Osmose reverse

There have been prepared one-component solutions of ascorbic acid and paracetamol, two-component solutions of paracetamol with ascorbic acid (relation of dissoluted compounds in solutions is 1 1), in the following concentrations of disso-luted substances (mole/1) 10-, 10- 10-, 10 ()- , 10-", 10- IQ-, 10- , 10- , 10-, and 10 Water cleansed by reverse osmosic was used as solvent. Solutiorrs were prepared by successive dilution by 100 times using classical methods. Irritial solution was O.IM one. Before choosing of solution portion for the following dilution the sample was subjected to taking arrtilogs. 

The example again shows that cross-industrial know-how is absolutely necessary, because ion exchangers, reverse osmose systems or desalination plants have to be integrated. 

If a liquid is forced through a capillary tube or a porous diaphragm by a pressure difference i7, which is the reversal of electro-osmose, a potential difference X is set up between the ends of the tube, as was observed by G. Quincke, and Helmholtz (1879, see above) found X—IIl Dl irr L (4), where is the zeta-potential and L the length of the tube. The measured effect is in general agreement with the equation. The converse of electrophoresis is the potential difference set up when particles fall through a liquid. The origin and structure of the double layer assumed have been much discussed. 

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