On charcoal the argentiferous glass becomes at first grey from
the reduced metal, but afterwards, when the silver is collected
into a bead, it becomes clear and colorless.

Behavior with Mic. Salt on Platinum wire

in the oxidizing flame.

Both the oxide and the metal afford a yellowish glass, which,
when containing much oxide becomes opaline, exhibiting a yellow
color by daylight and a red one by artificial light.

in the reducing flame.

As in borax.

* * * * *


17. Oxide of Platinum, PtO^{2}.
18. Oxide of Palladium, PdO^{2}.
19. Oxide of Rhodium, R^{2}O^{3}.
20. Oxide of Iridium, Ir^{2}O^{3}.
21. Oxide of Ruthenium, Ru^{2}O^{9}.
22. Oxide of Osmium OsO^{2}.

Behavior with Borax on Platinum wire

in the oxidizing flame.