Methylethyl ketone oxime


Methylethyl ketone oxime
Methylethyl ketone oxime
Properties
Molecular formula C4H9NO
Appearance colourless liquid
Density 0.923 g/cm3
Melting point

-15 °C

Boiling point

152 °C

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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Methylethyl ketone oxime is the organic compound with the formula C2H5C(NOH)CH3. This colourless liquid is the oxime derivative of methyl ethyl ketone. MEKO, as it is called in the paint industry, is used to suppress "skinning" of paints: the formation of a skin on paint before it is used. MEKO functions by binding the drying agents, metal salts that catalyze the oxidative crosslinking of drying oils. Once the paint is applied to a surface, MEKO evaporates, thereby allowing the drying process to proceed. Other antiskinning agents have been used, including phenol-based antioxidants, but these tend to yellow the paint.[1]

Reference

  1. ^ J. Bielman "Antiskinning Agents" in "Additives for Coatings" J. H. Bielman, Ed. Wiley-VCH, 2000, Weinheim. ISBN 3527297855.

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