2081-08-5

Basic information

• Product Name: 4,4'-ETHYLIDENEBISPHENOL
• Synonyms: Ethylidenebisphenol;4,4'-ETHYLIDENEBISPHENOL 99%;4,4'-ETHYLIDENEBISPHENOL 98+%;4,4'-(Methylmethylene)bisphenol;1,1-Bis(4-hydroxyphenyl)ethane 4,4'-Ethylidenediphenol;4,4'-(Ethene-1,1-diyl)diphenol;BISPHENOL E;4,4'-ETHYLIDENEBISPHENOL
• CAS NO: 2081-08-5
• Molecular Formula: C₁₄H₁₄O₂
• Molecular Weight: 212.24
• Product Categories: Color Former & Related Compounds;Developer;Fluorenes, etc. (reagent for high-performance polymer research);Functional Materials;Reagent for High-Performance Polymer Research
• Mol File: 2081-08-5.mol
• Article Data: 18

Chemical Properties

• Melting Point: 123-127 °C(lit.)
• Boiling Point: 215 °C(Press: 0.7 Torr)
• Appearance: /
• Density: 1.171±0.06 g/cm3(Predicted)
• Storage Temp.: Sealed in dry,Room Temperature
• Solubility: Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
• PKA: 10.10±0.10(Predicted)
• CAS DataBase Reference: 4,4'-ETHYLIDENEBISPHENOL(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-ETHYLIDENEBISPHENOL(2081-08-5)
• EPA Substance Registry System: 4,4'-ETHYLIDENEBISPHENOL(2081-08-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 2081-08-5(Hazardous Substances Data)

Usage

Uses

Bisphenol E is a derivative of Bisphenol A (B519495) which is a monomer used for polycarbonate and epoxy resins.

Upstream product

• 75-07-0 acetaldehyde 
• 108-95-2 phenol 
• 60-29-7 diethyl ether 
• 7664-93-9 sulfuric acid 
• 74-86-2 acetylene 
• 7732-18-5 water 
• 7646-78-8 tin(IV) chloride 
• 123-63-7 paracetaldehyde 
• 64-17-5 ethanol 
• 2971-36-0 2,2-bis(p-hydroxyphenyl)-1,1,1-trichloroethane 
• 105-57-7 diethyl acetal 
• 51337-22-5 C₂₂H₂₃NO₂ 
• 5031-92-5 1,1-Bis(4-ethoxyphenyl)ethylene 
• 4356-69-8 1,1-bis-(4-methoxyphenyl)ethylene 

Downstream Products

• 123-07-9 4-Ethylphenol 
• 4534-74-1 4-ethylcyclohexanol 
• 100912-17-2 4,4'-ethylidene-bis-cyclohexanol 
• 126369-25-3 4,4'-(ethane-1,1-diyl)bis(2,6-dibromophenol) 
• 102054-11-5 6,6'-dihydroxy-3,3'-ethylidene-di-benzoic acid 
• 108-93-0 cyclohexanol 
• 108-95-2 phenol 
• 6245-87-0 [1,4]benzoquinone-mono-(4-amino-phenylimine) 
• 75-07-0 acetaldehyde 
• 1689-82-3 4-hydroxyazobenzene 
• 99-28-5 2,6-dibromo-4-nitrophenol 
• 2316-50-9 2-bromo-4,6-dinitrophenol 
• 860766-88-7 2,3,6,2',3',6'-hexabromo-4,4'-ethylidene-di-phenol 
• 859951-63-6 2,3,5,6,2',3',5',6'-octabromo-4,4'-ethylidene-di-phenol 

Relevant articles and documents

Eco-friendly Solvent-free Route to Alkyl- and Aryl-Bisphenols Catalyzed by Perchloric Acid-Silica

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Preparation method for bisphenol E

A preparation method for bisphenol E is disclosed and belongs to the field of preparation methods for bisphenol compounds. The technical problems that a conventional bisphenol E preparation method is complex in operation, toxicity is high and the finished-product purity is low are solved. The method comprises step 1, precipitating a crystal; step 2, washing and drying, so as to obtain a crude product; and step 3, performing rectification. By employing the method, the usage amount of phenol is reduced, reaction time is shortened, the product ratio in the crude product is improved, and the final product bisphenol E purity is 99.9%. In the method, petroleum ether is employed for replacing cyclohexane, thus the cost is reduced, and petroleum ether and ethyl acetate are employed for replacing toluene as a refined solvent, and thus the toxicity is reduced.

MANUFACTURING METHOD FOR POLYCARBONATE

A method for manufacturing polycarbonate by melt-polycondensing bisphenol and carbonic acid diester uses as catalyst an alkali metal compound and/or alkaline earth metal compound (a). The catalyst is added to the bisphenol prior to the melt polycondensation, in an effective amount, i.e., the amount of alkali metal compound and/or alkaline earth metal compound (a) that acts effectively as a catalyst, is contained in said bisphenol, and is controlled to have the same catalytic activity as 1×10?8 to 1×10?6 mole of bisphenol disodium salt per mole of pure bisphenol A. The method conducts the reaction efficiently from the initial stage in a stable manner to obtain polycarbonate with good color, good heat stability and color stability during molding and the like.