Methyl Ethyl Ketone

  • Identifiers

    CAS number
    78-93-3

    Molecular formula
    C4H8O

    SMILES
    CCC(=O)C
    O

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Retention indicies (RI)

    • DB5: 592.0
    • Carbowax: 899.8

  • Odor profile

    ethereal 83.58%
    fruity 76.55%
    sweet 66.98%
    solvent 60.38%
    ketonic 60.21%
    rummy 48.79%
    pungent 44.22%
    fermented 44.12%
    sharp 38.68%
    alcoholic 38.14%

    Scent© AI

  • Properties

    XLogP3-AA
    0.3 Well soluble in MMB, TEC, IAA

    Molecular weight
    72.11 g/mol

    Melting points

    • -123.3 °F (NTP, 1992)
    • -86.67 °C
    • -86.6 °C
    • -86 °C
    • -123 °F

    Boiling points

    • 175.3 °F at 760 mmHg (NTP, 1992)
    • 79.59 °C
    • 78.60 to 80.00 °C. @ 760.00 mm Hg
    • 80 °C
    • 175 °F

    Flash points

    • 26 °F (NTP, 1992)
    • 26 °F
    • 16 °F (-9 °C) (Closed cup)
    • -9 °C (closed cup)
    • -9 °C c.c.
    • 16 °F

    Solubilities

    • greater than or equal to 100 mg/mL at 66 °F (NTP, 1992)
    • Constant boiling mixture with water, BP 73.4 °C, contains 88.7% methyl ethyl ketone (MEK); Solubility of water in MEK is 12.5% at 25 °C
    • In water, 2.23X10+5 mg/L at 25 °C
    • In water, 3.13X10+5 mg/L at 10 °C; 2.11X10+5 mg/L at 25 °C; 1.6X10+5 mg/L at 90 °C
    • Soluble in benzene, alcohol, and ether; miscible with oils
    • Miscible with ethanol, ether, acetone, benzene, chloroform
    • 223.0 mg/mL
    • Solubility in water, g/100ml at 20 °C: 29 (good)
    • miscible with alcohol, ether, most fixed oils; 1 ml in 4 ml water
    • 28%

  • Synonyms

    • 2-Butanone
    • METHYL ETHYL KETONE
    • Butan-2-one
    • Butanone
    • 78-93-3
    • Ethyl methyl ketone
    • Methylethyl ketone
    • Meetco
    • Methyl acetone
    • Methylethylketone
NaN -Infinity

Botanical

Name CAS Botanical Proportion
Truffle, black (Perigord) Tuber melanosporum, fam. Ascomycetae 2.5%
Apple flower Malus arnoldiana (Rehd) Sarg. var. Redgold, fam. Rosaceae 0.01%
Marigold pot 1 70892-20-5 Calendula officinalis L. (Pot Marigold), fam. Asteraceae (Compositae) 0.01%
Marigold pot 2 70892-20-5 Calendula officinalis L. (Pot Marigold), fam. Asteraceae (Compositae) 0.2%
Ambrette seed (China) 8015-62-1 Hibiscus abelmoschus L. (Abelmoschus moschatus Moench), fam. Malvaceae 0.02%
Santolina chamaecyparisus (Egypt) 84961-58-0 Santolina chamaecyparisus L., fam. Asteraceae (Compositae) 0.01%
Thyme 5 8007-46-3 Thymus vulgaris L., fam. Lamiaceae (Labiatae) 0.01%
Ageratum conyzoides (Ghana) 85480-32-6 Ageratum conyzoides L., fam. Asteraceae (Compositae) 0.01%
Truffle, white (Italy) Tuber magnatum Pico, fam. Ascomycetae 5.0%
Cyphomandra betacea fruit Cyphomandra betacea Sendtn., fam. Solanaceae (tree tomato, tamarillo) 0.01%
Pineapple pulp Ananas comosus (L.) Merr., fam. Bromeliaceae 0.81%