Butanone Oxime (MEKO), CAS 96-29-7, is 2-butanone oxime and is used as an anti-skinning additive in selected air-drying coating systems. It temporarily delays surface film formation during storage. Confirm assay, colour, water, acidity, compatibility with the intended resin and drier system, and current TDS, COA, and SDS.
Butanone Oxime (MEKO) CAS 96-29-7
- CAS: 96-29-7
- Synonyms: 2-Butanone oxime; Methyl ethyl ketone oxime; Methyl ethyl ketoxime; MEKO
- Einecs: 202-496-6
- Molecular Formula: C₄H₉NO
- Grade: Confirm assay, colour, water content, acidity, and compatibility with the intended resin and drier system
- Package: Confirm packaging compatible with the offered liquid, transport classification, and destination requirements
Product Description
Product name: Butanone Oxime (MEKO)
Recognized names: 2-Butanone oxime; methyl ethyl ketone oxime; methyl ethyl ketoxime; MEKO
Chemical identity: the oxime of 2-butanone
Typical physical form: clear, colourless liquid
Chemical formula: C₄H₉NO
Molar mass: 87.12 g/mol
CAS number: 96-29-7; EC number: 202-496-6
Melting point: -29.5 °C
Boiling point: 152-153 °C (101 kPa), 59-60 °C (2 kPa)
Water solubility: soluble in water (about 10%), alcohols and commonly used organic solvents
Relative density: approximately 0.92 at 20 °C
Procurement checks: assay, colour, water, acidity, and coating-system compatibility
Refractive index: 1.4410
Technical use: MEKO is used in selected air-drying coatings to delay surface film formation during storage. Performance and curing impact must be evaluated in the buyer’s actual resin, metal-drier system, addition level, and processing conditions. It is also used as an intermediate in selected oxime-functional silicon and isocyanate chemistry.
FAQ - Technical & Supply Chain
-
Q:
Are Butanone Oxime, Methyl Ethyl Ketoxime and MEKO the same substance?
A: Yes. These names identify 2-butanone oxime, CAS 96-29-7. It is not methyl isobutyl ketoxime or another oxime used in coatings. Purchase documents should state the full name and CAS number because the abbreviation MEKO alone does not define the offered material. -
Q:
Which specifications should be agreed for industrial MEKO?
A: Define oxime assay and method, water, color, acidity or alkalinity, density, residual methyl ethyl ketone, other oximes and nonvolatile residue. If it is used as an anti-skinning additive, also state the required inhibitor performance and concentration basis. Review the batch COA against the agreed test methods. -
Q:
What should be confirmed before bulk Butanone Oxime delivery?
A: Specify drum, IBC or tanker format, container compatibility, seals, previous cargo, net quantity and unloading connection. Confirm the current SDS, ventilation, ignition-control and exposure procedures before receipt. Storage temperature, headspace and maximum holding time should follow the documented grade and destination-site requirements.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
COA, TDS, SDS/MSDS and packing details are available on request.
Quotation
Send the CAS number, grade, quantity, packing preference and destination.
Sample & Supply
Support is available for samples, trial orders, bulk and repeat supply.
Storage & Shipping
Product-specific conditions are confirmed before order.
