sodium sulfate in water ZrO(NO3)2*2H2O dissolved in twice distd. water and neutralized by 2 M NaOH until pH 10 was stable for 5 min; hydrogel sepd. and aged for 20 h at80°C in 0.5 M Na2SO4; hydrogel sepn.: ppt. sepd. by centrifugation, triply washed by water decantation and centrifuged for 5 min at 2000 rpm; aged sample dried for 7 days in vac. desiccator under pressure of 50 kPa over pelletized alkali;thermal anal.;
参考文献
Pechenyuk; Matveenko; Semushin
Russian Chemical Bulletin, 2001 , vol. 50, # 9 p. 1582 - 1588
1: ibanic acid chloride With n-ethyl morpholine; orthophosphorus acid in chlorobenzene T=50 - 80°C; 3.33333 h; 2: With water in chlorobenzene 4 h; Heating / reflux; 3: sodium hydroxide With n-ethyl morpholine in water T=80°C; pH=4.3 - 4.4;
silver nitrate in water byproducts: Ag, H2; vigorous evolution of H2 in presence of AgNO3;;
参考文献
Loew
Ber., 1887 , vol. 20, p. 144 - 144
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Loew
Ber., 1888 , vol. 21, p. 270 - 270
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Gmelin Handbook: Na: MVol., 54, page 237 - 239
