Ethylene dihydrate

ChemicalDesignations- no/ /ns 1,2-Dihydroxyethane 1,2-Ethanediol Ethylene dihydrate Glycol Monoethylene glycol Chemical Formula HOCHjCHjOH. 

Synonyms 1,2 Dihydroxyethane 1,2-ethanediol ethylene alcohol ethylene dihydrate... 

ETHYLENE DIHYDRATE see EJC500 ETHYLENE DIMERCAPTAN see EEBOOO a-ETHYLENE DIMERCAPTAN see EEBOOO ETHYLENE DIMETHYL ETHER see DOE600 ETHYLENE DINITRATE see EJGOOO ETHYLENEDINITRILOTETRAACETIC ACID see EIXOOO... 

ETHYLENE DIHYDRATE (107-21-1) C2HSO2 Combustible liquid [explosion limits in air (vol %) 3.2 to uel unknown flashpoint... 

ETHYLENE DIHYDRATE (107-21-1) Combustible liquid (flash point 23rF/lll°C). Violent reaction with oxidizers and oxidizing acids, sulfuric acid. Forms explosive mixture with sodium perchlorate. Incompatible with strong acids, caustics, aliphatic amines, isocyanates, chlorosulfonic acid, oleum, potassium bichromate, phosphorus pentasulfide, sodium chlorite. 

SYNONYMS 1,2-dihydroxyethane, 1,2-ethanediol, glycol alcohol, monoethylene glycol, ethylene alcohol, ethylene dihydrate. 

Structure HO—CH2—CH2—OH Synonyms ethylene glycol 1,2-dihydroxy-ethane ethylene dihydrate ethane-1,2-diol... 

Ethylene dihydrate. See Ethylene glycol Ethylene dihydrogenated tallowamide CAS 68647-78-8 EINECS/ELINCS 271-973-9 Synonyms Amides, tallow, hydrogenated, N,N -ethylenebis- N,N -1,2-Ethanediylbis (hydrogenated tallowamide) (Hydrogenated tallowamide), N,N -1,2-ethanediylbis-Classification Diamide... 

Ethylene dihydrate Glycol (INCI) Glycol alcohol MEG Monoethylene glycol... 

Ethylene Diglycol Ethylene Dihydrate (Ethy lenedinitrilo)T etraacetic Acid... 

Synonyms 1,2-Dihydroxyethane EG 1,2-Ethanediol Ethane-1,2-diol Ethylene alcohol Ethylene dIhydrate Glycol (INCI) Glycol alcohol MEG Monoethylene glycol... 

Polyhydric alcohols are compounds containing two or more hydroxyl groups in the molecule. The two most important are ethylene glycol HOCHjCHjOH (a dihydric alcohol) and glycerol HOCHjCH(OH)CH. OH (a trihydric alcohol). Ethylene glycol may be obtained by the hydrolysis of ethylene dibromide or ethylene dichloride with dilute aqueous sodium hydroxide or sodium carbonate solution ... 

Higher alcohols have more than three carbon atoms. Examples are the dihydric alcohol, ethylene glycol used for antifreeze, brake fluids and as derivatives in resins, paints " " osives, and polyester fibers. Reactions with propylene make propylene glycol, a moistening ag foods and tobacco. 

Procedure Weigh accurately about 0.15 g of calcium chloride dihydrate and dissolve it in 50 ml of DW. Titrate with 0.05 M disodium ethylenediamine tetracetate to within a few ml of the expected end point, add 8.0 ml of sodium hydroxide solution and 0.1 g of calcon mixture and continue the titration until the colour of the solution changes from pink to a full blue colour. Each ml of 0.05 M disodium ethylene disodium tetracetate is equivalent to 0.007351 g of CaCl2.2H20. 

Otto Bayer produced PUs in the 1940 s by reacting diisocyanates, such as tolyl diisocyanate, with dihydric alcohols, such as ethylene glycol. In another experiment he added a diisocyanate to cure synthetic rubber (SR) containing hydroxyl groups. The rubber was cured (vulcanized), but it stuck to the mold. Variations of products from these two experiments are now used as two-component adhesives for bonding footwear and automotive plastic parts. 

Long chain polymers of ethylene-oxide with dihydric alcohols HOCHj (CH2 0CH2 )nCH2 OH Carbowaxes Carbide and Carbon Chem Co... 

