From preparation, to have all 4 substances substances which definitions are used to provide heat for 30 minutes, 1, 2, and 3 hours of placing it on the Hotplate. After that, have a drying and filtration by burned with a. Furnaces-----by solution 1, 2, 3, and 4 will burn at 400 C 0 times 1 time 2 hours and hours, and will be split into two individual solution solution solution so there will be 8. </p > Finally, to put each solution to learn by means of XRD SEM to study morphology of the surface of the material to absorb heavy metals as well.
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