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CAS NO:96-29-7
EC NO:202-496-6
Methyl ethyl ketoxime is the organic compound with the formula C2H5C(NOH)CH3. This colourless liquid is the oxime derivative of methyl ethyl ketone.
Methyl ethyl ketoxime, 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.
Methyl ethyl ketoxime is particularly used in alkyd paints.
Methyl ethyl ketoxime functions by binding the drying agents, metal salts that catalyze the oxidative crosslinking of drying oils. Once the paint is applied to a surface,
Methyl ethyl ketoxime evaporates, thereby allowing the drying process to proceed. Other antiskinning agents have been used, including phenolic antioxidants (E.G butylated hydroxytoluene), but these tend to yellow the paint. This oxime is also used in some types of RTV silicones.
Properties of Methyl ethyl ketoxime
Chemical formula C4H9NO
Appearance colourless liquid
Density 0.923 g/cm3
Melting point −15 °C (5 °F; 258 K)
Boiling point 152 °C (306 °F; 425 K)
Methyl ethyl ketoxime is a clear colorless liquid with a musty odor.
Uses of Methyl ethyl ketoxime
-Antiskinning agent in lacquers.
-2-Butanone oxime is widely used as a blocking agent in coatings such as isocyanate urethane coatings for wire and in magnetic tape coatings and resins
-Catalyst, oxygen scavenger in steam generation, extraction of silver
-Used primarily as an antiskinning agent in alkyd coating resins to prevent formation of a solid or gelatinous skin in the container.
Industry Uses of Methyl ethyl ketoxime
Adhesives and sealant chemicals
Paint additives and coating additives not described by other categories
Solvents (which become part of product formulation or mixture)
Surface active agents
Consumer Uses of Methyl ethyl ketoxime
Adhesives and sealants
Paints and coatings
Industry Processing Sectors of Methyl ethyl ketoxime
Adhesive manufacturing
All other basic organic chemical manufacturing
Construction
Paint and coating manufacturing
Application of Methyl ethyl ketoxime
Methyl ethyl ketoxime was employed as reagent and solvent in the syntheses of ketoimine and 2,4-dipyridyl-1,3,5-triazapentadiene palladium(II) complexes.
Methylethyl ketone oxime was also used in the synthesis of novel acetaldiimine cobalt complex, [CoI2{((CH3CH2)(CH3)C=NO)2C(CH3)2}].
Methyl ethyl ketoxime is primarily used as an anti-skinning agent for oil and latex paints and coatings.
Methyl ethyl ketoxime is also widely used as an isocyanate-blocking agent in priming automobiles (electrodeposition coating) for paint jobs and as a curing agent for silicon rubber due to its outstanding water and heat resistance.
Methylethyl ketone oxime is a clear, colorless combustible liquid.
Methyl ethyl ketoxime is an essential additive for the paint, varnish and printing ink industries.
Methyl ethyl ketoxime is an ideal anti-skinning agent.
Description
Colorless liquid with a musty odor; [CAMEO]
Sources/Uses
Used as an anti-skinning agent in alkyd paints; Also used as a blocking agent (urethane polymers) and a corrosion inhibitor (boilers); [AIHA]
About this substance
Helpful information
Methyl ethyl ketoxime is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.
Methyl ethyl ketoxime is used by consumers, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Consumer Uses
Methyl ethyl ketoxime is used in the following products: coating products.
Other release to the environment of Methyl ethyl ketoxime is likely to occur from: indoor use as processing aid and outdoor use as processing aid.
Article service life
ECHA has no public registered data on the routes by which Methyl ethyl ketoxime is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.
Widespread uses by professional workers
Methyl ethyl ketoxime is used in the following products: coating products.
ECHA has no public registered data on the types of manufacture using Methyl ethyl ketoxime. Other release to the environment of Methyl ethyl ketoxime is likely to occur from: indoor use as processing aid and outdoor use as processing aid.
Formulation or re-packing
Methyl ethyl ketoxime is used in the following products: coating products and polymers.
Release to the environment of Methyl ethyl ketoxime can occur from industrial use: formulation of mixtures.
