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1889-67-4

1889-67-4 Structure

1889-67-4 Structure
IdentificationBack 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 PropertiesBack 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 InformationBack 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
[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.
Safety DataBack Directory
[Safety Statements ]

24/25
[HS Code ]

29029090
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2,3-Dimethyl-2,3-diphenylbutane(1889-67-4).msds
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