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

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

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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