n-Butane R600
n-Butane is one of the two isomers of butane (the other being isobutane) and belongs to the straight-chain alkanes. Below is a summary of its core information:
1.Basic Information
English Name: n-Butane
Chemical Formula: C₄H₁₀
CAS No.: 106-97-8
UN Number: UN 1011
Hazard Class: Class 2.1
Molecular Weight: 58.12
Boiling Point: -0.5℃
Appearance: Colorless, flammable gas; turns into colorless liquid under pressure
2.n-Butane vs. Isobutane
Although they share the same molecular formula, their different structures lead to subtle differences in properties:
n-Butane: Straight-chain structure, higher boiling point (-0.5°C), and slightly weaker vaporization capability in cold weather.
Isobutane: Branched-chain structure, lower boiling point (-11.7°C), and better vaporization performance in low-temperature environments. Therefore, lighters or gas canisters used in winter typically contain a higher proportion of isobutane.
💡 Practical Tips
Storage: Keep away from heat sources and open flames. Store in a cool, well-ventilated place, avoiding direct sunlight.
Leak Handling: If you smell a petroleum/natural gas-like odor, absolutely do not turn electrical appliances on or off, make phone calls, or use open flames. Immediately close the valve, open windows and doors for ventilation, and evacuate personnel to a safe outdoor area.
Disposal: Do not throw partially empty gas canisters directly into the trash or fire. Dispose of them according to local regulations for hazardous waste or recyclables.
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