Dilauroylperoxid Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
WEISSES PULVER ODER FESTSTOFF IN VERSCHIEDENEN FORMEN.
CHEMISCHE GEFAHREN
Erhitzen kann zu sehr heftiger Verbrennung oder Explosion führen. Starkes Oxidationsmittel. Reagiert mit brennbaren und reduzierenden Stoffen unter Feuer- und Explosionsgefahr.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols.
INHALATIONSGEFAHREN
Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch schnell erreicht werden.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Das Aerosol reizt die Augen, die Haut und die Atemwege.
LECKAGE
Gefahrenbereich verlassen bei großen Mengen verschütteten Materials! Fachmann zu Rate ziehen! Zündquellen entfernen. Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen. NICHT mit Sägemehl oder anderen brennbaren Absorptionsmitteln binden. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.
R-Sätze Betriebsanweisung:
R7:Kann Brand verursachen.
S-Sätze Betriebsanweisung:
S14:Von . . . fernhalten (inkompatible Substanzen sind vom Hersteller anzugeben).
S3/7:Behälter dicht geschlossen halten und an einem kühlen Ort aufbewahren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
Dilauroyl peroxide (Lauroyl peroxide) is a tasteless, coarse, white powder.
Dilauroyl peroxide is not a deflagration hazard. However,
it has been judged an intermediate fire hazard by Noller
et al. When all the physical tests available for this
peroxide are evaluated collectively, it actually ranks as a
low physical hazard .
Verwenden
Dilauroyl peroxide is produced by reaction of lauroyl chloride with sodium
peroxide. Its major use is as an initiator for vinyl chloride. It is
used as a polymerization agent in the plastics industry and as a
curing agent for rubber. It has also been used as a burnout agent
for acetate yarns. The pharmaceutical industry uses it in topical
creams in combination with antibiotics for acne treatment .
synthetische
Dilauroyl peroxide is the symmetrical peroxide of lauric acid. It is produced by treating lauroyl chloride with hydrogen peroxide in the presence of base:
2C11H23COCl + H2O2+ 2NaOH → (C11H23CO2)2 + 2HCl
Allgemeine Beschreibung
Dilauroyl peroxide appears as a white solid with a faint soapy odor. Less dense than water and insoluble in water. Hence floats on water. Melting point 49 °C. Toxic by ingestion and inhalation. Strong skin irritant. Used as bleaching agent, drying agent for fats, oils and waxes, and as a polymerization catalyst.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
Dilauroyl peroxide is an oxidizing agent. Can ignite organic materials; hence a dangerous fire and explosion risk [Hawley]. Strongly reduced material such as sulfides, nitrides, and hydrides may react explosively. Vigorous reactions with other reducing agents. With charcoal sometimes ignites. [Bretherick, 5th ed., 1995, p. 1194].
Health Hazard
Contact with liquid irritates eyes and skin. Ingestion causes irritation of mouth and stomach.
Brandgefahr
Behavior in Fire: Can increase the severity of a fire. Becomes sensitive to shock when hot. Containers may explode in a fire. May ignite or explode spontaneously if mixed with flammable materials.
Carcinogenicity
The International Agency for Research on Cancer has evaluated the carcinogenicity of
lauroyl peroxide. They classified it as a Group 3 material,
which means there is limited or inadequate evidence for
animals and inadequate or absent information for
humans . The carcinogenicity of this peroxide has primarily
been studied using skin applications. After a single
topical application of 10, 20, or 40 mg of lauroyl peroxide,
the epidermal thickness increased markedly. This hyperplasia
was characterized by a sustained production of dark basal
keratinocytes. This peroxide is inactive as a tumor
initiator or as a complete carcinogen. However, it is as
effective as benzoyl peroxide as a skin tumor promoter.
Lager
Store in a well-ventilated, cool area, isolatedfrom other chemicals. It is shippedin fiber drums not exceeding 100 lb. Smallamounts may be shipped in 1-lb fiberboardboxes.
läuterung methode
Crystallise it from n-hexane or *benzene and store it below 0o. Potentially EXPLOSIVE. [cf Beilstein 2 IV 1102.]
Waste disposal
Although lauroyl peroxide is relatively lesshazardous, it is recommended that to handlespills and disposal, the same safety measuresbe followed as those for other hazardousorganic peroxides.
Dilauroylperoxid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
