Description of experiment
Below follows a plain text transcript of the selected experiment.
Needed compounds:
-----------------
ascorbic acid : C6H8O6
potassium tetrachloroplatinate (II) : K2PtCl4
Class:
------
elem=Pt
redox
Summary:
--------
Platinum (II) can be reduced to metallic platinum fairly easily.
Description:
------------
Add ascorbic acid to a strongly diluted solution of K2PtCl4: The solid
dissolves. No further visible changes.
Heat the liquid: Before the liquid starts boiling, the liquid becomes turbid
and shifts within a few seconds from clear and very light brown to completely
opaque and black. The black solid is finely divided metallic platinum.