A series of poly-aluminum-chloride-sulfate (PACS), which have different basicities (γ) and Al3+/SO42- molar ratio, have prepared and dried at 105℃ and 65℃, r
Elemental analysis of iron ore samples and first industrial iron production prepared by the Egyptian Iron and Steel Company of Helwan near Cairo were determined
It is discovered that there is the concentrative phenomenon of relative content ratios of Cu, Pb and Zn in soil by studying their parageneous association in soi