Cyclopentane/n-Pentane Blend 10/90 for PU Rigid Foam

Technical product logo for Pentane Blend 10/90 (CP10) showing cyclopentane and n-pentane chemical structures with a gear badge.

Cyclopentane/n-Pentane Blend 10/90 for PU Rigid Foam

Cyclopentane 10% / n-Pentane 90% blend — a PU rigid foam blowing agent, F1 in the Cyclopentane & n-Pentane Blends series (F1–F9, ratio tolerance ± 2%).

Main Uses: PU rigid foam blowing agent.
Group 2 of 3 — Cyclopentane & n-Pentane Blends (see full three-group Pentane Blends Ratio Table for n-Pentane/Isopentane and Cyclopentane/Isopentane blends)

Components Specifications
F1 F2 F3 F4 F5 F6 F7 F8 F9
cC5
(Cyclopentane) %		 10 20 30 40 50 60 70 80 90
nC5
(n-Pentane)%		 90 80 70 60 50 40 30 20 10
Note: adjustment range for cC5 and nC5 content: ± 2%

Note: the final specification shall be subject to the factory test result and Certificate of Analysis (COA).

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Description

Cyclopentane 10% / n-Pentane 90% blend — a physical blowing agent for polyurethane (PU) rigid foam, positioned as the cost-oriented grade in the Cyclopentane & n-Pentane Blends series.

Applications

  • General building and pipe insulation boards
  • Cost-sensitive PU rigid foam manufacturing
  • Large-volume spray and panel foam applications
  • General-purpose replacement for HCFC/HFC blowing agents under Montreal Protocol phase-out programs

Specifications

  • Composition: Cyclopentane 10 ± 2% weight, n-Pentane 90 ± 2% weight
  • CAS No.: Cyclopentane 287-92-3; n-Pentane 109-66-0
  • Appearance: Colorless, transparent liquid
  • Density (20°C): Subject to batch COA
  • Flash Point: Subject to batch COA (Flammable Liquid, PG II)
  • Vapour Pressure (20°C): Subject to batch COA

Transport & Regulatory

  • UN Number: UN 1265 (Pentanes, liquid)
  • Hazard Class: Class 3 Flammable Liquid, Packing Group II
  • Packaging: ISO Tank

Safety Data Sheet (SDS) & COA

Full hazard statements, handling, and storage guidance are provided in the Safety Data Sheet (SDS), available on request along with the batch-specific Certificate of Analysis.

Note: the final specification shall be subject to the factory test result and Certificate of Analysis (COA).

This blend is one of the Cyclopentane/n-Pentane blends offered across the PU rigid foam blowing agent range — see the Blowing Agents category for the complete series.

Documents

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