User:Mutinus/MEKP
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| Names | |
|---|---|
| IUPAC names
butane-2,2-diyl dihydroperoxide (monomer) 2-hydroperoxy-2-((2-hydroperoxybutan-2-yl)peroxy)butane (dimer) | |
| Other names
Methyl ethyl ketone peroxide, MEKP, MEK Peroxide | |
| Identifiers | |
3D model (JSmol) |
|
| UNII | |
| |
| Properties | |
| C4H10O4 (monomer) C8H18O6 (dimer) | |
| Molar mass | 122.12 g mol-1 (monomer) 210.22 g mol-1 (dimer) |
| Appearance | Colorless, high-viscosity liquid |
| Density | 1.170 g/mL |
| Melting point | -8 °C |
| Boiling point | 110-117.8 °C (decomposes) |
| Soluble | |
| Vapor pressure | <0.01 mmHg at 20 °C |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
Strong Oxidizer, Explosive, Toxic |
| NFPA 704 (fire diamond) | |
| Flash point | 82 °C |
| Explosive data | |
| Shock sensitivity | High |
| Related compounds | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Methyl ethyl ketone peroxide (MEKP) is an organic peroxide similar to acetone peroxide. MEKP is a colorless, oily liquid with an odor similar to that of acetone. MEKP is a strong oxidizer and a severe irritant. Pure MEKP is shock sensitive, and is therefore diluted for commercial and industrial use as a catalyst for the room temperature polymerization of polyester resins.
Commercially available MEKP is a mixture of two different forms: the monomer, C4H10O4, and the dimer, C8H18O6.[1] It may also exist as a cyclic dimer (with the formula C8H16O4), as well as higher cyclic oligomers.[2]
Production
[edit]Methyl ethyl ketone peroxide is produced by the reaction between butanone and hydrogen peroxide. Temperature and the use of a catalyst such as nitric, sulfuric, or hydrochloric acid will affect the resulting yield of each oligomer.[1][3]
To prevent detonation, MEKP is diluted