It's soluble in acid and slightly soluble in water but insoluble in ethanol orether. 易溶于酸,微溶于水,不溶于乙醇和乙醚. 期刊摘选 The effect of catalyst, reaction temperature, reaction pressure on conversion and purity vinyletherwas discussed. ...
An ester is a chemical compound derived from an acid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides are fatty acid esters of glycerol; they are...
mineral acid esters (acyclic compounds)nitrationFor Abstract see ChemInform Abstract in Full Text.doi:10.1002/chin.200241073N. V. SvetlakovInorg. Chem. Dep., Kazan State Technol. Univ., Kazan 420015, RussiaV. G. NikitinInorg. Chem. Dep., Kazan State Technol. Univ., Kazan 420015, RussiaF....
1.(Elements & Compounds) Also called:diethyl ether,ethyl etherorethoxyethanea colourless volatile highly flammable liquid with a characteristic sweetish odour, made by the reaction of sulphuric acid with ethanol: used as a solvent and anaesthetic. Formula: C2H5OC2H5 ...
Large-scale addition of too-cold nitrating acid to benzene without agitation later caused an uncontrollably violent reaction to occur when stirring was started. The vapor-air mixture produced was ignited by interaction of benzene & nitric acid at 100-170 deg C & caused an extremely violent ...
Ether is produced by the dehydration of ethanol using sulfuric acid: 2CH3CH2OH +2H2SO4→ (CH3CH2)2O + H2SO4+ H2O.the temperature of the reaction is carriedout at about 140°C to control for unwanted products.the volatile ether is distilled from themixture. Ether can also be prepared by...
The reaction time is 5 hour(s). The yield is about 39%. Uses of Hexaethyleneglycol monomethyl ether: it can be used to produce toluene-4-sulfonic acid 2-[2-(2-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethyl ester. This reaction will need reagent triethylamine and ...
Peroxides (detected by the liberation of iodine from weakly acid HCl solutions of 2% KI) can be removed by shaking 1L of ether with 5-10mL of a solution comprising of 6.0g of ferrous sulfate and 6mL conc H2SO4 and 110mL of water, with aqueous Na2SO3, or with acidified NaI, water, ...
Concentrated sulfuric acid will degrade the material over time. Strong oxidizing agents like nitric acid and halogenated organic solvents like chlorobenzene will swell and degrade the polymer. PEKK is extremely hydrolytically resistant. Figure 8.28 shows the excellent chemical resistance of PEEK to acids,...
The above reaction proceeds readily in the presence of a catalytic amount of a strong acid catalyst. For the purposes of this invention a catalytic amount is defined as about 1 to about 25 mol percent of the strong acid based on the aromatic hydrocarbon. ...