Acetic anhydride ACS reagent, (1Kg)

SKU:
242845-1KG
  • $109.00

    • Description

    242845 Sigma-Aldrich

    Acetic anhydride

    ACS reagent, ≥98.0%

    • CAS Number 108-24-7

       

    • Linear Formula (CH3CO)2O

       

    • Molecular Weight 102.09

       

    •  Beilstein/REAXYS Number 385737

       

    •  EC Number 203-564-8

       

    •  MDL number MFCD00008705

       

    •  PubChem Substance ID 24854587

       

    •  NACRES NA.21

    Description

    General description

    Acetic anhydride is an organic solvent. On dissolution in water it undergoes solvolysis to afford acetic acid. It is widely employed for the acetylation of various alcohols. Wacher process (starting reagent + a ketene) and Knapsack process (starting reagent = acetaldehyde) have been reported for the industrial preparation of acetic anhydride.

    Application

    Acetic anhydride has been used as one of the reaction components in the preparation of:
    • 2-acetylamino-5-aminobenzenesulfonic acid[1]
    • 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA)[2]
    • 10-acetoxy-9-nitro-octadecanoic acid, allyl ester[3]
    • 9-nitro-oleic acid[3]
    It may be used for acetylation of anisole over HBEA zeolite in a batch reactor.[1]

    Packaging

    1, 6×1, 3 kg in glass bottle

    5, 100, 4×100 g in glass bottle

    Properties

    Related Categories Building Blocks, Carbonyl Compounds, Carboxylic Acid Anhydrides, Chemical Synthesis, Organic Building Blocks More...
    Quality Level   200
    grade   ACS reagent
    vapor density   3.5 (vs air)
    vapor pressure   10 mmHg ( 36 °C)
      4 mmHg ( 20 °C)
    assay   ≥98.0%
    autoignition temp.   629 °F
    expl. lim.   10.3 %
    impurities   MnO4- reducers, passes test
    evapn. residue   ≤0.003%
    refractive index   n20/D 1.390 (lit.)
    bp   138-140 °C (lit.)
    mp   −73 °C (lit.)
    solubility   H2O: slightly soluble
    density   1.08 g/mL (lit.)
    anion traces   chloride (Cl-): ≤5 ppm
      phosphate (PO43-): ≤0.001%
      sulfate (SO42-): ≤5 ppm
    cation traces   Fe: ≤5 ppm
      heavy metals: ≤2 ppm
    SMILES string   CC(=O)OC(C)=O
    InChI   1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
    InChI key   WFDIJRYMOXRFFG-UHFFFAOYSA-N