Apparent molar volumes of some symmetrical tetraalkylammonium bromides in methanol + acetonitrile mixtures at 298.15 K

✍ Scribed by Nirmal Saha; Bijan Das

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 241 KB
• Volume: 89
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/s0167-7322(00)90011-4

✦ Synopsis

The apparent molar volumes of six symmetrical tetraalkylammonium bromides, R4NBr (R = ethyl through heptyl) have been determined in methanol + acetonitrile binary mixtures (containing 0.20, 0.40, 0.60 and 0.80 mole fractions of acetonitrile, x) over the concentration range (I.005 -0.065 mo].kg': at 298.15 K from precise density measurements. Use has been made of the nonthermodynamic, so-called extrapolation method to split the limiting apparent molar volumes into ionic contributions. The results have been interpreted in terms of ion-ion and ion-sol\ ent interactions.