Analytic Study of the Role of Namal in Toombak

Abstract

The two natron samples were collected from different location of different environments .The samples were analysed qualitatively and quantitatively by standard methods of analysis to determine the chemical composition and the concentration of each component . The effect of natron on chemical structure of Toombak was studied. The analytical techniques used in this study are:- Flame Emission spectroscopy which was used to determine sodium and potassium ions, content and the results was 8.4%,0.45%,(sample A) 14.33% ,2.03% (sample B) respectively. Volumetric analysis was used to determine the carbonate and bicarbonate the results obtained were 8.70%, 6.25% (sample A)، 22.5%, 10.67% (sample B) respectively. While total alkalinity of sample (Omdurman market used for toombak prepared) was found to be 2800 . The percentage of silica was determined gravimetrically the result obtained 53.20%, 36.87% respectively. Matter insoluble in water and insoluble in acid was determined for the sample (Omdurman market used for toombak preparation) and it was found to be 60.07%, 63.55% respectively. Finally the pH of the two samples of natron was found 9.8 and three toombak samples were found 5.6 to 5.7.