaning agents. n-Hexane (pure) is widely used in vegetable oil extraction, laboratory solvents, and industrial cleaning.

How should they be specified in contracts or technical documents?

Use “n-Hexane” when referring to the straight-chain compound. Use “hexane” when referring to commercial solvent mixtures, but always include a specification sheet or certificate of analysis showing isomer composition. For clarity, include CAS number, purity level, and regulatory references where applicable.

Key Takeaway

Hexane is the umbrella term for all C6H14 isomers. n-Hexane is the straight-chain isomer, most relevant in industrial and regulatory contexts. Always distinguish between the two in technical or legal documents to ensure precision and compliance.