The below-mentioned general formula which is the aromatic amine derivative and the doping material for the organicityA aromatic amine derivative having an specific structure having a diphenyl amino group, and two or more of substituent bonding to benzene ring thereof, and in an organic ...
equations salt analysis acids, bases, and salts benzene organometallic compounds atomic number and mass number more maths pythagoras theorem prime numbers probability and statistics fractions sets trigonometric functions relations and functions sequence and series multiplication tables determinants and matrices ...
Since the general electronic configuration of the chalcogens is ‘ns2np4’, they can obtain a stable electronic configuration by gaining two electrons or participating in covalent bonding. When they gain 2 electrons, the general formula of the ion formed is M2-(where M denotes a chalcogen). Th...
The ether product melted at a temperature of about 70°-71° C. and was soluble in each of the solvents acetone, benzene, ethylene chloride, kerosene, and isopropyl ether. It has the formula, Example 2 A mixture prepared by dissolving 85 grams (0.5 mol) of meta-xenol in a solution of...
PP is a polymer formed by addition polymerization ofpropylene. It is a white waxy material with a transparent and light appearance. The chemical formula is (C3H6)n, the density is 0.89~0.91g/cm3, It is flammable, with a melting point of 189ºC, softening at about 155ºC, and ...
Factory Supply Linear Alkyl Benzene Sulphonic Acid 96% Chemical LABSA Linear US$900.00-1,200.00 / Ton High Quality 18% 19% 28% 33% 40% EVA Resin Granules US$1,000.00-1,200.00 / Ton Virgin LDPE 2426h 2426K in LDPE Granules Low Density ...
摘要: PROBLEM TO BE SOLVED: To readily and efficiently produce 1-bromo-3-fluorobenzene by brominating a fluorobenzene in the presence of a catalyst, isomerizing the brominated body in the presence of a (halogenated) aluminum, and reacting the obtained product with a specific benzene derivative....
Definitionsofcompoundsmayincludechemicalformulae,e.g. benzene…:acolorlessvolatileflammabletoxicliquidaromatichydrocarbonC6H6… Definitionsofnamesofplantsandanimalsmaycontaintaxonomicinformation,e.g. cockroachn…:anyofanorder(Blattaria)ofchieflynocturnalinsectsincludingsomethataredomesticpests.Introduction(cont.) To...
20020019559Hydrogenation of benzenepolycarboxylic acids or derivatives thereof using a catalyst containing macropores2002-02-14Brunner et al. 6274756Esters, ethers, and compositions comprising them2001-08-14Caers et al. 5095135Process for the preparation of high-purity naphthalenecarboxylic acid esters1992...
This invention relates to insecticidal compositions, and particularly to the use of benzyl sulfide as the active principle thereof. The object of the invention is to provide improved insecticidal compositions of general application which can be used in low concentrations to control pests without...收藏...