British Abstracts: Pure chemistry and physiology. ser. A1929 |
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... aqueous acetone to trans - 1 : 4 - dibromo - 2 : 3 - dihydroxycyclo- pentane , m . p . 75 ° ( yield 52 % ) , further oxidised by cold aqueous chromic acid to r - ax ' - dibromoglutaric acid , m . p . 142 ° ( yield 85 % ; cf. Thiele ...
... aqueous acetone to trans - 1 : 4 - dibromo - 2 : 3 - dihydroxycyclo- pentane , m . p . 75 ° ( yield 52 % ) , further oxidised by cold aqueous chromic acid to r - ax ' - dibromoglutaric acid , m . p . 142 ° ( yield 85 % ; cf. Thiele ...
Trang 554
... aqueous solution of boric acid and 50 % potassium hydroxide solution gives the potassium salts of the resulting boric acid complexes , CH10 B.OK , 4H2O and C , H12 > B - OK , 4H2O , respectively . In aqueous solution these salts undergo ...
... aqueous solution of boric acid and 50 % potassium hydroxide solution gives the potassium salts of the resulting boric acid complexes , CH10 B.OK , 4H2O and C , H12 > B - OK , 4H2O , respectively . In aqueous solution these salts undergo ...
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... aqueous sodium selenide ( prepared in situ from hydrogen selenide and alcoholic alkali ) gave cycloselenopentane , b . p . 158 ° / 759 mm . , n 1-5475 , d , 1-424-0-001236t ( mercurichloride , m . p . 175-176 ° ; methiodide , sublimes ...
... aqueous sodium selenide ( prepared in situ from hydrogen selenide and alcoholic alkali ) gave cycloselenopentane , b . p . 158 ° / 759 mm . , n 1-5475 , d , 1-424-0-001236t ( mercurichloride , m . p . 175-176 ° ; methiodide , sublimes ...
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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