Thermodynamic Properties of Transfer for Tetraphenylarsonium Tetraphylborate from Water to n—Alkanols

Solubilities of tetraphenylarsonium tetraphenylborate(Ph4AsB-Ph4) in water,methanol,ethanol, 1-propanol,1-butanol,1-pentanol,1-hexanol and 1-octanol at T=293.2,298.2,303.2 and 308.2 K have been determined by spectrophotometry,The standard transfer Gibbs energy (△trG^0w→s) and entropy (△trS^0w→s) of Ph4AsBPh4 from water to the n-alkanols at temerature from 293.2 K to 308.2 K have been obtained.Fur-thermore,the contribution of microscopic interaction to the standard Gibbs energy of transfer for Ph4AsBPh4 was calculated and discussed,The results show that the effect of hydrophobic inderaction of Ph4AsBPh4 on its transfer process is the most im-portant factor .According to the thermodynamical principle,the transfer process of Ph4AsBPh4 from water to the n-alkanols is the entropy dominanted.

Thermodynamic Properties of Transfer for Tetraphenylarsonium Tetraphylborate from Water to n-Alkanols

Solubilities of tetraphenylarsonium tetraphenylborate (Ph₄AsB‐Ph₄) in water, methanol, ethanol, 1‐propanol, 1‐butanol, 1‐pentanol, 1‐hexanol and 1‐octanol at T = 293.2, 298.2, 303.2 and 308.2 K have been determined by spectrophotometry. The standard transfer Gibbs energy (Δ_tr‐G⁰_w‐s) and entropy (Δ_tr‐G⁰_w‐s) of Ph₄AsBPh₄ from water to the n‐alkanols at temerature from 293.2 K to 308.2 K have been obtained. Furthermore, the contribution of microscopic interaction to the standard Gibbs energy of transfer for Ph₄AsBPh₄ was calculated and discussed. The results show that the effect of hydrophobic interaction of Ph₄AsBPh₄ on its transfer process is the most important factor. According to the thermodynamical principle, the transfer process of Ph₄AsBPh₄ from water to the n‐alkanols is the entropy dominated.