GLYCOL. A dihydric alcohol (i.e.. a compound conlaining two alcoholic hydroxy] groups). The chemical properties are represented by those of the simplest members of the class, ethylene glycol, 1,2-ethanediol. CH-OH CHjOH. which is a colorless, viscous liquid, of sweetish taste. Odorless, boiling point I97°C. miscible in all proportions with water or alcohol, slightly soluble in ether. Like ethyl alcohol, ethylene glycol is often called by the class name. 

POLYESTER FIBERS. The principal characteristics of these fibers are described in the endy on Fibers. Polyester fibers are defined as synthetic fibers containing at least 80% of a long-chain polymer compound of an ester of a dihydric alcohol and terephthalic acid. T he first polyester fiber to be commercialized was prepared from the ester in which the dihydric alcohol was ethylene glycol this fiber is the material used in the largest quantity bv the textile industry. For some other commercial uses, the ester 1,4-dimethyldicyclohexyl terephthalate is also used... 

Long-cham polymers of ethylene oxide combined with a dihydric alcohol, namely polyoxyethylene glycol, ( Carbo-wax"). 

These derivatives fall into two classes, the first containing an unsubstituted nucleus, and the second having alkoxy-groups in the nucleus. The former may be represented by triphenyl selenium chloride, prepared by adding diphenyl selenium dichloride to a suspension of aluminium chloride in dry benzene. This chloride is crystalline, absorbs atmospheric moisture to yield a dihydrate, and decomposes at its melting-point, forming diphenyl selenide and chlorobenzene. Boiling with ethylene dibromide converts it into triphenyl selenium bromide. The hydroxide has not been isolated in the solid state, but salts have been prepared. The alkoxy-derivatives are represented by... 

To a round-bottomed flask (50 ml) equipped with a long-necked adapter, reflux condenser, and a magnetic stirrer bar, add ethylene chloride (2.1 ml), Aliquat (0.10 g, 0.25 mmol), sodium tungstate dihydrate (0.14 g, 0.72 mmol), phosphoric acid (40% solution)(0.17 g, 1.72 mmol), and adjust pH of the solution to ca. 1.6 with a diluted sulfuric acid (30% solution). 

Maleic and phthalic anhydrides and fumaric acid are mainly used for polyester resin synthesis. However, dihydric alcohols such as ethylene and propylene glycols, diethylene, dipropylene, triethylene and neopentyl glycols, and hydrided or oxypropylened diphenylolpropane are also used.5 7 Different combinations of dibasic acids with diols allow us to vary the composition and properties of the resulting polyester resins over a wide range. 

The study was further extended to investigate the effect of a range of dihydric alcohols (ethylene glycol, 1,3-propanediol, 1,2-butanediol and 1,3-butanediol). The addition of the dihydric alcohol improved the smoothness and color of the deposits and also increased the cathodic current efficiency at high current density. Of the four dihydric alcohols, ethylene glycol gave the best results. 

We have extended the method of solubilization of SWNTs to oxide nanorods. We prepared ZnO nanorods by the solvothermal decomposition of 250 mg (0.911 mmol) of zinc acetate dihydrate in the presence of 6 mL (0.102 mmol) of ethylene-... 

Glycol. Ethylene glycol, HO—CH2—CH2—OH also a general term for dihydric alcohols, that is, dihydroxy derivatives of the aliphatic hydrocarbons. 

Sodium ethylenediamine tetra-acetate (5 %). Dissolve 5 g sodium ethylene-diamine tetra-acetate dihydrate, [CH2N(CH2C00H).CH2.C00Na]2.2H20 (Na2EDTA), in water and dilute to 100 ml. 

Polyphosphates derived from 4,4 -dihydric phenols or 4,4 -isopropylidenebis-phenol, bis(2,6-dibromophenol) and having an active moiety like 154 impart flame retardant properties [ W]. Thermostable polyesters were prepared by addition of bis(2-hydroxyethyl)phosphate prior to the final step of the polycondensation of ethylene glycol with dimethyl terephthalate [205]. Zinc salt of polydithiophosphate obtained by reaction of phosphorus pentasulfide with 4-substituted anisole was tested as AO in lubricating oils and greases. 

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