6,6'-Di-tert-butyl-4,4'-thiodi-m-kresol Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
white to almost white crystals or crystalline
Verwenden
4,4''-Thiobis(2-tert-butyl-5-methylphenol) is an antioxidant in the rubber and plastics industry. 4,4''-Thiobis(2-tert-butyl-5-methylphenol) is a radical inhibitor which prevents the thermal decomposition of the peracid. In addition, it is used as a stabilizer in polyethylene and polyolefin packaging materials for foodstuffs. Protection of light-colored rubber from oxidation and of nonstaining neoprene compounds against deterioration.
Allgemeine Beschreibung
White or light gray to tan powder.
Air & Water Reaktionen
Sensitive to base hydrolysis and may spontaneously oxidize in solution. . Insoluble in water.
Reaktivität anzeigen
4,4'-Thiobis(6-tert-butyl-m-cresol) may be sensitive to light.
Hazard
Toxic by inhalation. Upper respiratory tract
irritant. Questionable carcinogen.
Health Hazard
4,4'-Thiobis(6-tert-butyl-mcresol)
(TBBC) is of low systemic toxicity in
animals; allergic contact dermatitis has been
reported in humans.
Brandgefahr
4,4'-Thiobis(6-tert-butyl-m-cresol) is combustible.
Sicherheitsprofil
Poison by
intraperitoneal route and probably by
ingestion and inhalation. Mutation data
reported. See also SULFIDES. When heated
to decomposition it emits highly toxic fumes
of SOx.
mögliche Exposition
This material is used as an antioxidant in the plastics and rubber industries; in Neoprene and other synthetic rubbers; in polyethylene and polypropylene.
Carcinogenicity
TBBC was not mutagenic in Salmonella
typhimurium strains with or without metabolic
activation. In Chinese hamster ovary cells,
TBBC induced an increase in sister chromatid
exchanges but there were no increases in chromosomal
aberrations.
Inkompatibilitäten
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. May evolve explosive hydrogen sulfide upon contact with moisture or acids.
6,6'-Di-tert-butyl-4,4'-thiodi-m-kresol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
