Cyclopentane
Pentamethylene, CP, C5H10
- CAS
- 287-92-3
- EC
- 206-016-6
- Sectors
- Plastics & Polymers, Building & Construction
Cyclopentane (CAS 287-92-3) is a high-purity alicyclic hydrocarbon supplied as a colourless liquid with a petrol-like smell, used mainly as a blowing agent for polyurethane and polyisocyanurate foams and as a non-polar solvent for synthetic resins and rubber adhesives. Its excellent thermal insulation properties and zero Ozone Depletion Potential (ODP) make it a preferred alternative to HCFCs and HFCs. This technical grade solvent is characterized by high volatility and a low boiling point, ensuring efficient expansion during the polymerization process. It provides superior structural integrity and uniform cell structure in rigid foam applications across the refrigeration and construction sectors. Its chemical stability and compatibility with diverse polymer matrices offer manufacturers a versatile solution for high-performance material engineering.
Typical Properties
| Molecular formula | C5H10 |
|---|---|
| Molecular weight | 70.13 g/mol |
| Appearance | colourless liquid with a petrol-like smell |
| Form | Powder |
| Color | White |
| Odor | Like gasoline; mild, sweet. |
| Melting point | -93.9 °C |
| Boiling point | 49.2 °C @ Press: 760 Torr |
| Density | 0.7457 g/cm³ @ Temp: 20 °C |
| Water solubility | Miscible with ethanol, ether and acetone. Slightly miscible with water. |
| Flash point | −35 °F |
| GHS signal word | Danger · Flammable, Irritant / harmful, Health hazard |
| HS code | 29021990 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Cyclopentane
Applications
- Rigid Polyurethane Foams: Acts as the primary physical blowing agent for insulation used in domestic appliances like refrigerators and freezers to optimize energy efficiency.
- Construction Insulation Panels: Employed in the production of SIPs and sandwich panels to enhance thermal resistance and structural R-values in commercial buildings.
- Solvent for Synthetic Rubber: Used as a high-efficiency processing solvent in the synthesis of specialized elastomers and high-bond-strength industrial adhesives.
Safety & Risks
Cyclopentane is classified as a Highly Flammable Liquid and Vapor. It may cause drowsiness or dizziness if inhaled and is harmful to aquatic life with long-lasting effects. Handling requires explosion-proof equipment, and personnel must use nitrile gloves, safety goggles, and antistatic protective clothing.
Packaging
• 150 kg Steel Drums
• 17 mt Tank Trucks
• ISO Tanks for bulk industrial supply