| Identification | Back Directory | [Name]
2,3-Dimethyl-2,3-diphenylbutane | [CAS]
1889-67-4 | [Synonyms]
Dicumyl
Bicumyl
DICUMENE
Perkadox 30
Interox CC-DFB
alpha,alpha'-Dicumyl
SALOR-INT L170127-1EA
Bibenzyl, alpha,alpha,alpha
1,2-Diphenyltetramethylethane
2,3-diMethy-2,3-diphenylbutane
2,3-Diphenyl-2,3-dimethylbutane
2,3-DIMETHYL-2,3-DIPHENYLBUTANE
Butane, 2,3-dimethy-2,3-diphenyl-
Butane, 2,3-dimethyl-2,3-diphenyl-
2,3-DIMETHYL-2,3-DIPHENYLBUTANE 95+%
1,2-Diphenyl-1,1,2,2-tetramethylethane
2,3-DiMethyl-2,3-Diphenylbutane(DMDPB)
(2,3-Dimethylbutane-2,3-diyl)dibenzene
(1,1,2-Trimethyl-2-phenylpropyl)benzene
(2,3-Dimethyl-3-phenylbutan-2-yl)benzene
DICUMENE(2,3-diMenthy-2,3-diphenylbutane)
1,1′-(1,1,2,2-Tetramethylethylen)dibenzol
2,3-DiMethyl-2,3-diphenylbutane, 95% 100GR
1,1'-(1,1,2,2-Tetramethylethylene)dibenzene
Bibenzyl, alpha,alpha,alpha',alpha'-tetramethyl-
1,1’-(1,1,2,2-tetramethyl-1,2-ethanediyl)bis-benzen
1,1'-(1,1,2,2-tetramethyl-1,2-ethanediyl)bisbenzene
1,1'-[1,1,2,2-Tetramethyl-1,2-ethandiyl]bis[benzene]
Benzene, 1,1-(1,1,2,2-tetramethyl-1,2-ethanediyl)bis- | [EINECS(EC#)]
217-568-2 | [Molecular Formula]
C18H22 | [MDL Number]
MFCD00053713 | [MOL File]
1889-67-4.mol | [Molecular Weight]
238.37 |
| Chemical Properties | Back Directory | [Appearance]
white to light yellow flakes, crystalline powder | [Melting point ]
90-110 °C
| [Boiling point ]
335.97°C (estimate) | [density ]
0.9859 (estimate) | [vapor pressure ]
0.015Pa at 20℃ | [refractive index ]
1.5413 (estimate) | [storage temp. ]
Refrigerator (+4°C) | [form ]
Flakes, Crystalline Powder or Chunks | [color ]
White to light yellow | [Water Solubility ]
insoluble | [InChI]
InChI=1S/C18H22/c1-17(2,15-11-7-5-8-12-15)18(3,4)16-13-9-6-10-14-16/h5-14H,1-4H3 | [InChIKey]
HGTUJZTUQFXBIH-UHFFFAOYSA-N | [SMILES]
C(C1=CC=CC=C1)(C)(C)C(C1=CC=CC=C1)(C)C | [LogP]
6.68 at 25℃ | [NIST Chemistry Reference]
Benzene, 1,1'-(1,1,2,2-tetramethyl-1,2-ethanediyl)bis-(1889-67-4) | [EPA Substance Registry System]
Benzene, 1,1'-(1,1,2,2-tetramethyl- 1,2-ethanediyl)bis-(1889-67-4) |
| Hazard Information | Back Directory | [Chemical Properties]
white to light yellow flakes, crystalline powder | [Description]
2,3-Dimethyl-2,3-diphenylbutane is one of the decomposition of Dicumylperoxide (DCP). Diallyl orthophthalate (DAOP) is a reactive plasticizer initiated by 2,3-dimethyl-2,3-diphenylbutane for improving polyphenylene oxide (PPO) processing. | [Uses]
Dicumene is an environment friendly replacement for Antimony Tri-oxide (Sb2O3) and is commonly used as a flame retardant (FR) synergist for polypropylene and polystyrene, especially in expandable polystyrene (EPS). | [Reactivity Profile]
Adding appropriate modifiers dicumen can improve the performance of the polymer. In the case of heat or light, the product is easy to divide and form a certain free radical. The free radical is more stable due to the resonance of the benzene ring and the hyper-shock effect of methyl. In fact, the modification of Dicumene in the polymer is achieved through the free radical. It is found that when the temperature increases, the half-life of dicumen becomes shorter. The temperature of its decomposition is high. And at 230 degrees, the half-life will reach thirty minutes.
| [Flammability and Explosibility]
Nonflammable | [Synthesis]
A method for producing 2,3-dimethyl-2,3-diphenylbutane is carried out by using cumene and an organic peroxide as starting materials and reacting them based on thermal decomposition of the organic peroxide.
| [References]
[1] Parent J, et al. Mechanism and selectivity of 2,3-dimethyl-2,3-diphenylbutane mediated addition of vinyltriethoxysilane to polyethylene. European Polymer Journal, 2006; 42: 971-980.
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