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Trang 45
Water ( 10 ml ) was added to the filtered solution , and the mixture was left to stand for 2-3 d . The resulting pale - blue crystals were separated , washed with water , and dried in a vacuum drying oven over Mg ( ClO4 ) 2 at ~ 20 ° C ...
Water ( 10 ml ) was added to the filtered solution , and the mixture was left to stand for 2-3 d . The resulting pale - blue crystals were separated , washed with water , and dried in a vacuum drying oven over Mg ( ClO4 ) 2 at ~ 20 ° C ...
Trang 445
obtained is used to prepare the titrant , by mixing it with a measured quantity of a standard solution of acid . The solution being studied and the titrant are then diluted to give the same metal concentration in the two solutions .
obtained is used to prepare the titrant , by mixing it with a measured quantity of a standard solution of acid . The solution being studied and the titrant are then diluted to give the same metal concentration in the two solutions .
Trang 735
containing 4.6 x 10-5 , 3.4 x 10-5 , 2.6 x 10-5 , 2.3 x 10-5 , 1.6 x 105 , or 1.0 × 10-5 mol PEI , the solutions were mixed , and the UV spectrum was immediately recorded . The spectrum of the reference solution , which had been ...
containing 4.6 x 10-5 , 3.4 x 10-5 , 2.6 x 10-5 , 2.3 x 10-5 , 1.6 x 105 , or 1.0 × 10-5 mol PEI , the solutions were mixed , and the UV spectrum was immediately recorded . The spectrum of the reference solution , which had been ...
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SYNTHESIS AND PROPERTIES OF INORGANIC COMPOUNDS | 1 |
Volume 36 | 4 |
LnO bond lengths in lanthanide compounds with a coordination number of six 15 29 | 15 |
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acid addition analysis angles anion apparently aqueous atoms bands bond bridging calculated carbonate carried cation characteristic Chem chemical Chemistry complexes components composition compounds concentration constant containing coordination corresponding crystallisation crystals curves decomposition decrease dependence described determined dimer distances effect electron energy English translation equilibrium experimental extraction Figure formation formed given gives groups heating hydrogen increase indicate infrared Inorg interaction ions Khim Khimii lanthanide leads ligands lines lower magnetic mass measured metal metal-metal method mixture molecules Moscow Neorg nitrate observed obtained oxide oxygen parameters phase points positions possible precipitate prepared present properties published range ratio reaction References region relative respectively salts shows similar solid solubility solution space group specimens spectra spectrum stability structure studied Table takes temperature thermal translation in Russ values vibrations wavenumbers X-ray diffraction