Overview
Isohexane (C₆H₁₄, CAS 107‑83‑5) is widely used across electronics, pharmaceuticals, precision cleaning, and industrial manufacturing. Purity level directly affects downstream performance, making correct grade selection essential for procurement and engineering teams.
Industrial Grade Isohexane (≥98%)
Applications
- Ink dilution
- General metal degreasing
- Adhesive solvent
- Foam processing
Key Specifications
- Isohexane content ≥98.0%
- n‑Hexane ≤1.5%
- Distillation range: 57–62°C
- Bromine index ≤100 mgBr/100g
- Sulfur ≤1 mg/kg
- Water ≤100 mg/kg
- Saybolt color ≥+28
- Evaporation residue ≤1 mg/100mL
Use Case
Best for cost‑effective, general‑purpose solvent applications.
High‑Purity Grade Isohexane (≥99%)
Applications
- Optical lens cleaning
- Pharmaceutical intermediate extraction
- Plastic mold cleaning
- Food‑grade equipment cleaning
Enhanced Specifications
- Isohexane ≥99.0%
- n‑Hexane ≤0.3%
- C5 components ≤0.1%
- Aromatics ≤1 ppm
- Sulfur ≤0.1 ppm
- Bromine index ≤1 mgBr/100g
- Water ≤50 ppm
- Saybolt color ≥+30
- Distillation range: 59–62°C
Use Case
Ideal for sensitive environments requiring low residue and high chemical stability.
Ultra‑High‑Purity Electronic Grade (≥99.5%)
Applications
- PCB cleaning
- Semiconductor packaging
- Precision electronic component ultrasonic cleaning
Critical Specifications
- Isohexane ≥99.5%
- 2‑Methylpentane ≥97%
- Aromatics <0.1 ppm
- No olefins detected
- No metal ions detected
- Water ≤20 ppm
- Evaporation residue <0.1 mg/100mL
Use Case
Designed for contamination‑free, high‑precision electronic manufacturing.
Universal Physical and Safety Parameters
- Molecular formula: C₆H₁₄
- Density (20°C): 0.653–0.659 g/cm³
- Boiling point: 60.3°C
- Flash point: –23°C (Class A flammable liquid)
- Explosion limits: 1.2%–7.0% (V/V)
- Packaging: 137 kg drum, 25 kg drum, bulk tank truck
Choosing the Right Grade
98% Industrial Grade
General cleaning, dilution, degreasing, foam processing.
99% High‑Purity Grade
Optical, medical, food‑grade, and precision equipment cleaning.
99.5% Ultra‑High‑Purity Grade
Semiconductor, PCB, and high‑end electronics manufacturing.
Conclusion
Isohexane is no longer a simple solvent. It is a precision chemical whose purity level directly influences process stability, product quality, and compliance. Understanding grade differences ensures better sourcing decisions and optimized performance across industrial and high‑tech applications.