Methyl ethyl ketone peroxide
Script error: No such module "Unsubst". <templatestyles src="Chembox/styles.css"/>
Template:Chembox image cellTemplate:Chembox AllOtherNamesTemplate:Chembox headerbarTemplate:Chembox IndexlistTemplate:Chembox JmolTemplate:Chembox ChEMBLTemplate:Chembox ECHATemplate:Chembox E numberTemplate:Chembox IUPHAR ligandTemplate:Chembox UNIITemplate:Chembox CompToxTemplate:Chembox headerbarTemplate:Chembox SolubilityInWaterTemplate:Chembox headerbarTemplate:Chembox headerbarTemplate:Chembox OHS (set)Template:Chembox GHS (set)Template:Chembox setHeaderTemplate:Chembox setDatarowTemplate:Chembox setDatarowTemplate:Chembox setDatarowTemplate:Chembox Datapage checkTemplate:Chembox Footer| Template:Longitem | Template:Unbulleted list |
| Template:Longitem | 1759757 |
| ChEBI | Template:Unbulleted list |
| ChemSpider | Template:Unbulleted list |
| DrugBank | Template:Unbulleted list |
| EC Number | Template:Unbulleted list |
| KEGG | Template:Unbulleted list |
| MeSH | Methyl+ethyl+ketone+peroxide |
| Template:Longitem | Template:Unbulleted list |
| RTECS number | Template:Unbulleted list |
| UN number | 3105 |
| Script error: No such module "collapsible list". | |
| Script error: No such module "collapsible list". | |
| Template:Longitem | Template:Chembox Elements/molecular formula |
| Molar mass | Template:Chem molar mass |
| Appearance | Colorless liquid |
| Density | 1.170 g cm−3 |
| Boiling point | Template:Chembox CalcTemperatures |
| Shock sensitivity | High |
| Detonation velocity | 5200 m/s |
| RE factor | 0.9 |
| NFPA 704 (fire diamond) | Template:NFPA 704 diamond |
| Flash point | Template:Chembox CalcTemperatures |
Template:Chembox Footer/trackingScript error: No such module "TemplatePar".Template:Short description
Methyl ethyl ketone peroxide (MEKP) is an organic peroxide with the formula [(CH3)(C2H5)C(O2H)]2O2. MEKP is a colorless oily liquid. It is widely used in vulcanization (crosslinking) of polymers.[2]
It is derived from the reaction of methyl ethyl ketone and hydrogen peroxide under acidic conditions. Several products result from this reaction including a cyclic dimer.[3] The linear dimer, the topic of this article, is the most prevalent.[4] and this is the form that is typically quoted in the commercially available material.[5]
Solutions of 30 to 40% MEKP are used in industry and by hobbyists as catalyst to initiate the crosslinking of unsaturated polyester resins used in fiberglass, and casting. For this application, MEKP often is dissolved in a phlegmatizer such as dimethyl phthalate, cyclohexane peroxide,Script error: No such module "Unsubst". or Template:Ill to reduce sensitivity to shock. Benzoyl peroxide can be used for the same purpose.Script error: No such module "Unsubst".
Safety
Whereas acetone peroxide is a white powder at STP, MEKP is slightly less sensitive to shock and temperature, and more stable in storage.
MEKP is a severe skin irritant and can cause progressive corrosive damage or blindness.
The volatile decomposition products of MEKP can contribute to the formation of vapor-phase explosions. Ensuring safe storage is important, and the maximum storage temperature should be limited to below 30 °C.[6]
Notes
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".
External links
- Template:Sister-inline
- CDC - NIOSH Pocket Guide to Chemical Hazards
- The Register: Mass murder in the skies: was the plot feasible?
- New York Times: Details Emerge in British Terror Case
- The Free Information Society: HMTD Synthesis Script error: No such module "webarchive".
- How MEKP cures Unsaturated Polyester Resin (video animation)