Butanone, also known as methyl ethyl ketone (MEK) or ethyl methyl ketone, [a] is an organic compound with the formula CH 3 C (O)CH 2 CH 3. This colorless liquid ketone has a sharp, sweet odor reminiscent of acetone. It is produced industrially on a large scale, but occurs in nature only in trace amounts. [7] .

2025年2月27日 · 2-Butanone (CAS 78-93-3) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.

2024年11月6日 · Colorless liquid with a moderately sharp, fragrant, mint- or acetone-like odor. SKC no longer makes the Anasorb CMS media listed in Method 1004. In order to obtain defensible and quantitative results for MEK, sampling must be done with the passive sampler.

IUPAC Standard InChIKey: ZWEHNKRNPOVVGH-UHFFFAOYSA-N Copy CAS Registry Number: 78-93-3 Chemical structure: This structure is also available as a 2d Mol file or as a ...

2-Butanone is a manufactured chemical but it is also present in the environment from natural sources. It is a colorless liquid with a sharp, sweet odor. It is also known as methyl ethyl ketone (MEK). 2-Butanone is produced in large quantities.

2-Butanone also known as methyl ethyl ketone is a colorless fairly volatile liquid with a pleasant pungent odor. It is primarily used as a solvent, for making other chemicals, and for production of wax from petroleum. It is derived from refluxing methyl acetoacetate and dilute sulphuric acid. It finds application in manufacturing plastic ...

2-Butanone. C2H5COCH3. Synonyms: Ethyl methyl ketone, MEK, Methyl ethyl ketone, 2-Butanone. CAS 78-93-3. Molecular Weight 72.11. Browse 2-Butanone and related products at MilliporeSigma.

Quantity Value Units Method Reference Comment; Δ r H°: 1536. ± 12. kJ/mol: G+TS: Chyall, Brickhouse, et al., 1994: gas phase; Primary and secondary sites are of equal acidity by equilibration.

The effects of 2-butanone in humans include neurological symptoms (headache, fatigue, feeling of intoxication) and mucous membrane irritation of the eyes, nose, and throat. Effects observed in animals include death, irritation of respiratory tissue, eyes, and skin, liver congestion, kidney congestion, corneal opacity, narcosis and ...

Human and laboratory animal studies, primarily by the inhalation route, suggest potential associations between 2-butanone exposure and the following health outcomes: Neurological endpoint: Symptoms of neurotoxicity were reported in volunteers and neurobehavioral effects have been observed in laboratory animals.