Uses at industrial sites
Methyl ethyl ketoxime is used in the following products: coating products.
Methyl ethyl ketoxime has an industrial use resulting in manufacture of another substance (use of intermediates).
Methyl ethyl ketoxime is used in the following areas: formulation of mixtures and/or re-packaging.
Methyl ethyl ketoxime is used for the manufacture of: chemicals.
Release to the environment of Methyl ethyl ketoxime can occur from industrial use: in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates), manufacturing of the substance, formulation of mixtures and as processing aid.
Manufacture
Release to the environment of Methyl ethyl ketoxime can occur from industrial use: manufacturing of the substance.
Methyl ethyl ketoxime is a high-efficiency anti-skinning agent used for air-drying paints, inks and coatings.
Methyl ethyl ketoxime is also used to improve the shelf life of silicone adhesives and sealants, and the functionality of polyurethane coatings.
Methyl ethyl ketoxime is produced to meet the low moisture and high assay standards that formulators require.
Methyl ethyl ketoxime (MEKO), also known as 2-butanone oxime or MEK-oxime, is an
industrial antioxidant used as an antiskinning agent in paints.
Methyl ethyl ketoxime is also used as a blocking agent for urethane polymers, as a corrosion inhibitor in industrial boilers, and can be found in some adhesives, caulking products and repair products that may be used by consumers.
Methyl ethyl ketoxime synonymous with 2-Butanone Oxime, is a clear, colorless liquid that is 99.5% pure.
Methyl ethyl ketoxime is primarily used as an anti-skinning agent in paint.
Methyl ethyl ketoxime has additional uses in the production of silicone adhesive products.
Reactivity Profile:
Methyl ethyl ketoxime is sensitive to heat.
Has exploded at least twice when heated in the presence of acidic impurities.
Reacts with oxidizing agents.
Mixtures with strong acids may explode.
Reacts with sulfuric acid to form an explosive product.
APPLICATIONS
Adhesives and sealant chemicals
Paint additives and coating additives not described by other categories
Solvents (which become part of product formulation or mixture)
GROUPS / USES
Adhesives & Sealants, Drying Agent, Plastic, Resin & Rubber, Protective Coatings, Coatings, Crosslinkers, Nutritionals, Paints, Resins
Methyl ethyl ketoxime is used as urethane blocking agent; it blocks urethane in coating applications which include power coatings, automotive coatings, coatings on plastic, textile, and general industrial metals.
Methyl ethyl ketoxime is used as anti-skinning agent in paints and is used in water treatment.
Methyl ethyl ketoxime is also used to produce oxime derivatives for other industrial applications.
Methyl ethyl ketoxime is also a useful intermediates for the preparation of O-alkyd and O-acyl oximes, nitrones, amides, carbamates, O-silyl compounds and heterocyclic systems.
Methyl ethyl ketoxime is a colourless, volatile, highly flammable liquid with a fruity odour
Methyl ethyl ketoxime is widely used as a solvent for protective coatings, paints, plastics, adhesives, printing
inks and pesticides
Methyl ethyl ketoxime may be released from industry but it is quickly broken down in the environment
Methyl ethyl ketoxime is produced naturally at low levels by many living things
Application: Methyl ethyl ketoxime (MEKO) is an essential chemical used as an anti-skinning agent in paints and lacquers, as a blocking-agent for isocyanate in polyurethanes, and in the manufacture of oxime silanes (that are used as crosslinkers for silicone sealants).
Acts as a curing agent. Offers outstanding water resistance and heat resistance. Recommended for silicone based rubbers.
Chemical Properties
Colorless oily liquid. Melting point-29.5 ℃. Boiling point 152-153 ℃, 59-60 ℃ (2kPa), the relative density is 0.9232 (20/4 ℃), and refractive index 1.4410. With alcohol, ether immiscibility, dissolved in 10 parts of water.
Uses of Methyl ethyl ketoxime
Mainly used inalkyd paintanti-skinningagentand siliconcuring agent.
