tert-Butylperbenzoat

Bezeichnung:tert-Butylperbenzoat

CAS-Nr614-45-9

Englisch Name:tert-Butyl peroxybenzoate

CBNumberCB5134490

SummenformelC11H14O3

Molgewicht194.23

MOL-Datei614-45-9.mol

Synonyma

tert-Butylperbenzoat

tert-Butylperbenzoat physikalisch-chemischer Eigenschaften

Schmelzpunkt	8 °C
Siedepunkt	75-76 °C/0.2 mmHg (lit.)
Dichte	1.021 g/mL at 25 °C (lit.)
Dampfdichte	6.7 (vs air)
Dampfdruck	3.36 mm Hg ( 50 °C)
Brechungsindex	n20/D 1.499(lit.)
Flammpunkt	200 °F
storage temp.	2-8°C
Löslichkeit	water: soluble1.18g/L
Aggregatzustand	Liquid
Farbe	Clear yellow
Geruch (Odor)	mild aromatic odor
Wasserlöslichkeit	Immiscible
BRN	1342734
Stabilität	Stable. Combustible. Incompatible with a wide range of organic materials - oxidizer. May react violently with organic compounds.
InChIKey	GJBRNHKUVLOCEB-UHFFFAOYSA-N
LogP	3 at 25℃
CAS Datenbank	614-45-9(CAS DataBase Reference)
NIST chemische Informationen	tert-Butyl peroxybenzoate(614-45-9)
EPA chemische Informationen	tert-Butyl perbenzoate (614-45-9)

Sicherheit

Kennzeichnung gefährlicher	O,Xi,E,N
R-Sätze:	7-38-2-50-43
S-Sätze:	7-14-36/37/39-47-37-17-61-39-35-26
RIDADR	UN 3103 5.2
WGK Germany	2
RTECS-Nr.	SD9450000
TSCA	Yes
HazardClass	5.2
PackingGroup	II
HS Code	29163900
Giftige Stoffe Daten	614-45-9(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit > 2000 mg/kg

Gefahreninformationscode (GHS)

tert-Butyl peroxybenzoate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R7:Kann Brand verursachen.
R38:Reizt die Haut.
R2:Durch Schlag, Reibung, Feuer oder andere Zündquellen explosionsgefährlich.
S-Sätze Betriebsanweisung:
S7:Behälter dicht geschlossen halten.
S14:Von . . . fernhalten (inkompatible Substanzen sind vom Hersteller anzugeben).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S47:Nicht bei Temperaturen über . . . °C aufbewahren (vom Hersteller anzugeben).
S37:Geeignete Schutzhandschuhe tragen.
S17:Von brennbaren Stoffen fernhalten.
Beschreibung
Tert-Butyl peroxybenzoate (TBPB) is an organic compound with the formula C6H5CO3CMe3 (Me = CH3). TBPB, a pale yellow, is exclusively encountered as a solution in solvents such as ethanol or phthalate. It is an ester of peroxybenzoic acid and the most widely produced perester.
Chemische Eigenschaften
colourless or slightly yellow liquid. At 124 ℃ (temperature), the half-life of tert-butyl peroxybenzoate is 10 hours.
Verwenden
Tert-Butyl peroxybenzoate is used for elevated temperature curing of polyesters and to initiate polymerization reactions. It could used as a Polymerization initiator for polyethylene, polystyrene, polyacrylates, and polyesters. It is also used as a chemical intermediate.
Verwenden
tert-Butyl peroxybenzoate was employed as polymerization and cross-linking catalyst. It was also was employed as initiator during ?grafting of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO)-4-oxyacetamido-(3 propyltriethoxysilane) to poly(ethylene co-octene and in preparation of conformal poly(cyclohexyl methacrylate) thin films via initiated chemical vapor deposition.
Synthesis Reference(s)
Journal of the American Chemical Society, 68, p. 642, 1946 DOI: 10.1021/ja01208a033
Allgemeine Beschreibung
Clear, colorless to slightly yellow liquid with a mild, aromatic odor. tert-Butyl peroxybenzoate also is stored and transported as a mixture with inert solids and as a solvent slurry, to mitigate the explosion hazard.
Air & Water Reaktionen
Insoluble in water.
Reaktivität anzeigen
TERT-BUTYL PEROXYBENZOATE explodes with great violence when rapidly heated to a critical temperature; pure form is shock sensitive and detonable [Bretherick 1979 p. 602]. Upon contact with organic matter, t-butyl peroxybenzoate can ignite or give rise to an explosion [Haz. Chem. Data 1973 p. 77].
Hazard
Oxidizing material; do not store near com- bustible materials.
Health Hazard
t-Butyl peroxybenzoate is a mild skin andeye irritant. Exposure to 500 mg/day causedmild irritation in rabbit eyes and skin. Toxicitydata on animals show a low order oftoxicity.
LD₅₀ value, oral (mice): 914 mg/kg
It has been reported to cause tumors(blood) in mice. Its carcinogenic actions onhumans are unknown.
Brandgefahr
Highly reactive and oxidizing compound with moderate flammability; flash point (open cup) 107–110°C (224.6–230°F); autoignition temperature not reported.
It forms an explosive mixture with air; the explosive range not reported. It is not sensitive to shock but is heat sensitive. It explodes on heating; self-accelerating decomposition temperature 60°C (140°F).
It may react explosively when mixed with readily oxidizable, organic, and flammable substances. Fire-extinguishing agent: water from a sprinkler; use water to keep the containers cool.
Flammability and Explosibility
Flammable
Sicherheitsprofil
Moderately toxic by ingestion. A skin and eye irritant. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. See also PEROXIDES, ORGANIC. Potentially explosive when heated above 11 5'C. Explosive reaction on contact with organic matter or copperQ) bromide + limonene. When heated to decomposition it emits acrid smoke and fumes.
Carcinogenicity
Other studies have determined the possibility that t-butyl peroxybenzoate can be metabolized to free radicals by human carcinoma skin keratinocytes. Free radicals are suggested to be involved in the cascade of events occurring during tumor promotion .
Lager
It should be stored in a well-ventilatedplace at a temperature between 10 and27°C (50–80°F), isolated from oxidizable,flammable, organic materials and accelerators.It should be shipped in glass, polyethylene,and earthenware containers of up to5-gallon capacity placed inside wooden orfiberboard boxes.

tert-Butyl peroxybenzoate Upstream-Materialien And Downstream Produkte

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