Part 46 (1/2)

(4) in forceps. --

(5) in borax. The oxide formed upon charcoal gives the bis.m.u.th reactions.

(6) in mic. salt. As in borax.

(7) with carb. soda. --

(8) Special reactions. --

Mineral. Bis.m.u.thine

Formula. BiS.

Behavior

(1) in gla.s.s-bulb. --

(2) in open tube. Fuses with ebullition and gives of S and SO^{2}.

(3) on charcoal. Fuses with much spirting and in the reducing flame yields a metallic bead and incrusts the charcoal with oxide.

(4) in forceps. --

(5) in borax. The oxide obtained upon charcoal gives the bis.m.u.th reactions.

(6) in mic. salt. As in borax.

(7) with carb. soda. As alone on charcoal. The fused alkali gives the sulphur reaction on silver.

(8) Special reactions. --

Mineral. Bis.m.u.thblende

Formula. [...Bi=]^{2}[...Si]^{3}.

Behavior

(1) in gla.s.s-bulb. Turns yellow and, when strongly heated, fuses.

(2) in open tube. --

(3) on charcoal. Fuses with ebullition to a brown globule forming an incrustation of [...Bi=] on the charcoal.

(4) in forceps. I. Fuses with ease to a yellow bead, coloring the outer flame bluish green, especially if moistened with HCl. This color is due to [.....P].