Abstract
The stability constants of lead acetato conplexes were evaluated in various ionic strengths (2.00, 1.00, and 0.75), and at various temperature (15, 20, 25, 30, and $35^{\circ}C$), respectively, by the polarographic and potentiometric method of which Hume and Leden had described. The existence of three complex ions, $PbAc^+$, $PbAc_2$, and $PbAc_3^-$ have been shown in the range of concentration of 0~0.8 mole acetate ion. Referring to values obtained, we have derived the following empirical formula with the stability constant (Kijk), ternperature (Tk) and ionic strength (${\mu}j$). log Kijk = (Ai/${\mu}j^3$+ Bi) / Tk + Ci/${\mu}j^3$ + Di . The deduced and observed stability constants are matched in 5% for the K, and $K_3$, and 20% for the $K_2$.
NaAc와 HAc로 된 緩衝溶液에서 납의 mono di, tri, Acetato Complexes의 安定度常數를 이온强度 2.00, 1.00, 0.75, 그리고 溫度 $150^{\circ}C$, $20^{\circ}C$, $25^{\circ}C$, $35^{\circ}C$에서 Leden의 電位測定法으로 測定하고, $15^{\circ}C$에서는 Hume과 DeFord의 Polarographie Method로서도, 아울러 測定比較하였다. 安定度常數(Kijk)와 이온强度(${\mu}j$), 그리고 溫度(Tk) 사이에 다음과 같은 關係가 있음을 알았다. log Kijk = (Ai/${\mu}j^3$+ Bi) / Tk + Ci/${\mu}j^3$ + Di