| Identification | More | [Name]
tert-Butyl peroxybenzoate | [CAS]
614-45-9 | [Synonyms]
PERBENZOIC ACID TERT-BUTYL ESTER
PEROXYBENZOIC ACID TERT-BUTYL ESTER
P-TERT-BUTYL PERBENZOATE
TBPB
T-BUTYL PERBENZOATE
T-BUTYL PEROXYBENZOATE
TERT-BUTYL PERBENZOATE
TERT-BUTYL PEROXYBENZOATE
TRIGONOX(R) C
VAROX TBPB
VAROX TBPB-50
Benzenecarboperoxoicacid,1,1-dimethylethylester
benzoyltert-butylperoxide
butylperoxybenzoate
chaloxydtbpb
esperox10
novox
perbenzoatedebutyletertiaire
perbenzoatedebutyletertiaire(french)
perbutylz | [EINECS(EC#)]
210-382-2 | [Molecular Formula]
C11H14O3 | [MDL Number]
MFCD00008802 | [Molecular Weight]
194.23 | [MOL File]
614-45-9.mol |
| Chemical Properties | Back Directory | [Appearance]
colourless or slightly yellow liquid | [Melting point ]
8 °C
| [Boiling point ]
75-76 °C/0.2 mmHg (lit.) | [density ]
1.021 g/mL at 25 °C(lit.) | [vapor density ]
6.7 (vs air)
| [vapor pressure ]
3.36 mm Hg ( 50 °C)
| [refractive index ]
n20/D 1.499(lit.)
| [Fp ]
200 °F
| [storage temp. ]
2-8°C
| [solubility ]
water: soluble1.18g/L | [form ]
Liquid | [color ]
Clear yellow | [Odor]
mild aromatic odor | [Stability:]
Stable. Combustible. Incompatible with a wide range of organic materials-oxidizer. May react violently with organic compounds. | [Water Solubility ]
Immiscible | [BRN ]
1342734 | [InChIKey]
GJBRNHKUVLOCEB-UHFFFAOYSA-N | [LogP]
3 at 25℃ | [Uses]
Polymerization initiator for polyethylene,
polystyrene, polyacrylates, and polyesters; chem-
ical intermediate.
| [CAS DataBase Reference]
614-45-9(CAS DataBase Reference) | [NIST Chemistry Reference]
tert-Butyl peroxybenzoate(614-45-9) | [EPA Substance Registry System]
614-45-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
O,Xi,E | [Risk Statements ]
R7:May cause fire.
R38:Irritating to the skin.
R2:Risk of explosion by shock, friction, fire or other sources of ignition. | [Safety Statements ]
S7:Keep container tightly closed .
S14:Keep away from ... (incompatible materials to be indicated by the manufacturer) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S47:Keep at temperature not exceeding ... E C (to be specified by the manufacturer) .
S37:Wear suitable gloves .
S17:Keep away from combustible material . | [RIDADR ]
UN 3103 5.2
| [WGK Germany ]
2
| [RTECS ]
SD9450000
| [TSCA ]
Yes | [HazardClass ]
5.2 | [PackingGroup ]
II | [HS Code ]
29163900 | [Safety Profile]
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. | [Hazardous Substances Data]
614-45-9(Hazardous Substances Data) | [Toxicity]
LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit > 2000 mg/kg |
| Hazard Information | Back Directory | [General Description]
Clear, colorless to slightly yellow liquid with a mild, aromatic odor. TERT-BUTYL PEROXYBENZOATE, [<= 75% IN SOLUTION] also is stored and transported as a mixture with inert solids and as a solvent slurry, to mitigate the explosion hazard. | [Reactivity Profile]
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]. | [Air & Water Reactions]
Insoluble in water. | [Hazard]
Oxidizing material; do not store near com-
bustible materials.
| [Description]
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. | [Chemical Properties]
colourless or slightly yellow liquid | [Synthesis Reference(s)]
Journal of the American Chemical Society, 68, p. 642, 1946 DOI: 10.1021/ja01208a033 | [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. | [Fire Hazard]
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(100%) | [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 . | [storage]
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. |
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