bovine serum albumin in water Kinetics; pH adjusted to 6.0; 25°C;

water in not given pptn. from ammoniacal soln. of CaCl2 with excess of NH4-oxalate in coldness;;

anhydrous trisodium citrate in water CaCl2 soln. added to sodium citrate soln., stirred at 23°C; sodium oxalate soln. added, stirred for 10-15 min (or sodium oxalate soln. added rapidly to mixt. of CaCl2 soln. and sodium citrate soln.; stirred for 10 min at 23°C); ppt. filtered off; washed repeatedly with distilled water; dried to constant weight at ambient temp. over CaCl2 and in vac.; DTA; SEM;

urea in not given mixing Ca-salt and urea solns. with equimol. oxalic acid/urea soln. (urea concn. up to 1.5 M) at 0. 5, or 25°C; ppt. air drying below 25°C: XRD, TG, DTG;

in H2O pouring of portions aq. CaCl2 son. into glass ampoule; placing in calorimeter filled with soln. containing Na2C2O4; placing in thermostat; keeping for 30-50 min at 25°C; pptn.;

in not given addn. of a cold satd. soln. of oxalic acid to a Ca(2+) soln.;;

in not given shaking mixture of 4 volume parts 0.16 m CaCl2 soln. and 1 volume part 0.25 m (NH4)2C2O4 soln. in 5 percent HCl soln. until crystn.;;

in not given pptn. from 0.01-0.02 m solns.;;