Phenylarsonic acid changes the potential at the free surface of 0.1 M KC1 from -23 to -275 mV and the surface tension from 72.3 to 67.7 dy/cm over the concentration range from 0.01 to 0.1 M. o-and p-methyl derivatives of this acid are far more active; they decrease the potential to about -600 mV at
Influence of isomeric halogen derivatives on surface potential and surface tension of aqueous solutions
✍ Scribed by B. Kamieński; I. Kulawik; J. Kulawik
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 336 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0013-4686
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
5-bromosalicylic, 5-sulphosalicylic and 3-nitrosalicylic acids increase the negative potential of the air/water boundary. The first compound is the most active; it changes the potential by 270 mV at a concentration of 0@03 M (pH 2.1) and decreases the surface tension to 70.2 dyn/cm. The increase of
Ortho isomers such as ortho-hydroxybenzoic or ortho-fluorobenzoic acids decrease the electric potential difference between air and aqueous solutions. When the acids are neutralized ions are built in and withdrawn into the aqueous phase, and the potential returns to the naturalsurface potential of wa
The mechanism controllii rapid aging of surfaces of aqueous solutions is considered with reference to the variation of dynamic surface tension with time. The Ward-Tordai and Sutherland results for the diffusion-controlled mechanism are critically discussed and a new surface model is introduced which