CAS 96-29-7 2-Butanone oxime,C4H9NO,96-29-7 - Catalysts / Alfa Chemistry

Synonyms

methylethyl ketoxime; CTK0G7034; N-butan-2-ylidenehydroxylamine; 103055-EP2301918A1; butan-2-one oxime; ZINC242701543; 96-29-7; 2-Butanone, oxime; 2-Butanoneoxime; 2-Butanone, oxime, (E)-;

IUPAC Name

N-butan-2-ylidenehydroxylamine;

Molecular Weight

87.122g/mol

Molecular Formula

C4H9NO;

Canonical SMILES

CCC(=NO)C;

InChI

InChI=1S/C4H9NO/c1-3-4(2)5-6/h6H,3H2,1-2H3;

InChI Key

WHIVNJATOVLWBW-UHFFFAOYSA-N;

Melting Point

-21.1 ° F (NTP, 1992);-29.5°C;-29.5 deg C;

Density

0.9232 at 68 ° F (NTP, 1992);0.9232 g/cu cm at 20 deg C;

Solubility

greater than or equal to 100 mg/mL at 72° F (NTP, 1992);1.15 M;In water, 100,000 mg/L at 25 deg C;Soluble in chloroform; miscible with ethanol and ether;

Color Form

Liquid;Colorless liquid;

Complexity

58.6

Covalently-Bonded Unit Count

Decomposition

When heated to decomposition it emits toxic fumes of /oxides of nitrogen/.;

EC Number

202-496-6

Exact Mass

87.068g/mol

H-Bond Acceptor

H-Bond Donor

Heavy Atom Count

Monoisotopic Mass

87.068g/mol

Other Experimental

VP: 7.6 mm Hg at 50 deg C;Henry's Law constant = 1.22X10-6 atm-cu m/mol at 20 deg C (est);Hydroxyl radical reaction rate constant = 1.48X10-12 cu cm/molecule-sec at 25 deg C (est);

Rotatable Bond Count

Topological Polar Surface Area

32.6A^2

Undefined Bond Stereocenter Count

UN Number

1993

Vapor Pressure

22.6 mm Hg at 73 ° F ; 50.9 mm Hg at 118° F (NTP, 1992);1.06 mm Hg at 20 deg C;

Application

2-Butanone oxime, also known as methyl ethyl ketoxime, is a colorless oily liquid primarily used as an anti-skinning agent in alkyd resin coatings, thanks to its superior effectiveness compared to butyraldehyde oxime and cyclohexanone oxime. It serves as an antioxidant preventing skin formation during the storage and transport of a variety of oil-based, alkyd, and epoxy paints. Additionally, it plays a role as a silicon curing agent. In organic synthesis, 2-butanone oxime functions as both a reagent and solvent, notably in the production of ketoimine and 2,4-dipyridyl-1,3,5-triazapentadiene palladium(II) complexes, as well as a novel acetaldiimine cobalt complex. Despite its utilities, 2-butanone oxime is characterized as a clear liquid with a musty odor, and it is highly flammable, water-soluble, and sensitive to heat. Caution is required as it may react with oxidizing agents and strong acids, potentially forming explosive mixtures, particularly if acidic impurities are present.

January 31, 2025

Effective Anti-Skinning Agent for Alkyd Resins

I've been using Alfa Chemistry's 2-Butanone oxime in my laboratory for synthesizing ketoimine complexes. It's been excellent in preventing skin formation in alkyd resins, offering reliable results without complications.