British Abstracts: Pure chemistry and physiology. ser. A1929 |
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Trang 55
... prepared by debromination of 4 : 6 - dibromo - m - xylene - 2 - sulphonic acid ( Jacobsen and Weinberg , A. , 1879 , 61 ) . It was also separated from the mother - liquors of the 4 - sulphonic acid prepared by sulphonation of m - xylene ...
... prepared by debromination of 4 : 6 - dibromo - m - xylene - 2 - sulphonic acid ( Jacobsen and Weinberg , A. , 1879 , 61 ) . It was also separated from the mother - liquors of the 4 - sulphonic acid prepared by sulphonation of m - xylene ...
Trang 185
... prepared . It was then found that the trans - compounds were in all cases easily esterified , but that the cis - compounds were esterified not at all or only very slowly under the usual conditions . This accords with the similarity of ...
... prepared . It was then found that the trans - compounds were in all cases easily esterified , but that the cis - compounds were esterified not at all or only very slowly under the usual conditions . This accords with the similarity of ...
Trang 313
... prepared by heating triaminoresorcinol hydrochloride with phthalic anhydride in an atmosphere of carbon dioxide , gives , when treated with aqueous potassium hydroxide , styphnaminotriphthalic acid , 4 ( CO , H • CH_CO NH • ) , C , H ...
... prepared by heating triaminoresorcinol hydrochloride with phthalic anhydride in an atmosphere of carbon dioxide , gives , when treated with aqueous potassium hydroxide , styphnaminotriphthalic acid , 4 ( CO , H • CH_CO NH • ) , C , H ...
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Thuật ngữ và cụm từ thông dụng
A. A. ELDRIDGE absorption acetic acid acetic anhydride acetone acetyl action activity alkali aluminium Amer ammonia ammonium amount anhydride aqueous solution atoms bands barium benzene Biochem Biol bromide C. R. HARINGTON calcium carbon dioxide catalyst Chem CHEMICAL ABSTRACTS Chim chloroform coefficient colloidal colour compound Compt concentration constant containing converted copper corresponding crystals curves decomp decomposition decrease derivative determined dextrose dilute effect electrolytes electrons ester ether formation formed gives heated hydrate hydrochloric acid hydrogen chloride hydrolysis increase iodide iodine ionisation ions ketone liquid magnesium measured mercury metal method methyl alcohol mixture molecular molecules N. M. BLIGH nitrate nitrogen obtained oxide oxidised oxygen peroxide phenyl phosphate Physik potassium hydroxide precipitated prepared presence pressure Proc protein pyridine reaction reduced rend S. K. TWEEDY salts silver sodium hydroxide sols soluble spectra spectrum substance sulphate sulphide sulphuric acid temperature vapour velocity wave-length whilst X-ray yields Zentr zinc