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Research Paper | Chemistry | Saudi Arabia | Volume 5 Issue 2, February 2016

Electric Conductivity of Gum Arabic from Acacia Senegal

Leila Mokhtar

Abstract: Samples of Gum solutions of different concentrations were prepared by dissolved Gum powder in distilled water. The stud emphasized the effects of temperature, distance between capacitor plates, added electrolytes (NaCl) and different concentration of gum solutions on the conductive properties. The electric conductivity was 0.0 mS at lowest concentration and minimum temperature 0.0c, it increased to 0.5 mS when the temperature was increased to 90 c. When the concentration was increased to 0.3 % at 0.0c, the conductivity increased 4.8 mS. The conductivity reached its maximum 19.5 mS at 90c and 0.3 % concentration. The electric current reached its maximum value 8.0 mA at the concentration of 0.3 % at room temperature and 1cm distance between the capacitor plates. The electric current increased with increase in temperature, to reach the maximum 63 mA at 0.3 % concentration and 90c. The electric current passing through the capacitor plates was reported to be 0.0 mA at the lowest concentration at room temperature, regardless of the distance between the two plates. Addition of 2 % concentration of NaCl solution to gum solution of different concentration increased the conductivity, even at the lowest concentration. Increasing NaCl concentration showed proportional increase in the electric conductivity of gum solution.

Keywords: Gum Arabic, conductivity, current, different concentration, temperature

Edition: Volume 5 Issue 2, February 2016,

Pages: 583 - 593