MEKO is a clear, colorless combustible liquid. water and seek medical attention to avoid serious damage. MEKO is moderately toxic in the unlikely event of ingestion. Ingesting or breathing high concentrations may cause harmful, but reversible, effects on the blood (anemia) and inhalation can irritate nasal passages.
What is methyl ethyl ketoxime used for?
Product Summary. MEKO is primarily used as an anti-skinning agent for oil and latex paints and coatings. It 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.
What is oxime group?
Oxime: A functional group consisting of a hydroxyl group bonded to the nitrogen atom of an imine, or a molecule containing this functional group. An oxime derived from an aldehyde is called an aldoxime. An oxime derived from a ketone is called a ketoxime.
What is Meko free?
The new MEKO-free oxime silicone developed by our R&D specialists offers an all-in-one solution that covers virtually every sealing and bonding application, for both indoor or outdoor use and of course is much safer for users.
Where is butanone found?
2-Butanone occurs as a natural product. It is made by some trees and found in some fruits and vegetables in small amounts. It is also released to the air from car and truck exhausts. Methyl ethyl ketone is used as a solvent.
Are oximes acidic or basic?
Oximes behave as weak acids and bases. Aldoximes can peroxidize and explode during distillation. In the presence of even trace amounts of acid, ketoximes can undergo an exothermic acid-catalyzed rearrangement called the Beckmann rearrangement.
What is oxime formula?
An oxime is a chemical compound belonging to the imines, with the general formula RR’C=NOH, where R is an organic side-chain and R’ may be hydrogen, forming an aldoxime, or another organic group, forming a ketoxime. Oximes are usually generated by the reaction of hydroxylamine with aldehydes or ketones.
What is oxime cure?
Oxime, or neutral cure silicone, on the other hand, is non-corrosive and has excellent oil and temperature resistant properties. This type of silicone produces a neutral/non-acidic byproduct that does take longer to cure and has a longer tack-free time.
What is the formula of oxime?
An oxime is a chemical compound belonging to the imines, with the general formula RR’C=NOH, where R is an organic side-chain and R’ may be hydrogen, forming an aldoxime, or another organic group, forming a ketoxime.
Why is MEK banned?
On March 30, 1998, EPA denied the petition based on the conclusion that Volatile Organic Compounds (VOCs), such as MEK, contribute to the formation of tropospheric ozone which is known to cause significant adverse effects to human health and the environment.
