The mean activity cofficient of 5,10,15,20-tetrakis (P-methoxyl-O-sulfophenyl) porphyrin sodium indilute aqueous solution has been determined in the modalityrange
A new method for preparing highly pureand viscous organic smectite has been investigated and devel-oped.The key feature of the method is the use of a chemicalai
Structures and hydration activities of ferro-aluminates (Ca2Fe2-xAlxO5,x = 0.0. 57 and 0. 72) of cement minerals are studied by SCF-DV-Xa method. one of the mol