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heptane
Heptane is a technical term used almost exclusively within chemistry and petrochemical engineering. It carries a neutral, scientific connotation and is typically encountered in discussions regarding organic synthesis or fuel combustion standards. Because it is a specific chemical compound, it is used as a precise identifier rather than a general descriptive term.
As a mass noun representing a chemical substance, heptane is uncountable. It does not have a plural form in standard usage; instead, quantities are specified using units of measurement or partitive phrases such as a volume of heptane or a sample of heptane.
Ý nghĩa
A colorless, volatile liquid hydrocarbon with the formula C7H16, consisting of a straight chain of seven carbon atoms, used primarily as a solvent and as a standard for measuring the octane rating of fuels.
The laboratory technician used heptane as a non-polar solvent for the extraction process.
Ví dụ
Heptane is a colorless liquid with a characteristic petroleum odor.
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Heptane evaporates quickly at room temperature due to its volatility.
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