Fb2 Potentiometric Water Analysis, 2E ePub
by Derek Midgley,Kenneth Torrance
|Subcategory:||Engineering and Transport|
|Author:||Derek Midgley,Kenneth Torrance|
|Publisher:||Wiley; 2 edition (September 6, 1991)|
|Fb2 eBook:||1619 kb|
|ePub eBook:||1251 kb|
|Digital formats:||lit txt lit txt|
Midgley, D. & Torrance, Kenneth. Potentiometric water analysis. Midgley, D. and Torrance, Kenneth.
Midgley, D. Australian/Harvard Citation.
It provides, in one single volume, a comprehensive survey of the theoretical and practical aspects of potentiometry and ion-selective electrodes applied to the analysis of water. The first part of the book describes the basic theory of electrodes, the statistical treatment of results, titrimetric methods and general guidance on procedures.
Glass electrodes with linear temperature characteristics are described.
The use of ion-selective electrodes for direct potentiometric water hardness determinations is restricted to relatively soft waters if they are to be competitive with other techniques in terms of uncertainty on the water hardness scale
The use of ion-selective electrodes for direct potentiometric water hardness determinations is restricted to relatively soft waters if they are to be competitive with other techniques in terms of uncertainty on the water hardness scale. The selectivity factorK MgCa Pot must be within . % of unity if a hardness of 10 degrees on the German scale is to be measured to within . degrees in the composition rangecMg:cCa 0. 25 to 25. The expressionK MgNa Pot ·a Na 2, (aMg+aCa) must be less than . 01 if freedom from sodium interference is to be achieved.
Potentiometric methods are based on the measurement of the activity of hydrogen ions in an acid–base system of. .To calibrate the potentiometric system, the already described two-point procedure is commonly used.
Potentiometric methods are based on the measurement of the activity of hydrogen ions in an acid–base system of known ratio between basic and acidic forms of the compound. 3 Usually, the pH is measured through a well-calibrated glass combination electrode, over a concentration range of . 05–0. 05 M and in 2–12 aqueous pH range. The pKa is conveniently determined by a titration of the basic or acidic compound with a standardized strong acid or base.
Personal Name: Midgley, D. (Derek). Personal Name: Torrance, Kenneth. Rubrics: Poteniometry Water Analysis. Download now Potentiometric water analysis Derek Midgley and Kenneth Torrance. Download PDF book format. Download DOC book format.
2 POTENTIOMETRIC TITRATIONS
2 POTENTIOMETRIC TITRATIONS. General Principles The Nernst equation tells us that a measurable quantity - voltage or potential - is related to the concentration of species in solution. In many cases, the measured potential is due to a number of species, and hence the concentration of one can be difficult or impossible to determine. Why Choose a Potentiometric Titration? Compared to titrations using an indicator to detect the endpoint, potentiometric titrations are:, more expensive – you need a stirrer and bar, electrodes, and a voltmeter, slower to set up – making sure the electrodes are correctly in place and functioning properly
Potentiometric titration is a technique similar to direct titration of a redox reaction. It is a useful means of characterizing an acid.
Potentiometric titration is a technique similar to direct titration of a redox reaction. No indicator is used; instead the potential is measured across the analyte, typically an electrolyte solution. To do this, two electrodes are used, an indicator electrode (the glass electrode and metal ion indicator electrode) and a reference electrode.