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2,3-Dimethyl-2,3-diphenylbutane
Hosea Chem® supplies 2,3-Dimethyl-2,3-diphenylbutane, CAS 1889-67-4, also known as Dicumene and Dicumyl, an aromatic hydrocarbon used as a polymer additive, free-radical modifier and flame-retardant synergist in selected polymer applications, with reliabl Send Inquiry
Product Description
2,3-Dimethyl-2,3-diphenylbutane, CAS 1889-67-4
2,3-Dimethyl-2,3-diphenylbutane, CAS 1889-67-4, is an aromatic hydrocarbon with the molecular formula C18H22 and a molecular weight of 238.37. It is also known as Dicumene, Dicumyl, 2,3-Diphenyl-2,3-dimethylbutane and 1,2-Diphenyltetramethylethane.
The compound is a solid at room temperature and is commonly supplied as a white to light yellow powder, flakes or crystalline material depending on product grade. TCI reports a melting point of approximately 116–120°C for its high-purity material.
2,3-Dimethyl-2,3-diphenylbutane is used in polymer-related applications involving free-radical chemistry. Its relatively stable carbon-centered radical behavior makes it useful in selected polymer processing and modification systems.
The product has also been described as a flame-retardant synergist for polymer systems such as polypropylene and polystyrene, including expandable polystyrene (EPS).
Product Chemical Properties
Product Name: 2,3-Dimethyl-2,3-diphenylbutane (DMDPB)
CAS No.: 1889-67-4
EC No.: 217-568-2
Molecular Formula: C18H22
Molecular Weight: 238.37
Chemical Name: 2,3-Dimethyl-2,3-diphenylbutane
IUPAC Name: (2,3-Dimethyl-3-phenylbutan-2-yl)benzene
Chemical Type: Aromatic Hydrocarbon / Polymer Additive
Synonyms: Dicumene, Dicumyl, DMDPB, 2,3-Diphenyl-2,3-dimethylbutane, 1,2-Diphenyltetramethylethane, Alpha,alpha'-Dicumyl, 1,1'-(1,1,2,2-Tetramethylethylene)dibenzene
Melting Point: Approximately 116–120°C for high-purity material
Half-life data
The reactivity of a C-C initiator is usually given by its half-life at various temperatures. For DMDPB in chlorobenzene:
0.1 hr at 284℃ (543℉)
1 hr at 259℃ (498℉)
10 hr at 237℃ (459℉)
Density: 1.1g/cm3(20℃/ 68℉)
Melting point/freezing point: 90 - 110 ℃ / 194 - 230 ℉
Specific gravity: =1.1 (20℃/ 68℉)
Melting range: 90-110℃
Bulk density: 0.45 g/cm(20℃/ 68℉)
Boiling point: 306.1°C at 760 mmHg
Flashing point: 142.7°C
Solubility: Insoluble (20℃/ 68℉) ; Soluble in toluene (20℃/ 68℉)
Product Technical Specification
Appearance: White to light yellow powder
Odor: Faint
Active material: 95.0% min.
Applications of 2,3-Dimethyl-2,3-diphenylbutane
As a newpolymer additive, DMDPB can be usedas synergist for flame retardancy, and catalyzator or initiator for the crosslinking and graft copolymerization of polymeric materials, widely used for modifying the properties of polymer materials such as polyolefin, acrylic, polycarbonate and polyether, etc.
Packaging
Suitable packaging according to product grade, transportation requirements and customer requirements.
Typical commercial packaging may include bags, fiber drums, cartons or other approved containers.
The final packaging specification should be determined according to the actual product grade, order quantity and applicable transportation requirements.
Production Capacity
12000MT/year
Storage Requirements
Store the product in a cool, dry and well-ventilated area.
Keep containers tightly closed when not in use.
Protect the product from direct sunlight, excessive heat and moisture.
2,3-Dimethyl-2,3-diphenylbutane Bulk Supply from China
Hosea Chem® offers 2,3-Dimethyl-2,3-diphenylbutane, CAS 1889-67-4, also known as Dicumene, Dicumyl and DMDPB, in bulk quantities with competitive factory-direct pricing and professional export service.
The product can be supplied according to agreed purity, packaging and technical requirements for qualified industrial customers.
Contact Hosea Chem for the latest 2,3-Dimethyl-2,3-diphenylbutane price, bulk quotation, availability and technical documents.