| Identification | More | [Name]
Dicumyl peroxide | [CAS]
80-43-3 | [Synonyms]
2,5-DIMETHYL-2,5-DI(BENZOYLPEROXY)HEXANE
BIS(1-METHYL-1-PHENYLETHYL)PEROXIDE
BIS(A A-DIMETHYLBENZYL) PEROXIDE
BIS(ALPHA,ALPHA-DIMETHYLBENZYL) PEROXIDE
Curing agent DCP
DICUMYL PEROXIDE
Dicumyl peroxide(content>42%,with inert solid)
Dicumyl peroxide(technically pure)
LUPEROX(R) DCSC
VAROX 118
VAROX 230-XL
VAROX DCP-40C
VAROX DCP-40KE
VAROX DCP-R
activedicumylperoxide
alpha,alpha’-dicumylperoxide
alpha,alpha-dimethylbenzylperoxide
alpha-cumylperoxide
Bis(,-dimethylbenzyl)peroxide
bis(2-phenyl-2-propyl)peroxide | [EINECS(EC#)]
201-279-3 | [Molecular Formula]
C18H22O2 | [MDL Number]
MFCD00675945 | [Molecular Weight]
270.37 | [MOL File]
80-43-3.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [Melting point ]
39-41 °C (lit.) | [Boiling point ]
130°C | [density ]
1.56 g/mL at 25 °C(lit.)
| [vapor density ]
9.3 (vs air)
| [vapor pressure ]
15.4 mm Hg ( 38 °C)
| [refractive index ]
1.5360 | [Fp ]
>230 °F
| [storage temp. ]
2-8°C
| [form ]
flakes
| [color ]
White | [Stability:]
Reacts violently with reducing agents, heavy metals, concentrated acids, concentrated bases. May ignite organic materials on contact. May decompose violently upon exposure to sunlight or if heated. Incompatible with strong oxidizing agents. | [Water Solubility ]
insoluble | [Hydrolytic Sensitivity]
4: no reaction with water under neutral conditions | [BRN ]
2056090 | [CAS DataBase Reference]
80-43-3(CAS DataBase Reference) | [EPA Substance Registry System]
80-43-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
O,Xi,N,Xn | [Risk Statements ]
R7:May cause fire.
R36/38:Irritating to eyes and skin .
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin .
R20:Harmful by inhalation. | [Safety Statements ]
S14:Keep away from ... (incompatible materials to be indicated by the manufacturer) .
S3/7:Keep container tightly closed in a cool place .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S17:Keep away from combustible material . | [RIDADR ]
UN 3110 5.2
| [WGK Germany ]
2
| [RTECS ]
SD8150000
| [F ]
4.2 | [TSCA ]
Yes | [HazardClass ]
5.2 | [PackingGroup ]
II | [HS Code ]
29096000 | [Safety Profile]
Mildly toxic by
ingestion. See also PEROXIDES. When
heated to decomposition it emits acrid
smoke and irritating fumes. | [Hazardous Substances Data]
80-43-3(Hazardous Substances Data) | [Toxicity]
LD50 orally in Rabbit: 4100 mg/kg |
| Hazard Information | Back Directory | [General Description]
White powder with a characteristic odor. | [Reactivity Profile]
The explosive instability of the lower dialkyl peroxides (e.g., dimethyl peroxide) and 1,1-bis-peroxides decreases rapidly with increasing chain length and degree of branching, the di-tert-alkyl derivatives being amongst the most stable class of peroxides. Though many 1,1-bis-peroxides have been reported, few have been purified because of the higher explosion hazards compared with the monofunctional peroxides. DICUMYL PEROXIDE is unlikely that this derivative would be particularly unstable compared to other peroxides in it's class, Bretherick 2nd ed., p 44 1979. | [Chemical Properties]
Dicumyl peroxide is a crystalline solid that melts at 42°C. It is
insoluble in water and soluble in vegetable oil and organic
solvents . It is used as a high-temperature catalyst in
production of polystyrene plastics. The deflagration hazard
potential of this peroxide was tested using 5 g of igniter in the
revised time–pressure test, but no pressure rise was produced
. Noller et al. found it to be an intermediate fire
hazard. | [Chemical Properties]
white powder | [Uses]
Dicumyl peroxide (DCP) is used:
- in vulcanization of rubber
- as a crosslinking agent in the synthesis of polylactic acid composite fibers
- in the preparation of polyethylene composites
- in the synthesis of polyamide 112/ethylene vinyl acetate copolymer blends.
| [Uses]
Dicumyl peroxide (DCP) is used: ? in vulcanization of rubber. ? as a cross linking agent in the synthesis of polylactic acid composite fibers. ? in the preparation of polyethylene composites. ? in the synthesis of polyamide 112/ethylene vinyl acetate copolymer blends. | [Flammability and Explosibility]
Nonflammable | [Purification Methods]
Crystallise the peroxide from 95% EtOH (charcoal). Store it at 0o. Potentially EXPLOSIVE. [Beilstein 6 IV 3220.] |
|