Journal of Chemistry / 2013 / Article / Tab 2

Research Article

Determination of the Ionization Constants of Some Benzoyl Thiourea Derivatives in Dioxane-Water Mixture

Table 2

Ionization constants determined by potentiometric method in 50% dioxane-50% water (v : v) mixture at °C ( = 0.10 M NaCl) of some benzoyl thiourea derivatives ( ).

Group NoSample NoCodeCompoundsBEST

I14-H_PhN, N-diphenyl- -benzoylthiourea
24-H_EtN, N-diethyl- -benzoylthiourea
34-H_PrN, N-di-n-propyl- -benzoylthiourea
44-H_BuN, N-di-n-buthyl- -benzoylthiourea

II54-Cl_PhN, N-diphenyl- -(4-chlorobenzoyl)thiourea
64-Cl_EtN, N-diethyl- -(4-chlorobenzoyl)thiourea
74-Cl_PrN, N-di-n-propyl- -(4-chlorobenzoyl)thiourea
84-Cl_BuN, N-di-n-buthyl- -(4-chlorobenzoyl)thiourea

III94-Br_PhN, N-diphenyl- -(4-bromobenzoyl)thiourea
104-Br_EtN, N-diethyl- -(4-bromobenzoyl)thiourea
114-Br_PrN, N-di-n-propyl- -(4-bromobenzoyl)thiourea
124-Br_BuN, N-di-n-buthyl- -(4-bromobenzoyl)thiourea

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