270695

2-Butanone

HPLC grade, suitable for HPLC, ≥99.5%

• 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
• UNSPSC Code: 12190000
• PubChem Substance ID: 329752964

Properties

• grade: HPLC grade
• vapor density: 2.49 (vs air)
• vapor pressure: 71 mmHg ( 20 °C)
• Assay: ≥99.5%
• autoignition temp.: 960 °F
• purified by: glass distillation
• expl. lim.: 10.1 %
• technique(s): HPLC: suitable
• impurities: <0.050% water
• evapn. residue: <0.0005%
• refractive index: n20/D 1.379 (lit.)
• bp: 80 °C (lit.); 80 °C
• mp: −87 °C (lit.)
• density: 0.805 g/mL at 25 °C (lit.)
• λ: H₂O reference
• UV absorption: λ: 330 nm A_max: 1.00; λ: 340 nm A_max: 0.10; λ: 350-400 nm A_max: 0.01
• SMILES string: CC(CC)=O
• InChI: 1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3
• InChI key: ZWEHNKRNPOVVGH-UHFFFAOYSA-N

Description

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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