Figure 1.
The graph presents the relationship between mass loss percentage and temperature ranging from 0 to 1000 degrees Celsius. The vertical axis measures mass loss in percentage, beginning at 100 and descending to 82 percent. The horizontal axis indicates temperature in degrees Celsius, starting at 0 and increasing up to 1000. Multiple data series, labelled B 1, B 2, C 1, C 2, C 3, C 4, and D 1, are represented as distinct coloured lines. The graph contains three boxed annotations highlighting specific phases, Dehydration around the 0 to 200 degrees Celsius range, Iron hydroxide around the 200 to 400 degrees Celsius range, and Dehydroxylation from 400 to 600 degrees Celsius. The design facilitates easy differentiation of each series and highlights significant junctures in mass loss.Thermogravimetric analysis (TGA) curves of raw clays