Hexane vs Petroleum Ether
Comprehensive comparison of Hexane and Petroleum Ether including physical properties, applications, safety considerations, and pricing. Alliance Chemical supplies both chemicals in various grades and concentrations.
Quick Comparison Summary
Physical & Chemical Properties Comparison
| Property | Hexane | Petroleum Ether | Key Difference |
|---|---|---|---|
| Boiling Point | 68.73 °C | 30-70°C (typical range, varies with grade) | Hexane boils 38.73°C higher |
| Flash Point ⚠️ | -22 °C | -57 to -18°C (typical range, varies with grade) | Petroleum Ether is more flammable |
| Density | 0.6594 g/cm³ | 0.620-0.675 g/cm³ (typical range, varies with grade) | Hexane is denser |
| Water Solubility | 0.0013 g/L at 25 °C | Insoluble in water | |
| pH | N/A | N/A | Data not available for direct comparison |
| Molecular Weight | 86.18 g/mol | Varies | Hexane is heavier molecule |
| Melting Point | -95 °C | Varies | Petroleum Ether melts 95°C higher |
| Vapor Pressure | 160 hPa at 20 °C | Varies with composition and temperature | Hexane is more volatile |
| Auto-ignition Temp ⚠️ | 225 °C | 240-280 °C | Hexane auto-ignites at lower temp |
| Vapor Density | 2.97 (air = 1) | Varies (air = 1) | Hexane vapors sink more |
| Appearance | Clear, colorless liquid | Clear, colorless liquid | Similar appearance |
| Odor | Slightly sweet odor | Gasoline-like |
Data sourced from PubChem (NIH), OSHA Technical Guidelines, and Alliance Chemical laboratory analysis. Last verified March 2026.
Applications & Use Cases
Hexane Best For:
- Industrial solvent
- Laboratory reagent
- Oil extraction
- Adhesive production
- Cleaning agent
Petroleum Ether Best For:
- Laboratory solvent
- Extraction of lipids and oils
- Chromatography
- Cleaning agent
- Reagent in organic synthesis
Choosing Between Them
The right choice depends on your specific application, required purity, and handling capabilities. Contact our team for guidance on which chemical best fits your needs.
Safety & Handling Comparison
Storage Requirements
Always store in original containers in a cool, well-ventilated area per NFPA 30 guidelines. Refer to each product's SDS for specific storage temperature ranges and incompatible materials.
PPE Requirements
At minimum: chemical-resistant gloves, safety goggles, and adequate ventilation per OSHA 29 CFR 1910.132-138. Check each SDS below for chemical-specific PPE requirements.
Fire Hazard
Petroleum Ether has a lower flash point and requires extra fire precautions.
Safety Data Sheets (SDS)
Which Chemical Should You Choose?
Decision Snapshot
| Decision Factor | Better Fit | Why |
|---|---|---|
| Evaporation Profile | Petroleum Ether | Lower boiling point supports faster flash-off. |
| Fire Safety Margin | Hexane | Higher flash point generally reduces ignition risk in handling and storage. |
| Application Breadth | Hexane | Compares distinct listed use cases to avoid generic recommendations. |
| Purity Flexibility | Standard grades | Based on availability of 99%+ concentration options in current product metadata. |
Choose Hexane if:
Best for: Processes needing tighter composition control and reproducible extraction behavior.
Watch-out: May cost more for jobs where a mixed petroleum fraction is sufficient.
- You specifically need support for laboratory reagent applications.
- You specifically need support for oil extraction applications.
- You need a higher-boiling solvent that stays in-process longer.
- Fire-risk controls are a priority and you prefer the higher flash-point option.
Choose Petroleum Ether if:
Best for: General hydrocarbon solvent work where broad-boiling blends are acceptable.
Watch-out: Boiling-range variability can reduce repeatability in sensitive workflows.
- You specifically need support for laboratory solvent applications.
- You specifically need support for extraction of lipids and oils applications.
- You want a faster-evaporating solvent for quick-dry production steps.
- You can manage stricter flammable-liquid controls for lower flash-point performance.
Commercial & Fulfillment Snapshot
Built for purchasing teams that need predictable dispatch, compliant documentation, and freight flexibility from parcel to full truckload.
| Procurement Advantage | Hexane | Petroleum Ether |
|---|---|---|
| Grade & Concentration Coverage | multiple concentration options by application with industrial/lab procurement support. | multiple concentration options by application with industrial/lab procurement support. |
| Packaging Depth | small packs through bulk freight quantities for parcel, pallet, and truckload planning. | small packs through bulk freight quantities for parcel, pallet, and truckload planning. |
| Dispatch SLA | Order by 1 PM CT (Mon-Thu) or noon CT Friday for same-business-day outbound from Taylor, TX. | Order by 1 PM CT (Mon-Thu) or noon CT Friday for same-business-day outbound from Taylor, TX. |
| Freight Optionality | UPS Ground for small packs plus LTL/FTL lanes through ABF, SEFL, Saia, XPO, and partner carriers. | UPS Ground for small packs plus LTL/FTL lanes through ABF, SEFL, Saia, XPO, and partner carriers. |
| Compliance Readiness | SDS ready now; COA/TDS support available pre-PO and post-order. | SDS ready now; COA/TDS support available pre-PO and post-order. |
| Bulk Procurement CTA | Request bulk quote or call (512) 365-6838. | Request bulk quote or call (512) 365-6838. |
Need Help Deciding? Our technical team can help you choose the right chemical for your specific application. Email sales@alliancechemical.com for expert guidance.
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Alliance Chemical supplies both Hexane and Petroleum Ether in various grades and package sizes.