02469

2-Butanone

analytical standard

• Synonym(s): Ethyl methyl ketone, MEK, Methyl ethyl ketone
• Linear Formula: C₂H₅COCH₃
• CAS Number: 78-93-3
• Molecular Weight: 72.11
• Beilstein: 741880
• EC Number: 201-159-0
• MDL number: MFCD00011648
• PubChem Substance ID: 329747439
• NACRES: NA.24

Properties

• Quality Level: 100
• grade: analytical standard
• vapor density: 2.49 (vs air)
• vapor pressure: 71 mmHg ( 20 °C)
• assay: ≥99.9% (GC)
• autoignition temp.: 960 °F
• shelf life: limited shelf life, expiry date on the label
• expl. lim.: 10.1 %
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.379 (lit.); n20/D 1.379
• bp: 80 °C (lit.)
• mp: −87 °C (lit.)
• density: 0.805 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; environmental; flavors and fragrances; food and beverages; personal care
• format: neat
• SMILES string: CC(CC)=O
• InChI: 1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3
• InChI key: ZWEHNKRNPOVVGH-UHFFFAOYSA-N

Description

General description

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, textile, paints, pharmaceuticals and cosmetics.

Application

2-Butanone may have been used as reference standard in solid-phase microextraction gas-chromatography (SPME-GC) for quantification of volatile compounds from dry-cured hams.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H225 - H319 - H336
• Precautionary Statements: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Target Organs: Central nervous system
• Supplementary Hazards: EUH066
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point(F): 30.2 °F - closed cup
• Flash Point(C): -1 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves