A System of Instruction in the Practical Use of the Blowpipe - novelonlinefull.com
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Mineral. Specular iron Red haemat.i.te
Formula. Fe^{2}O^{3}
Behavior
(1) in gla.s.s-bulb. --
(2) in open tube. --
(3) on charcoal. --
(4) in forceps. V. In the blue flame is converted into Fe^{2}O^{4}, and then behaves as the preceding.
(5) in borax. As magnetic iron ore.
(6) in mic. salt. As in borax.
(7) with carb. soda. --
(8) Special reactions. --
Mineral. Gothite
Formula. [...Fe][.H].
Behavior
(1) in gla.s.s-bulb. Evolves water.
(2) in open tube. --
(3) on charcoal. --
(4) in forceps. As specular iron.
(5) in borax. As specular iron.
(6) in mic. salt. As in borax.
(7) with carb. soda. --
(8) Special reactions. --
Mineral. Franklinite
Formula. ([.Fe][.Zn][.Mn]) ([...Fe=][...Mn=]).
Behavior
(1) in gla.s.s-bulb. --
(2) in open tube. --
(3) on charcoal. Forms a white incrustation on the charcoal, which moistened with cobalt solution a.s.sumes a green color.
(4) in forceps. V. In the blue flame fuses on edges and and becomes magnetic.
(5) in borax. Gives the iron and manganese reaction.
(6) in mic. salt. As in borax.
(7) with carb. soda. Affords a considerable white incrustation of ZnO.
(8) Special reactions. Gives a strong manganese reaction with nitre and carbonate of soda.
Mineral. Ilmenite
Formula. [...Ti=] and [...Fe=].
Behavior
(1) in gla.s.s-bulb. --
(2) in open tube. --
(3) on charcoal. --
(4) in forceps. V. In reducing flame fuses on edges and becomes magnetic.
(5) in borax. Gives the iron reaction.
(6) in mic. salt. In oxidizing flame exhibits the iron reaction.
In reducing flame a.s.sumes a deep brownish red color.
(7) with carb. soda. --
(8) Special reactions. --
