Isooctane (2,2,4-Trimethylpentane) – ACS Grade Hydrocarbon

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Chemical Identity

  • Chemical Name: Isooctane
  • IUPAC Name: 2,2,4-Trimethylpentane
  • Molecular Formula: C₈H₁₈
  • Molecular Weight: 114.23 g/mol
  • CAS Number: 540-84-1
  • EINECS Number: 208-759-1

Physical Properties

  • Appearance: Clear, colorless liquid
  • Odor: Mild hydrocarbon-like scent
  • Boiling Point: ~99°C (~210°F)
  • Melting Point: -107°C (-161°F)
  • Flash Point: -12°C (~10°F), Closed Cup
  • Density: ~0.692 g/cm³ at 20°C
  • Refractive Index: 1.391–1.392 at 20°C
  • Vapor Pressure: ~49 mmHg at 25°C
  • Auto-ignition Temperature: ~415°C (~779°F)
  • Solubility: Insoluble in water; highly soluble in organic solvents

Chemical Properties

  • Purity: ≥ 99% (Industrial and Analytical Grades Available)
  • Stability: Stable under normal conditions, flammable in vapor form
  • Chemical Family: Alkane (Branched hydrocarbon)

Description

Isooctane, also known as 2,2,4-Trimethylpentane, is a high-purity hydrocarbon commonly used as a standard reference fuel and in various industrial applications. It is known for its role in determining the octane rating of gasoline due to its excellent anti-knock properties.

Applications of Isooctane (Trimethylpentane)

Fuel Industry

  • Octane Rating Reference: Isooctane is the standard reference compound for determining the octane rating of fuels.
  • High-Performance Fuels: Used in aviation and race car fuels for its superior anti-knock properties.
  • Fuel Additive: Enhances fuel stability and performance in internal combustion engines.

Solvent

  • Non-Polar Solvent: Used as a solvent in organic chemical reactions and extractions.
  • Laboratory Applications: Frequently employed in chromatography and other analytical techniques.

Industrial Applications

  • Adhesives and Coatings: Utilized in the formulation of industrial adhesives, varnishes, and paints due to its solvency.
  • Lubricants: Acts as a diluent or carrier in lubricant production.
  • Petrochemical Feedstock: Serves as a precursor for synthesizing other chemical intermediates.

Testing and Research

  • Engine Testing: A key component in engine performance testing and calibration of fuel blends.
  • Standard Calibration: Used in laboratories as a high-purity reference material for analytical testing.

Cleaning and Degreasing

  • Industrial Cleaners: Isooctane’s ability to dissolve oils and greases makes it ideal for cleaning machinery and components.
  • Electronics Manufacturing: Used in cleaning processes for electronic parts and circuits.

Specialty Applications

  • Pharmaceuticals: Occasionally used as a solvent or intermediate in drug manufacturing.
  • Aerospace Industry: Contributes to the production of high-performance materials and fuels.
  • Cosmetics: Can be used as a carrier solvent in certain cosmetic formulations.

Storage Guidelines

  • Temperature:
    • Store at ambient temperatures in a cool, dry place.
    • Avoid exposure to heat sources or direct sunlight.
  • Containers:
    • Use tightly sealed, corrosion-resistant containers such as steel or HDPE drums.
    • Ensure containers are clearly labeled.
  • Environment:
    • Keep in a well-ventilated area to prevent vapor accumulation.
    • Store away from incompatible materials like oxidizing agents, acids, or bases.
  • Fire Safety:
    • Isooctane is highly flammable. Store away from ignition sources, open flames, and static electricity.
    • Utilize explosion-proof equipment in storage areas.
  • Spill Containment:
    • Ensure the storage area has secondary containment measures (e.g., spill trays) to prevent leaks or spills from spreading.

Handling Guidelines

  • Personal Protective Equipment (PPE):
    • Wear appropriate PPE, including:
      • Chemical-resistant gloves (e.g., nitrile or neoprene)
      • Safety goggles or face shield
      • Flame-resistant clothing
      • Respiratory protection in areas with insufficient ventilation
  • Work Area:
    • Handle in a well-ventilated space or under a fume hood to avoid inhaling vapors.
    • Use non-sparking tools and explosion-proof equipment.
  • Precautions:
    • Avoid contact with skin, eyes, or clothing.
    • Do not eat, drink, or smoke while handling the product.
    • Ground and bond containers during transfers to prevent static discharge.
  • First Aid Measures:
    • Inhalation: Move to fresh air immediately and seek medical attention if symptoms persist.
    • Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing.
    • Eye Contact: Rinse eyes with water for at least 15 minutes. Seek medical attention if irritation occurs.
    • Ingestion: Do not induce vomiting. Rinse mouth and seek immediate medical attention.

Additional information

Size

100mL (3.3 Fl Oz), 250mL (8 Fl Oz), 500mL (16 Fl Oz), 1000mL (32 Fl Oz)