medical stone for water treatment

La description

1.Medical stone is one kind of compound mineral or officinal rock with inno-cuous and

   innocuity, with neutral or acidic magma rock. 

2.Besides common element, it's chemical component contains Ca, Mg, Si, Al, Fe, K, Na 

   also a few of rare element, lanthanon, radioelement.

3. Medical stone has the ability of absorption, dissolving, adjusting pH capability,

   biology activith and mineralized quality, it can absorb metal hydronium in the water,   

   for it contains *5% of AL**3, it is the typical amphoteric oxide which will react when

   meet alkali in the liquor to reduce pH, and will react when meet acid in the liquor to

   increase pH, it's has bidirectional adjustment to pH, after being dunked, medical stone

   will dissolve out usual element K, Na, Ca, Mg, P, and rare element Si, Fe, Zn, Cu, Mo,

   Se, Mn, Sr, Ni, V, Co, Li, Cr, I, Ge, Ti and so on.