The Elements of Blowpipe Analysis

by Frederick Hutton Getman

With borax bead. In O. F. dissolves to a clear yellowish bead, colorless when cold.

With Co(NO₃)₂____

6. Chromium, Cr₂O₃.—Before the Bp. on Ch. No change.

Before the Bp. on Ch. with Na₂CO₃. Cannot be reduced. Soda sinks in Ch. and a green colored mass remains.

In ignition tube with Na₂CO₃ and Ch.____

In flame on platinum wire____

With borax bead. Dissolves slowly but colors intensely. Yellow while hot, green when cold.

With microcosmic salt bead. Colors red when hot, green when cold.

With Co(NO₃)₂____