The Elements of Blowpipe Analysis

by Frederick Hutton Getman

Before the Bp. on Ch. with Na₂CO₃. Easily reduced to metallic bismuth. Yellow bead brittle, but less so than antimony.

In ignition tube with Na₂CO₃ and Ch.____

In flame on platinum wire____

With borax bead on platinum wire. In O. F. small quantity dissolves to a clear yellow glass, which becomes colorless when cold.

With Co(NO₃)₂____

5. Cadmium, CdO.—Before the Bp. on Ch. Gives a coating on the coal. Reddish-brown when cold. Very volatile.

Before the Bp. on Ch. with Na₂CO₃. Readily reduced. The metal volatilizes easily, giving the characteristic coating.

In ignition tube with Na₂CO₃ and Ch.____

In flame on platinum wire____