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1. 导出两相滴定法测 pK_(αβ)和 K_d 的计算公式.2. 测定了1-苯基-3-甲基-4-苯甲酰吡唑啉酮-5的 pK_α及其在十六种溶剂中的 pK_(αβ)和K_d 值.3. 所得结果用 Hildebrand 的非电解质溶液理论进行讨论,指出对于所讨论的大多数溶剂,下列公式成立:log K_d=log(1000d/M)+K-V_(HA)/4. 575T(δ-δ_(HA))~2对所研究的吡唑啉酮来说,符合下列半经验公式:log K_d=log(1000d/M)+2. 68-0. 180(δ-10. 3) ~2pK_(αβ)=log(1000d/M)+6. 78-0. 180(δ-10. 3) ~2上式中 K_α和 K_(αβ)是分配常数和两相电离常数,d、M、δ分别表示有机溶剂的密度、分子量和溶度参数.
1. Derived the two-phase titration pK_ (αβ) and K_d the formula.2.Determination of 1-phenyl-3-methyl-4-benzoylpyrazolone -5 pK_α and its determination in the sixteen The pK_ (αβ) and K_d values in the solvents were determined.3 The results obtained are discussed in Hildebrand’s non-electrolyte solution theory and indicate that for most of the solvents in question, the following holds: log K_d = log (1000d / M) + K -V HA / 4.575T δ-δ HA For the investigated pyrazolones, the following semi-empirical formula is found: log K d = log (1000d / M) +2 68- 0. 180 δ-10 3 ~ 2 pK αα = log 1000 d / M + 6. 78-0. 180 δ-10. 3 In the above formula, Kα and Kααβ are assigned Constants and two-phase ionization constants, d, M, δ represent the density, molecular weight and solubility parameters of the organic solvent, respectively.