acetic acid in acetic acid byproducts: HCl; heating under reflux; filtered, washed several times with dry acetic acid, dried under reduced pressure at 70°C;

in melt mixture is heated in a sealed glass ampoule at 180°C for 2 days; crystn. for several days;

in acetic acid byproducts: HCl; heating LaCl3 in CH3COOH under reflux; filtration, washing with CH3COOH, drying in vac. at 70°C for 6 h;

in ethanol byproducts: NaCl;

boiling;

in water byproducts: La(NO3)3; investigation of equilibrium at 25°C;;

in water using double drop method; aq. solns. of La acetate and NaF added dropwise with stirring to H2O at 20°C; stirred for 30 min; ppt. sepd. by centrifugation; washed with H2O; dried in air; LaF3 nanoparticles obtained; detd. by X-ray powder diffraction;