Methyl ethyl ketoxime is used to prevent the use of the crust.
Methyl ethyl ketoxime is better than butyraldehydeoxime, cyclohexanone oxime in effect.
Used in organic synthesis
For a variety of oil-based paint, alkyd paint, epoxy paint, such as esters during storage and transportation of anti-skinning process, also used as a curing agent silicon.
Methyl ethyl ketoxime is the organic compound with the formula C2H5C(NOH)CH3. This colourless liquid is the oxime derivative of methyl ethyl ketone.
- Methyl ethyl ketoxime is a Urethane blocking agent for coating applications.
- Methyl Ethyl Ketoxime can be used as Anti-skinning agent in paints (Alkyd based systems)
- Methyl ethyl ketoxime is an Oxygen scavenger in boiler water treatment.
- Methyl ethyl ketoxime can be used to produce oxime derivatives for other industrial applications
Methyl ethyl ketoxime is the organic compound with the formula C₂H₅CCH₃. This colourless liquid is the oxime derivative of methyl ethyl ketone.
Methyl ethyl ketoxime, 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.
1. Methyl ethyl ketoxime is an oil-based coating antioxidant used in various oil-based paints, such as alkyd paint, epoxy ester paint and other anti-skinning treatment during storage, and has anti-knot in alkyd resin coating. The role of skin agent and stable viscosity; recommended addition amount: 0.1-0.3%, used in offset printing inks and other industries.
2. Methyl ethyl ketoxime can be used to synthesize silicone cross-linking agent and curing agent, mainly used for one-component room temperature vulcanized silicone rubber products and isocyanate sealing agent.
3. Antioxidants and corrosion inhibitors that can be used in industrial boilers or water treatment systems.
4. In addition to bismuth and magnesium removal in pharmaceutical intermediates.
5. Methyl ethyl ketoxime of solid high-purity hydroxylamine sulfate, hydroxylamine hydrochloride and other products.
IUPAC names
(2E)-butan-2-one oxime
(NE)-N-butan-2-ylidenehydroxylamine
(NZ)-N-butan-2-ylidenehydroxylamine
2-Butanone Oxime
2-Butanone oxime
2-butanone oxime
2-Butanone oxime
2-butanone oxime; ethyl methyl ketoxime; ethyl methyl ketone oxime
2-butanone oxime; ethyl methyl ketoxime;ethyl methyl ketone oxime
2-Butanone, oxime
2-butanone, oxime
butan-2-one oxime
butan-2-one-oxime
Butanone oxime
butanone oxime
Butanone oxime
Butanonoxim (Methyl ethyl ketoxim)
ethyl methyl ketone oxime
ethyl methyl ketoxime
ketoxime
METHYL ETHYL KETONE OXIME
Methyl Ethyl Ketoxime
Methyl ethyl ketoxime
Methylethyl ketoxime
N-butan-2-ylidenehydroxylamine
tbc
SYNONYMS:
(2Z)-butan-2-one oxime
(2Z)-N-Hydroxy-2-butanimin [German] [ACD/IUPAC Name]
(2Z)-N-Hydroxy-2-butanimine [ACD/IUPAC Name]
(2Z)-N-Hydroxy-2-butanimine [French] [ACD/IUPAC Name]
(2Z)-N-Hydroxybutan-2-imine
2-Butanone, oxime, (2Z)- [ACD/Index Name]
96-29-7 [RN]
Methyl ethyl ketoxime
(NZ)-N-butan-2-ylidenehydroxylamine
10341-59-0 [RN]
105287-28-3 [RN]
2-BUTANONE OXIME
2-BUTANONE, OXIME, (Z)-
2-Butanoneoxime
4-01-00-03250 [Beilstein]
4-01-00-03250 (Beilstein Handbook Reference) [Beilstein]
Butanone oxime
EINECS 202-496-6
Ethyl methyl ketone oxime
ETHYL METHYL KETOXIME
Ethyl-methylketonoxim [Czech]
Ethyl-methylketonoxim [Czech]
MEK-oxime
Methyl ethyl ketone oxime
MFCD00069011
