Coadsorption Of The Buthyloamine And Dibuthyloamine On Mercury Electrode In Liquid Ammoniate Of Ammonium Nitrate

Category: VI Ukrainian-Polish Symposium

COADSORPTION OF THE BUTHYLOAMINE AND DIBUTHYLOAMINE ON MERCURY ELECTRODE IN LIQUID AMMONIATE OF AMMONIUM NITRATE

A. Persona1, B. Senczyna2, K. Jozwiak3, B. Marczewska1

1Faculty of Chemistry, Maria Curie-Sklodowska University,

Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland

2Department of Chemistry, University of Agriculture,

Akademicka st. 15, 20-950 Lublin, Poland

3Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Medical University, Staszica st. 6, 20-081 Lublin, Poland

Several inorganic salts, in the anhydrous state, absorb gaseous anhydrous ammonia and form a liquid as a result of that process. These products are generally called liquid ammoniates (LA). LA\’s are nonaqueous electrolytes, convenient in laboratory investigations and interesting from technological point of view. LA\’s can be successfully applied in electroplating and in galvanic cells.

The adsorption of organic molecules on the electrode surface plays an important role in the kinetic of electrode reaction. Studies of these processes may be useful in development of practical applications such as electroplating or protection of metal against corrosion. Investigation of surface active properties of solutions containing two surface-active compounds is typical problem from practical point of view because the technical detergents commonly contain, apart from the main component, some additional substances, which often may be surface-active agents. Such investigations are also interesting from theoretical point of view because they provide information on composition of the mixed adsorption layer on the electrode and on mutual interactions of the adsorbed compounds.

The aim of the work was electrochemical investigations of the adsorption process on the dropping mercury electrode (DME) from the solutions containing aliphatic amines in liquid ammoniate of ammonium nitrate (LAAN), in order to propose the mechanism of this process and establish the composition of the adsorption layer.



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