propanone
Học thuậtThân thiện
A chemist carefully pours propanone from a labeled glass bottle into a beaker.
Definition
Noun: 1. A colorless, volatile, flammable liquid ketone: This is the simplest form of ketone, with the chemical formula C₃H₆O. It is a highly effective organic solvent and a key starting material in chemical manufacturing.
Usage
- As a chemical compound: The term "propanone" is used primarily in scientific, industrial, and formal chemical contexts to refer to this specific organic compound.
- As a solvent or raw material: It describes the substance's functional role in processes such as dissolving other substances or serving as a precursor in synthesis.
Examples
- Noun:
- Propanone is commonly used to clean laboratory equipment.
- The production of certain plastics requires propanone as a feedstock.
- Due to its volatility, propanone evaporates quickly at room temperature.
Advanced Usage
- In chemical nomenclature: "Propanone" is the IUPAC (International Union of Pure and Applied Chemistry) name, which systematically describes its three-carbon chain with a ketone functional group on the second carbon.
Variants and Related Words
- Acetone (n): This is the most common synonym and trivial name for propanone, used in everyday, commercial, and many industrial contexts.
- Nail polish remover often contains acetone.
- Dimethyl ketone (n): An alternative systematic name, highlighting the two methyl groups attached to the carbonyl carbon.
Synonyms
- Acetone: The standard common name.
- Dimethyl ketone: A descriptive synonym based on its structure.
Notes on Meaning
While "propanone" and "acetone" refer to the identical chemical substance (C₃H₆O), the choice of term indicates context: - Propanone: Favored in formal chemical writing, education, and systematic discussions. - Acetone: Used in general conversation, commerce, and most practical applications (e.g., in hardware stores, pharmacies, or workshops).
A chemist carefully pours propanone from a labeled glass bottle into a beaker.
Noun
- the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics