High‑Purity Cyclopentane for PU Foam Insulation and Solvent Applications
Cyclopentane is a high‑efficiency hydrocarbon blowing agent widely used in rigid polyurethane foam production. With stable physical properties, low impurity levels, and compliance with GB/T 18825‑2002, it has become the preferred replacement for traditional HCFC blowing agents in global refrigeration and insulation manufacturing.
Product Overview
Chinese Name: 环戊烷 English Name: Cyclopentane CAS No.: 287‑92‑3 Molecular Formula: C5H10 (CH2)5 Molecular Weight: 70.08
Physical Properties:
- Melting point: −93.7°C
- Boiling point: 49.3°C
- Flash point: −37°C
- Relative density (water=1): 0.75
- Explosion limits: 1.1%–8.7%
- Appearance: Colorless, transparent liquid with a mild aromatic odor
- Solubility: Insoluble in water; soluble in alcohols, ethers, benzene, carbon tetrachloride, acetone, and most organic solvents
- Hazard classification: 3.1 (Flammable liquid)
Quality Specifications
- Cyclopentane content ≥95%
- n‑Hexane ≤0.001%
- Benzene ≤0.0001%
- Other C6 and below hydrocarbons: balance
- Moisture ≤0.015%
- Sulfur ≤2 µg/mL
- Tested according to GB/T 18825‑2002
These specifications ensure stable foaming performance, consistent cell structure, and reliable downstream processing for industrial users.
Key Applications
Blowing Agent for Rigid Polyurethane Foam
Cyclopentane is widely used in refrigerators, freezers, cold‑storage panels, and insulation systems. It provides excellent thermal performance and meets global environmental compliance requirements.
Fast‑Evaporating Solvent
Suitable for coatings, cleaning formulations, and industrial processes requiring rapid evaporation.
Chromatography Reference Material
High purity makes it suitable for analytical calibration and laboratory use.
Safety and Handling
Cyclopentane is a highly flammable and explosive liquid. Proper safety measures are essential:
- Store in cool, dry, well‑ventilated areas
- Keep away from heat, sparks, and oxidizing agents
- Ensure static grounding during pipeline transfer
- Avoid inhalation and direct contact with eyes or skin
- Use appropriate protective equipment during handling
Why Manufacturers Choose Cyclopentane
Cyclopentane offers a strong combination of performance, environmental compliance, and cost efficiency:
- Excellent insulation results in refrigeration and cold‑chain equipment
- Zero ODP, compliant with global environmental regulations
- Stable foaming behavior and uniform cell structure
- Reliable supply chain and competitive pricing
It is the ideal solution for manufacturers upgrading from HCFC‑based blowing agents.
Partner With Us
We supply high‑purity Cyclopentane with complete documentation including COA, SDS, TDS, and export‑ready logistics support. For manufacturers producing refrigerators, freezers, PU foam panels, or insulation materials, Cyclopentane enhances product performance and production efficiency.
Key Takeaways
- Cyclopentane is a high-purity hydrocarbon blowing agent used in rigid polyurethane foam and complies with global environmental standards.
- Its physical properties include a boiling point of 49.3°C, a melting point of -93.7°C, and a flammable hazard classification of 3.1.
- Cyclopentane serves key applications such as blowing agent for foam, fast-evaporating solvent, and chromatography reference material.
- Safety measures for handling cyclopentane include storing in well-ventilated areas and avoiding direct contact with skin or eyes.
- Manufacturers prefer cyclopentane for its zero ODP, excellent insulation performance, and reliable supply chain.
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