n-Butane R600

product-284-154

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 Physical and Chemical Properties

Chemical Formula: C4H10C4H10

Appearance and Odor: It is a colorless gas at room temperature and pressure, with a faint, petroleum- or natural gas-like odor (asphyxiating at high concentrations).

Phase Transitions: Boiling point is approximately -0.5°C, and the melting point is -138°C. This means it is a gas at room temperature but can be easily liquefied with slight compression or cooling (e.g., in a refrigerator), making it highly compressible for liquid storage.

Solubility: Insoluble in water, but highly soluble in organic solvents like ethanol and diethyl ether.

Density: Its gas density is greater than air (about twice as dense), so in the event of a leak, it tends to accumulate in low-lying areas, sewers, or near the ground.

Differences in Ratios and Effects of Blending Cyclopentane with n-Pentane and Isopentane

2. Main Applications

Fuel: Its most common use is as lighter fluid, in portable camping gas canisters (usually mixed with propane), and as a component in household Liquefied Petroleum Gas (LPG).

Chemical Feedstock: Used in the production of synthetic rubbers (e.g., polybutadiene rubber), plastics, solvents, and maleic anhydride via oxidation.

Aerosol Propellant: Taking advantage of its easy liquefaction, it is used as a propellant gas in hairsprays, insecticides, and cleaning agents.

Extraction Solvent: In the food industry, it is sometimes used to extract active ingredients from vegetable oils or plants (with strict control over residual levels).

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