2444-90-8

Basic information

• Product Name: disodium 4,4'-isopropylidenediphenolate
• Synonyms: disodium 4,4'-isopropylidenediphenolate;2,2-BIS(4-HYDROXYPHENYL)PROPANE,DISODIUMSALT;4,4'-(1-Methylethylidene)bis[1-(sodiooxy)benzene];4,4'-(Dimethylmethylene)bis[1-(sodiooxy)benzene];4,4'-Isopropylidenebis[1-(sodiooxy)benzene];Disodium 4,4'-(1-methylethylidene)diphenolate;Disodium 4,4'-(dimethylmethylene)bisphenolate;Isopropylidenebis(4,1-phenylene)bis(oxy)disodium
• CAS NO: 2444-90-8
• Molecular Formula: C₁₅H₁₄O₂*2Na
• Molecular Weight: 272.25
• EINECS: 219-488-3
• Mol File: 2444-90-8.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 400.8°Cat760mmHg
• Flash Point: 192.4°C
• Appearance: /
• Density: 1.143g/cm³
• Storage Temp.: Inert atmosphere,Room Temperature
• CAS DataBase Reference: disodium 4,4'-isopropylidenediphenolate(CAS DataBase Reference)
• NIST Chemistry Reference: disodium 4,4'-isopropylidenediphenolate(2444-90-8)
• EPA Substance Registry System: disodium 4,4'-isopropylidenediphenolate(2444-90-8)

Safety Data

• Hazardous Substances Data: 2444-90-8(Hazardous Substances Data)

Usage

Hazard

Moderately toxic by ingestion and skin con- tact. A moderate skin and severe eye irritant.

Upstream product

• 80-05-7 BPA 

Downstream Products

• 110299-20-2 1,4-di<4-<1-methyl-1-(4-hydroxyphenyl)ethyl>phenoxy>tetrachlorobenzene 
• 54395-38-9 2,2-bis(4-hydroxyphenyl)propane bis(N-phenyl-3-phthalimidyl ether) 
• 131043-00-0 2,2,3,3-Tetrafluoro-3-(4-{1-methyl-1-[4-(1,1,2,2-tetrafluoro-ethoxy)-phenyl]-ethyl}-phenoxy)-propionic acid methyl ester 
• 131042-99-4 Dimethyl 3,3'-<(1-methylethylidene)bis(4,1-phenyleneoxy)>bis(2,2,3,3-tetafluoropropionate) 
• 131043-06-6 Dimethyl 3,3'-<(1-methylethylidene)bis(4,1-phenyleneoxy)>bis(2-chloro-2,3,3-trifluoropropionate) 
• 131043-07-7 3,3'-<(1-Methylethylidene)bis(4,1-phenyleneoxy)>bis(2-chloro-2,3,3-trifluoropropanol) 
• 131043-08-8 3,3'-<(1-Methylethylidene)bis(4,1-phenyleneoxy)>bis(2-chloro-2,3,3-trifluoropropanamide) 
• 90139-53-0 1,1'-(1-methylethylidene)bis[4-[4-(phenylsulfonyl)phenoxy]benzene] 
• 38103-06-9 4,4'-bis(4,4'-isopropylidene diphenoxy)-bis(phthalic anhydride) 
• 52256-80-1 2,2-bis[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride 
• 54395-52-7 4,4’-bisphenol A-bis-N-methylphthalimide 

Relevant articles and documents

Vortex fluidic mediated synthesis of polysulfone

Polysulfone (PSF) was prepared under high shear in a vortex fluidic device (VFD) operating in confined mode, and its properties compared with that prepared using batch processing. This involved reacting the pre-prepared disodium salt of bisphenol A (BPA) with a 4,4′-dihalodiphenylsulfone under anhydrous conditions. Scanning electron microscopy (SEM) established that in the thin film microfluidic platform, the PSF particles are sheet-like, for short reaction times, and fibrous for long reaction times, in contrast to spherical like particles for the polymer prepared using the conventional batch synthesis. The operating parameters of the VFD (rotational speed of the glass tube, its tilt angle and temperature) were systematically varied for establishing their effect on the molecular weight (Mw), glass transition temperature (Tg) and decomposition temperature, featuring gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) respectively. The optimal VFD prepared PSF was obtained at 6000 rpm rotational speed, 45° tilt angle and 160 °C, for 1 h of processing with Mw ～10,000 g mol-1, Tg ～158 °C and decomposition temperature ～530 °C, which is comparable to the conventionally prepared PSF.

Process for preparing dibasic salts of bisphenols

The present invention discloses a process for preparing dibasic salt of bisphenol from bisphenol and alkali, wherein the bisphenol and the alkali are reacted in a reaction medium consisting of an organic solvent or an aqueous inorganic salt solution, and then through filtration, a highly pure dibasic salt of bisphenol is directly obtained at a yield of higher than 90%.

Process for preparing bis(ether anhydrides) using alkylamine derived bisimides having low melting temperatures

A process for making bis(ether anhydrides) employs alkylamines having low melting temperatures thus allowing for novel intermediate process steps for preparing bis(ether anhydrides). The alkylamines have alkyl groups which contain at least three carbon atoms and have boiling temperatures in the range of 48° to 250° C. at atmospheric pressure. As a result of using these amines, liquid alkylamines now can be employed in the imidization process step. The N-alkyl nitrophthalimides prepared from the recovered imidization product according to this invention can now be purified using liquid/liquid extraction or vacuum distillation. The alkyl nitrophthalimides prepared according to this invention provide for displacement reactions which now can be run at a high solids level. Likewise, the exchange reaction can be run at a higher solids level, and thus achieves an efficiency level which is higher than conventional processes.