Cyclopentane/Isopentane Blend 70/30 (Blowing Agent)

Cyclopentane/Isopentane Blend 70/30 (Blowing Agent)

CP-70, a Cyclopentane/Isopentane 70/30 blend, is a clear liquid foam blowing agent for PU insulation, designed to replace HCFC and HFC agents with safer, efficient performance.

Description

CP-70 (Cyclopentane/Isopentane Blend – 70:30)

Product Identification

  • Product Name: CP-70 (Cyclopentane/Isopentane Blend – 70:30)

  • Synonyms: Cyclopentane (Pentamethylene) / Isopentane (2-Methylbutane, Ethyldimethylmethane) Blend

  • Proper Shipping Name: Pentanes, liquid

  • Chemical Formula: Not Applicable

  • Other Identification: Not Available

Manufacturer Information

  • Company: Dongying Liangxin Petrochemical Technology Development Limited Company

  • Address: No. 117, Guangqing Rd., Guangrao County, Dongying, Shandong, China

  • Phone: +86 178 1030 0898

  • Website: www.junyuanpetroleumgroup.com

  • Email: info@junyuanpetroleumgroup.com

  • Emergency Contact: +86 178 1030 0898


Hazard Identification

  • Poisons Schedule: S5

  • Classification:

    • Flammable Liquids Category 2

    • Aspiration Hazard Category 1

    • Eye Irritation Category 2B

    • STOT – Single Exposure (Narcotic Effects) Category 3

    • Hazardous to the Aquatic Environment – Long-Term Hazard Category 2

  • Hazard Pictograms: Health Hazard, Flame, Environment, Exclamation Mark

  • Signal Word: Danger

Hazard Statements:

  • H225: Highly flammable liquid and vapour.

  • H304: May be fatal if swallowed and enters airways.

  • H320: Causes eye irritation.

  • H336: May cause drowsiness or dizziness.

  • H411: Toxic to aquatic life with long-lasting effects.

  • AUH066: Repeated exposure may cause skin dryness or cracking.

Precautionary Measures:

  • Avoid ignition sources; use in well-ventilated areas.

  • Wear protective gloves, clothing, and eye protection.

  • Do not induce vomiting if swallowed; seek immediate medical attention.

  • Store in a cool, ventilated area and keep containers tightly closed.


Composition / Ingredients

CAS Number Component Weight %
287-92-3 Cyclopentane 67–73%
78-78-4 Isopentane 27–33%
109-66-0 n-Pentane <5%

Physical and Chemical Properties

  • Appearance: Clear, colorless liquid

  • Odour: Gasoline-like

  • Physical State: Liquid

  • Flash Point: –51 °C

  • Evaporation Rate: Not Available

  • Flammability: Highly flammable

  • Vapour Pressure: 53.4 kPa

  • Upper Explosive Limit: 8.7%

  • Lower Explosive Limit: 1.1%

  • Viscosity: 0.255 cSt @ 20°C

  • Density: 0.749 g/mL at 25°C


Stability and Reactivity

  • Product is stable under recommended storage conditions.

  • Avoid contact with oxidising agents.

  • Hazardous polymerization will not occur.

  • Combustion may produce CO₂ and other pyrolysis products.


Toxicological Information

  • Inhalation: May cause dizziness, drowsiness, CNS depression.

  • Ingestion: Aspiration can cause chemical pneumonitis; may be fatal.

  • Skin Contact: Repeated exposure may cause dryness, cracking, or irritation.

  • Eye Contact: May cause irritation, redness, and temporary impairment of vision.

  • Chronic Effects: Long-term exposure may affect the nervous system and respiratory function.

Acute Toxicity:

  • CP-70 blend: LC50 (inhalation, rat) >25.3 mg/L, LD50 (oral, rat) >2000 mg/kg

  • n-Pentane: LD50 (dermal, rabbit) 3000 mg/kg


Ecological Information

  • Toxic to aquatic organisms; may cause long-term environmental effects.

  • Persistence & Degradability: Cyclopentane (low), Isopentane (high), n-Pentane (low)

  • Bioaccumulation: Low for all components

  • Mobility in Soil: Low for all components


Handling and Storage

  • Use approved containers (ISO tanks, drums).

  • Avoid sparks, flames, and static discharge.

  • Ensure good ventilation.

  • Store away from oxidizing agents and direct sunlight.


Firefighting Measures

  • Extinguishing Media: Foam, dry chemical powder, CO₂

  • Special Hazards: Vapours are highly flammable and explosive in air

  • Protective Equipment: Breathing apparatus, protective gloves, and clothing


Transport Information

  • UN Number: 1265

  • Shipping Name: Pentanes, liquid

  • Class: 3 (Flammable Liquids)

  • Packing Group: II

  • Environmental Hazard: Marine pollutant


Applications

  • Foam blowing agents as an alternative to HCFC or HFC.

  • Used in PU foam insulation for heat absorption and energy-efficient applications.

Product Features:

  • Clear, colourless, highly flammable liquid

  • Strong hydrocarbon odour

  • Can replace ozone-depleting HCFC/HFC blowing agents

Packaging:

  • Standard ISO tank containers (25–26 m³)

  • Store in cool, dry, well-ventilated area

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