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1.在水杨酸-甲基异丁基酮(或异戊醇)体系中,当水杨酸浓度为0.25M—1.2M,PH=2.0—5.0时,钇以Y(HA)_3的形式进入有机相,甲基异丁酮或异戊醇均为惰性溶剂.水相中存在Y(HA)_n~(-(n-3))(n=0,1,2,3)的各级络合物.并测定了它们在25℃,0.25M NaClO_4中的络合物稳定常数,以及Y(HA)_3在甲基异丁基酮-水和异戊醇-水体系中的分配常数. 2.在水杨酸-甲基异丁基酮或异戊醇)体系中,当水杨酸浓度为0.25—1.2M,pH=2.0—6.0时,镧以La(HA)_3,La(HA)_3(H_2A)的形式进入有机相,甲基异丁基酮或异戊醇均为惰性溶剂.水相中有La(HA)_n~(-(n-3)),La(OH)_n~(-(n-3)),La(HA)_n(OH)_(N-n)(n=0,1,2,3)各级络合物存在.并测定了它们在25℃,0.25M NaClO_4时,各级络合物稳定常数及La(HA)_3,La(HA)_3(H_2A)在甲基异丁基酮-水体采中的分配常数.
1. In the salicylic acid-methyl isobutyl ketone (or isoamyl alcohol) system, when the concentration of salicylic acid is 0.25M-1.2M, PH = 2.0-5.0, yttrium is present in the form of Y (HA) Into the organic phase, methyl isobutyl ketone or isopentyl alcohol are inert solvents.Each phase of Y (HA) _n ~ (- (n-3)) (n = 0,1,2,3) exists in the aqueous phase Their complex stability constants at 25 ℃ and 0.25M NaClO_4 were determined, and the partition constants of Y (HA) _3 in methyl isobutyl ketone - water and isoamyl alcohol - water system were determined. In the salicylic acid-methyl isobutyl ketone or isoamyl alcohol system, when the concentration of salicylic acid is 0.25-1.2M, pH = 2.0-6.0, La (HA) 3, La ) _3 (H_2A) into the organic phase, methyl isobutyl ketone or isoamyl alcohol are inert solvents.Aqueous phase La (HA) _n ~ (- (n-3)), La (n = 0,1,2,3) La (HA) _n (OH) _ (Nn) exists at 25 ℃, 0.25M NaClO_4, the stability constants of all the complexes and the partition constants of La (HA) _3, La (HA) _3 (H_2A) in methyl isobutyl ketone and water.