I think PGM's like Ir, Os... are dissolved like this.
Should it be melted, or can be done in water?
I've heard that people "think" that Au(OH)3 dissolves in bases forming "probably" soluble aurate. Nitrate acts as oxidant, and base as dissolver (just
like for Al)...
Can Sodium Peroxide or Superoxide (both easy to make, just heat oxide or carbonate or hydroxide) be used instead of nitrate?
I prefer to use bases instead of acids! And also don't want cyanides. Because bases dissolve more elements than acids forming for example (with oxides
or hydroxides) soluble salts (e.g. Germanate, Silicate, Aurate, Zirconate, Hafnate...). Also I would use bases for getting elements from rocks or
soil, because acid's can*t do anythiing (silica blocks reaching other chemicals like Na, K, Ca, Mg, Fe, Al...).
[Edited on 30-5-2015 by AndroidOS]hissingnoise - 30-5-2015 at 01:54
