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Butanone, also known as methyl ethyl ketone (MEK) or ethyl methyl ketone, [a] is an organic compound with the formula CH 3 C(O)CH 2 CH 3. This colorless liquid ketone has a sharp, sweet odor reminiscent of acetone. It is produced industrially on a large scale, but occurs in nature only in trace amounts. [7]
Methyl ethyl ketone peroxide, benzoyl peroxide and to a smaller degree acetone peroxide are used as initiators for radical polymerization of some thermosets, e.g. unsaturated polyester and vinyl ester resins, often encountered when making fiberglass or carbon fiber composites (CFRP), with examples including boats, RV units, bath tubs, pools ...
Methyl ethyl ketone peroxide (MEKP) is an organic peroxide with the formula [(CH 3)(C 2 H 5)C(O 2 H)] 2 O 2. MEKP is a colorless oily liquid. It is widely used in vulcanization (crosslinking) of polymers. [3] It is derived from the reaction of methyl ethyl ketone and hydrogen peroxide under acidic conditions.
Methyl ethyl ketone peroxide (used in the manufacturing of polyester) Reactives Benzoyl peroxide (used as a bleaching agent) Oxidizers: Potassium permanganate (used as an industrial disinfectant and sterilizer) Pyrophorics: White phosphorus: Carcinogens: Benzene (feed-stock for many petrochemical processes) Reproductive toxins: Lead, dioxins ...
Methyl isobutyl ketone 0.798 Isobutyl alcohol 0.802 1-Propanol 0.803 Methyl ethyl ketone 0.805 2-Butanol 0.808 Isoamyl alcohol 0.809 1-Butanol 0.810 Diethyl ketone 0.814 1-Octanol 0.826 p-Xylene 0.861 m-Xylene 0.864 Toluene 0.867 Dimethoxyethane 0.868 Benzene 0.879 Butyl acetate 0.882 1-Chlorobutane 0.886 Tetrahydrofuran 0.889 Ethyl acetate 0.895
DMC is still safer than acetone, methyl acetate and methyl ethyl ketone from a flammability point of view. The National Center for Sustainable Transportation recommends limiting exposure by inhalation to less than 100 ppm over an 8-hour work day, which is similar to that of a number of common industrial solvents (toluene, methyl ethyl ketone). [20]
In organic chemistry, a ketone / ˈ k iː t oʊ n / is an organic compound with the structure R−C(=O)−R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group −C(=O)− (a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' is methyl), with the formula (CH 3) 2 CO ...
Due to its classification as VOC exempt, dimethyl carbonate has grown in popularity and applications as a replacement for methyl ethyl ketone (MEK) and other solvents. tert-Butyl acetate is used as a solvent in the production of lacquers, enamels, inks, adhesives, thinners and industrial cleaners. [10] [11] It also gained EPA VOC exempt status.