With borax bead on platinum wire. In O. F. green when hot, blue when cold.
With Co(NO3)2____
9. Iron, Fe2O3.—Before the Bp. on Ch. In O. F. unchanged. In R. F. becomes black and magnetic.
Before the Bp. on Ch. with Na2CO3 Reduced to a metallic powder, magnetic.
In ignition tube with Na2CO3 and Ch.____
In flame on platinum wire____
With borax bead on platinum wire. In O. F. red while hot, yellow when cold.
With Co(NO3)2____
10. Lead, PbO.—Before the Bp. on Ch. Easily reduced to the metal, bead very malleable. Coating yellow, surrounded by white ring.
Before the Bp. on Ch. with Na2CO3. Instantly reduced. Coats the Ch. upon further blowing.