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2-Butanon-peroxid
mekp · METHYL ETHYL KETONE PEROXIDE · mekpo · Trigonox V328 · mepox · fr222 · ketonox · permekg

Identifikatoren & physikalische Daten
| CAS No. | 126-76-1 |
|---|---|
| Summenformel | C8H18O6 |
| Durchschnittliche Molmasse | 210,22 g/mol |
| Monoisotopische Masse | 210,11033829 g/mol |
| SMILES | CCC(C)(OO)OOC(C)(CC)OO |
| InChIKey | WFUGQJXVXHBTEM-UHFFFAOYSA-N |
| PubChem CID | 3672772 |
| ChEMBL | CHEMBL1562553 |
| EC No. | 215-661-2 |
| DTXSID | DTXSID1024671 |
| Lokaler Name | 2-Butanon-peroxid |
Chemische & physikalische Eigenschaften
| XLogP | 1,3 |
|---|---|
| Polarare Oberfläche (TPSA) | 77,4 |
| H-Brücken-Donoren | 2 |
| H-Brücken-Akzeptoren | 6 |
| Frei drehbare Bindungen | 7 |
| Schwere Atome | 14 |
| Formalladung | 0 |
| Komplexität | 146 |
| Geruch | Typical odor-resembles that of acetone.Fragrant, mint-like, moderately sharp odor |
| Dichte | 1.17 at 68 °F (USCG, 1999) - Denser than waterwill sinkRelative density (water = 1): 1.10-1.171.12(59 °F): 1.121.053 g/mL at 20 °C(lit.) |
| Color/Form | Colorless liquidColorless liquid [Note: Explosive decomposition occurs at 230 degrees F]. |
| Löslichkeit | 1 to 5 mg/mL at 72 °F (NTP, 1992)Partially miscible in watercompletely miscible with most organic solventsSolubility in water: very poorSoluble0.1-0.5 g/100 mL at 22 ºC |
| Flammpunkt | 180 °F (NTP, 1992)125-200 °F for 60% MEKP (open cup)(oc) 125-200 °F (60% MEKP)190 °F |
| Siedepunkt | 244 °F at 760 mmHg (Decomposes) (NIOSH, 2024)19 °C244 °F (decomposes)19 °C @760 [mm Hg]284 °C |
| Decomposition | >80 °C |
| Dampfdichte | Component 2 (83.33%: LACTOSE): 6.69 (NTP, 1992) (Relative to Air) |
| Dampfdruck | less than 0.01 mmHg at 68 °F Component 2 (83.33%: LACTOSE) (NTP, 1992)0.644-73.6Pa at 25℃ |
| Physical Description | Methyl ethyl ketone peroxide is a colorless liquid. Strong irritant to skin and tissue. Used as an initiator for room temperature cure of unsaturated polyester resins.CBIColorless liquid with a characteristic odor. [Note: Explosive decomposition occurs at 230 degrees F.][NIOSH]COLOURLESS LIQUID WITH PUNGENT ODOUR.Colorless liquid with a characteristic odor.Colorless liquid with a characteristic odor. [Note: Explosive decomposition occurs at 230 °F.] |
| Stability/Shelf Life | UNSTABLE AGENT WHICH LIKE HYDROGEN PEROXIDE RELEASES OXYGEN. |
| Selbstentzündungstemperatur | 1032 °F Component 2 (83.33%: LACTOSE) (NTP, 1992) |
| Schmelzpunkt | 110°C |
| Brechungsindex | n20/D 1.455 |
| Lagerbedingungen | 2-8°C |
| Aggregatzustand | Liquid |
| BRN | 1759757 |
| Stabilität | May react violently or explode if heated. Reacts violently with combustibles and organic material. Incompatible with flammables, strong oxidizing agents, strong reducing agents, promoters such as Cobalt compounds, brass, mild steel, aluminum alloys, natural and synthetic rubbers and chemical accelerators, heavy metals, acids and bases. |
| InChI | 1S/C8H18O6/c1-5-7(3,11-9)13-14-8(4,6-2)12-10/h9-10H,5-6H2,1-4H3 |
| InChIKey | WFUGQJXVXHBTEM-UHFFFAOYSA-N |
| SMILES | CCC(C)(OO)OOC(C)(CC)OO |
| LogP (Verteilungskoeffizient) | 0.3 at 25℃ |
| CAS Datenbank | 1338-23-4(CAS DataBase Reference) |
| EPA chemische Informationen | Methyl ethyl ketone peroxide (1338-23-4) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 7.4% (26 of 349) of reports.DangerH242 (90%): Heating may cause a fire [Danger Self-reactive substances and mixturesOrganic peroxides]H302+H332 (29.8%): Harmful if swallowed or if inhaled [Warning Acute toxicity, oralacute toxicity, inhalation]H302 (92.6%): Harmful if swallowed [Warning Acute toxicity, oral]H314 (91.4%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]H318 (77.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]H332 (30.4%): Harmful if inhaled [Warning Acute toxicity, inhalation]H335 (29.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P210, P234, P235, P240, P260, P261, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P321, P330, P363, P370+P378, P403, P403+P233, P405, P410, P411, P420, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 349 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Reported as not meeting GHS hazard criteria per 26 of 349 reports by companies.There are 11 notifications provided by 323 of 349 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. |
|---|---|
| Regulatorische Informationen | Chemical: 2-Butanone, peroxide2-Butanone, peroxide is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2-Butanone, peroxide are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Cease Manufacture Update: 06-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/24451Status: Active Update: 12-11-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/15761 |
Herstellung & Synthese
synthetische
2-Butanone peroxide is obtained by reacting methyl ethyl ketone with hydrogen peroxide (hydrogen peroxide) in the presence of sulfuric acid. After oxidation, neutralization, separation, dehydration, standing, filtration, and finally adding the solubilizing agent to obtain the finished product.