Isoctane AR Grade is an isomer of octane, and isoctane is more shock-resistant when burned in the cylinder of an internal combustion engine. CAS 540-84-1 EC 208-759-1

It is a significant hydrocarbon compound used in the fuel sector as a standard reference material and additive to improve fuel performance and stability.

General Information

• Name: Isooctane
• CAS Number: 540-84-1
• Molecular Weight: 114.23
• Molecular Formula: C8H18
• MDL Number: MFCD00008943
• EC Number: 208-759-1
• Isooctane is a colorless liquid primarily used as a fuel additive and combustion standard reference material.

Brand and Packaging

Brand: KeShi Packaging: 500ml × 20 bottles/case

Physical Properties

• Appearance: Colorless liquid
• Density: 0.692 g/cm³
• Boiling Point: 99°C
• Melting Point: -107°C
• Solubility: Practically insoluble in water; miscible with most organic solvents.

Chemical Properties

• Stability: Relatively stable; does not readily react with oxygen.
• Reactivity: As a hydrocarbon compound, participates in combustion reactions.

     H H H H
     | | | |
H3C-CH2-CH(CH3)-CH2-CH3
     | | | |
     H H H H

Quality inspection report

| Product Name  | Specification | Lot Number  | Molecular Formula | Molecular Weight | Lot Size | Inspection Unit | Sample Category | Report Date  | Inspection Basis   |
|---------------|---------------|-------------|-------------------|------------------|----------|-----------------|-----------------|--------------|--------------------|
| Isooctane     | Analytical Grade | 2024061801 | C8H18             | 114.23           | 900kg    | Production Unit | Organic         | 2024.06.20   | Q/CDKLHX0068-2023B |

| Test Item        | Standard Requirement | Test Result |
|------------------|----------------------|-------------|
| Content,% (Purity)| ≥99.0                | 99.4        |
| Appearance       | Colorless transparent liquid | Colorless transparent liquid |
| Acidity (as H+), mmol/g | ≤0.0016        | 0.0002      |
| Density (20°C), g/mL | 0.690～0.693      | 0.692       |
| Refractive Index | 1.390～1.393        | 1.392       |
| Evaporation Residue,% | ≤0.01           | 0.002       |
| Water Content (H2O),% | ≤0.05            | 0.01        |

Analysis Conclusion:
Meets the requirements of Q/CDKLHX0068-2023B for analytical grade.

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