Description
CP-70 (Cyclopentane/Isopentane Blend – 70:30)
Product Identification
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Product Name: CP-70 (Cyclopentane/Isopentane Blend – 70:30)
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Synonyms: Cyclopentane (Pentamethylene) / Isopentane (2-Methylbutane, Ethyldimethylmethane) Blend
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Proper Shipping Name: Pentanes, liquid
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Chemical Formula: Not Applicable
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Other Identification: Not Available
Manufacturer Information
Hazard Identification
Hazard Statements:
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H225: Highly flammable liquid and vapour.
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H304: May be fatal if swallowed and enters airways.
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H320: Causes eye irritation.
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H336: May cause drowsiness or dizziness.
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H411: Toxic to aquatic life with long-lasting effects.
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AUH066: Repeated exposure may cause skin dryness or cracking.
Precautionary Measures:
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Avoid ignition sources; use in well-ventilated areas.
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Wear protective gloves, clothing, and eye protection.
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Do not induce vomiting if swallowed; seek immediate medical attention.
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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
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Appearance: Clear, colorless liquid
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Odour: Gasoline-like
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Physical State: Liquid
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Flash Point: –51 °C
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Evaporation Rate: Not Available
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Flammability: Highly flammable
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Vapour Pressure: 53.4 kPa
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Upper Explosive Limit: 8.7%
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Lower Explosive Limit: 1.1%
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Viscosity: 0.255 cSt @ 20°C
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Density: 0.749 g/mL at 25°C
Stability and Reactivity
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Product is stable under recommended storage conditions.
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Avoid contact with oxidising agents.
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Hazardous polymerization will not occur.
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Combustion may produce CO₂ and other pyrolysis products.
Toxicological Information
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Inhalation: May cause dizziness, drowsiness, CNS depression.
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Ingestion: Aspiration can cause chemical pneumonitis; may be fatal.
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Skin Contact: Repeated exposure may cause dryness, cracking, or irritation.
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Eye Contact: May cause irritation, redness, and temporary impairment of vision.
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Chronic Effects: Long-term exposure may affect the nervous system and respiratory function.
Acute Toxicity:
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CP-70 blend: LC50 (inhalation, rat) >25.3 mg/L, LD50 (oral, rat) >2000 mg/kg
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n-Pentane: LD50 (dermal, rabbit) 3000 mg/kg
Ecological Information
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Toxic to aquatic organisms; may cause long-term environmental effects.
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Persistence & Degradability: Cyclopentane (low), Isopentane (high), n-Pentane (low)
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Bioaccumulation: Low for all components
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Mobility in Soil: Low for all components
Handling and Storage
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Use approved containers (ISO tanks, drums).
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Avoid sparks, flames, and static discharge.
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Ensure good ventilation.
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Store away from oxidizing agents and direct sunlight.
Firefighting Measures
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Extinguishing Media: Foam, dry chemical powder, CO₂
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Special Hazards: Vapours are highly flammable and explosive in air
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Protective Equipment: Breathing apparatus, protective gloves, and clothing
Transport Information
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UN Number: 1265
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Shipping Name: Pentanes, liquid
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Class: 3 (Flammable Liquids)
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Packing Group: II
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Environmental Hazard: Marine pollutant
Applications
Product Features:
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Clear, colourless, highly flammable liquid
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Strong hydrocarbon odour
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Can replace ozone-depleting HCFC/HFC blowing agents
Packaging:
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Standard ISO tank containers (25–26 m³)
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Store in cool, dry, well-ventilated area
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