2-Butanon-peroxid Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE FLüSSIGKEIT MIT STECHENDEM GERUCH.
CHEMISCHE GEFAHREN
Erhitzen kann zu sehr heftiger Verbrennung oder Explosion führen. Beim Verbrennen Bildung giftiger und ?tzender Gase. Starkes Oxidationsmittel. Reagiert sehr heftig mit brennbaren und reduzierenden Stoffen, Aminen, Metallen, starken S?uren und starken Basen unter Feuer- und Explosionsgefahr.
ARBEITSPLATZGRENZWERTE
TLV: 0.2 ppm (als STEL, ceiling) (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation und durch Verschlucken.
INHALATIONSGEFAHREN
Eine gesundheitssch?dliche Partikelkonzentration in der Luft kann beim Dispergieren schnell erreicht werden.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz ver?tzt die Augen, die Haut und die Atemwege. ?tzend beim Verschlucken.
LECKAGE
Chemikalienschutzanzug mit umgebungsluftunabh?ngigem Atemschutzger?t. Ausgelaufene Flüssigkeit m?glichst in abdichtbaren Kunststoffbeh?ltern sammeln. NICHT mit S?gemehl oder anderen brennbaren Absorptionsmitteln binden.
R-S?tze Betriebsanweisung:
R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
R22:Gesundheitssch?dlich beim Verschlucken.
R38:Reizt die Haut.
R41:Gefahr ernster Augensch?den.
R43:Sensibilisierung durch Hautkontakt m?glich.
R34:Verursacht Ver?tzungen.
R7:Kann Brand verursachen.
R35:Verursacht schwere Ver?tzungen.
R23:Giftig beim Einatmen.
R9:Explosionsgefahr bei Mischung mit brennbaren Stoffen.
S-S?tze Betriebsanweisung:
S17:Von brennbaren Stoffen fernhalten.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S14:Von . . . fernhalten (inkompatible Substanzen sind vom Hersteller anzugeben).
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S3/7:Beh?lter dicht geschlossen halten und an einem kühlen Ort aufbewahren.
S47:Nicht bei Temperaturen über . . . °C aufbewahren (vom Hersteller anzugeben).
S7:Beh?lter dicht geschlossen halten.
Chemische Eigenschaften
Methyl ethyl ketone peroxide (2-Butanone peroxide) 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.
Application
2-Butanone peroxide can be used as the following reactants:
Studies of the adiabatic runaway reaction of Me Et Ketone peroxide.
Quantitation of metal ions in archaeological glass via abrasive stripping square-wave voltammetry.
Imaging of hydrogen peroxide and hydrogen peroxide-scavenging substances by photon emission.
Synthesis of oligonucleotides via phosphoramidite method.
Oxidation of nucleoside phosphites into phosphates.
Comparing the relative effectiveness of human plasma glutathione peroxidase as a catalyst for reduction of hydroperoxidases.
2-Butanone peroxide can also be used as a direct electrochemical catalyst analyte for immobilized Hb in ethanol-water mixtures.
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.
Allgemeine Beschreibung
Colorless liquid. Strong irritant to skin and tissue. Used as an initiator for room temperature cure of unsaturated polyester resins.
Reaktivit?t anzeigen
2-Butanone peroxide is a strong oxidizing agent. May be ignited by heat, sparks or flame and undergoes self-accelerating decomposition. Explosive decomposition occurs at 230° F. Sensitive to sunlight. Ignition and/or explosion may occur if mixed with readily oxidizable materials. Reacts with combustible materials such as wood, cloth or organic materials, with chlorine, and with metals (iron, copper and their alloys and aluminum and its alloys). Incompatible with strong oxidizing agents, strong reducing agents, natural rubbers, synthetic rubbers and chemical accelerators. Incompatible with heavy metals, acids and bases.
Hazard
Fire risk in contact with organic materials.Strong irritant to skin and tissue. Liver and kidneydamage.
Health Hazard
Extremely destructive to tissue of the mucous membranes, upper respiratory tract, eyes, and skin. Symptoms of exposure include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
Brandgefahr
Methyl Ethyl Ketone Peroxide (2-Butanone peroxide) is a combustible and reactive liquid that may burn slowly at first, and after heating can burn violently and explosively.
Sicherheitsprofil
Poison by
intraperitoneal route. Moderately toxic by
ingestion and inhalation. Human systemic
effects by ingestion: changes in structure or
function of esophagus, nausea or vomiting,
other gastrointestinal effects. A moderate
skin and eye irritant. Questionable
carcinogen with experimental tumorigenic
data. A shock-sensitive explosive. When
heated to decomposition it emits acrid
smoke and irritating fumes.
Lager
MEK peroxide is diluted in a solvent or dispersedin a plasticizer, which greatly reducesits shock sensitivity. It is stored in a refrigeratorin a well-ventilated area and wellseparated from other chemicals. Peroxidewith an active oxygen content >9% maynot be shipped. Diluted material is shippedin metal drums with polyethylene liners orpolyethylene-lined paper bags in woodenboxes.
Versand/Shipping
UN3105 Organic peroxide type D, liquid,
Hazard Class: 5.2; Labels: 5.2-Organic peroxide, Technical
Name Required.
Inkompatibilit?ten
Forms explosive mixture with air (flash
point varies). MEKP (2-Butanone peroxide) may exist in several different structures; decomposition temperatures may vary. Pure substance is shock-sensitive. Explosive decomposition above
176F/80C (also reported @ 230F/110C). Keep away
from sources of ignition, heat, sunlight. A strong oxidizer.
Violent reaction with strong acids; strong bases; reducing
agents; combustible substances, organic materials; chemical
accelerants; oxides of heavy metals; salts, trace contaminants; amines. May accumulate static electrical charges,
and cause ignition of its vapors. Commercial product is
diluted with 40% dimethyl phthalate, cyclohexane peroxide; or diallyl phthalate to reduce sensitivity to shock.
Waste disposal
Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant
(≥100 kg/mo) must conform to EPA regulations governing
storage, transportation, treatment, and waste disposal.
MEKP may be destroyed by adding 20% NaOH solution
slowly in a quantity about 10 times the weight of MEKP.
Incineration is recommended if NaOH treatment is not
used
2-Butanon-peroxid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
