The electrodialytic water dissociation process employing bipolar membranes has been used successfully for obtaining acids and alkalies from salts. Earlier reports by us described the preparation of bipolar membranes and their applications in converting sodium sulphate into sulphuric acid and sodium
Redoxokinetic titration of hydrochloric, acetic and phosphoric acid with sodium hydroxide
β Scribed by K.K. Janardhanan Pillai; A.S. Lakshmanan; C.V. Suryanarayana
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 399 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0013-4686
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β¦ Synopsis
The redoxokinetic technique has been used for titrating (i) a mixture of hydrochloric and acetic acids against sodium hydroxide and (ii) orthophosphoric acid against sodium hydroxide; the results compare favourably with the potentiometric method. It is however necessary to use a high applied voltage, > 500 mV, in the redoxokinetic titrations; lower voltages do not give significant infiexions. R&sum&La technique redoxo-cin&ique est utilisQ aux titrages (1) d'un melange d'acide chlorhydrique et d'acide ac&ique par la soude (2) de l'acide orthophosphorique par la soude. LR9 r&ultats sont en bon accord avec la methode potentiom&rique. I1 est cependant n&essaire, pour les dosages r6doxo-cinbtiques, d'imposer une tension elev& (> 500 mV): pour des tensions plus basses, on n'obtient pas d'infiexions sign&at&s. Zusammeafassrmg-Mit einer redoxokinetischen Methode wurden ein Gemisch von Salzs%ure und Essigs&ue sowie Orthophosphorsaure gegen Natronlauge titriert. Die Ergebnisse stimmen ziemlich gut mit potentiometrischen Messungen Uberein. Es muss jedoch mit grossen Potentialen (~500 mV) gearbeitet werden, kleinere Potentiale ergeben keinen signifikanten Umschlagspunkt.
π SIMILAR VOLUMES
## Abstract The dissolution of aluminium in hydrochloric acid and sodium hydroxide solutions in the presence of semicarbazide, thiosemicarbazide and sym.diphenylcarbazide as corrosion inhibitors has been studied using thermometric, weightβloss and polarization methods. The three methods gave consis