The Elements of Blowpipe Analysis

by Frederick Hutton Getman

Illustrations. Examine before the Bp. on Ch. some arsenious oxide, As₂O₃, also some alumina, Al₂O₃.

b. Whether the substance is fusible or infusible.

Illustrations. Examine before the Bp. on Ch. some silver oxide, AgO, also some zinc oxide, ZnO.

c. Whether the substance is alkaline or non-alkaline when placed upon moistened red litmus.

Illustrations. Ignite some calcium carbonate, CaCO₃, before the Bp. on Ch., and place residue on moistened red litmus. In like manner, examine some magnesium carbonate, MgCO₃.

d. Color of coating on Ch. caused by combination of metal and oxygen due to heat of Bp. flame.

Illustrations. Examine some oxide of lead, PbO, before the Bp. on Ch., also some oxide of cadmium, CdO.

e. Decrepitation.

Illustration. Examine some sodium chloride, NaCl, before the Bp. on Ch.

f. Deflagration.