Factors determining the consumption of ruthenium during electrosynthesis of sodium hypochlorite with the use of ruthenium oxide-titanium anodes

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:7194443

Klement'eva, V S; Kubasov, V L; Lambrev, V G; Uzbekov, A A

The authors studied the rate of destruction of the active coating as a function of the electrolysis conditions during electrochemical production of sodium hypochlorite. Corrosion tests were carried out on specimens made by the thermochemical method, in an electrochemical cell without a diaphragm; the method used was based on neutron activation analysis. It was shown that losses of ruthenium can be lowered by conducting the electrolysis at low temperatures, higher current densities, and moderately low hypochlorite concentrations. However, the increase of current density may raise the ROTA potential above the critical value, when rapid anode failure is possible. It was also shown that under conditions such that the critical ROTA potential is not reached sodium hypochlorite solutions of fairly high concentrations can be obtained with a low comsumption of ruthenium, which is not possible with the use of many other anode materials.

• OSTI ID: 7194443
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 58:3,PT.2; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ANODES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
CORROSION
DIAGRAMS
DISSOLUTION
ELECTROCHEMICAL CORROSION
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ELEMENTS
HYDROGEN COMPOUNDS
HYPOCHLOROUS ACID
INORGANIC ACIDS
KINETICS
METALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
QUANTITY RATIO
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
RUTHENIUM
RUTHENIUM COMPOUNDS
RUTHENIUM OXIDES
SYNTHESIS
TITANIUM
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YIELDS