Hydrocarbons
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Category：Organic Chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Definition & Composition
Hydrocarbons are organic compounds composed exclusively of hydrogen (H) and carbon (C) atoms.
- General Formula: CₓHᵧ
- Key Feature: Nonpolar, hydrophobic, and combustible.
Classification & Examples
| Category | Structure | Example Compounds | Properties |
|---|---|---|---|
| Alkanes (Paraffins) | C–C single bonds | Methane (CH₄), Octane (C₈H₁₈) | Saturated, low reactivity |
| Alkenes (Olefins) | C=C double bonds | Ethylene (C₂H₄), Propylene (C₃H₆) | Unsaturated, polymerization |
| Alkynes | C≡C triple bonds | Acetylene (C₂H₂) | Highly reactive, welding fuel |
| Aromatics | Benzene rings (C₆H₆) | Toluene, Xylene | Stable, carcinogenic potential |
Key Properties
| Property | Alkanes | Alkenes/Alkynes | Aromatics |
|---|---|---|---|
| Reactivity | Low (free radical) | High (electrophilic) | Moderate (substitution) |
| Boiling Point | Increases with chain length | Similar trend | Higher due to ring structure |
| Combustion | Clean flame (CH₄) | Sooty flame (C₂H₂) | Smoky flame (C₆H₆) |
Natural Sources & Extraction
| Source | Hydrocarbon Type | Extraction Method |
|---|---|---|
| Natural Gas | Methane (CH₄) | Drilling, fracking |
| Crude Oil | C5–C40 alkanes | Fractional distillation |
| Coal | Aromatics (e.g., benzene) | Destructive distillation |
Industrial Applications
| Industry | Use Case | Example Hydrocarbon |
|---|---|---|
| Energy | Gasoline, jet fuel | Octane (C₈H₁₈) |
| Polymers | Plastics (PE, PP, PVC) | Ethylene (C₂H₄) |
| Chemicals | Solvents, synthetic rubbers | Butadiene (C₄H₆) |
| Pharmaceuticals | Drug precursors (e.g., aspirin) | Toluene (C₇H₈) |
Environmental Impact
| Issue | Cause | Mitigation |
|---|---|---|
| CO₂ Emissions | Combustion of fossil fuels | Carbon capture (CCS) |
| Air Pollution | Incomplete combustion (CO, soot) | Catalytic converters |
| Spills | Oil leaks/accidents | Bioremediation |
Safety & Handling
| Hazard | Precaution | Example |
|---|---|---|
| Flammability | Store in flame-proof areas | Gasoline (Flash point: -43°C) |
| Toxicity | Ventilation for volatile aromatics | Benzene (carcinogen) |
| Asphyxiation | Monitor methane leaks | Natural gas (odorless) |
Disclaimer:
The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
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