A System of Instruction in the Practical Use of the Blowpipe eBook

This eBook from the Gutenberg Project consists of approximately 293 pages of information about A System of Instruction in the Practical Use of the Blowpipe.

A System of Instruction in the Practical Use of the Blowpipe eBook

This eBook from the Gutenberg Project consists of approximately 293 pages of information about A System of Instruction in the Practical Use of the Blowpipe.

(6) in mic. salt.  As in borax, but the saturated bead is
milk-white.

(7) with carb. soda.  Fuses, and is partially absorbed leaving the
lime on the surface.

(8) Special reactions.  As witherite.

* * * * *

LIME.

* * * * *

Mineral.  Gypsum

Formula. [.Ca][...S] + 2[.H].

Behavior

  (1) in glass-bulb.  Turns white, giving off water and being
                         converted into plaster of Paris.

  (2) in open tube. —­

  (3) on charcoal.  In the reducing flame forms CaS, which has an
                         alkaline reaction on test paper, and gives a
                         sulphur-reaction when laid on silver and
                         moistened.

  (4) in forceps.  Fuses with difficulty to a bead, coloring the
                         flame red.

  (5) in borax.  Dissolves to a clear bead, which gives the lime-
                         reaction.

  (6) in mic. salt.  As in borax.

  (7) with carb. soda.  Behaves as lime.  The alkaline mass laid on
                         silver and moistened gives the sulphur-reaction.

  (8) Special reactions.  Gives the sulphuric-acid reaction.

* * * * *

Mineral.  Apatite
                              { Cl
Formula. [.Ca]{ -- +3[.Ca]^{3}[.....P]
                              { Fl
Behavior

  (1) in glass-bulb.  Occasionally decrepitates and gives off some
                         water.

  (2) in open tube. —­

  (3) on charcoal. —­

  (4) in forceps.  IV.  Previously dipped in SO^{3} colors the flame
                         green, afterwards red.

  (5) in borax.  Dissolves easily and when in some quantity gives
                         an opaline bead.

  (6) in mic. salt.  Gives the lime-reaction.

  (7) with carb. soda.  Is infusible.  The alkali is absorbed, leaving
                         the lime on the on the surface of the charcoal.

  (8) Special reactions.  With microcosmic salt and oxide of copper, gives
                         the chlorine-reaction.  With microcosmic salt in
                         the open tube evolves fluorine.

* * * * *

Mineral.  Pharmacolite

Formula.                 [.Ca]^{2}[.....As] + 6[.H].

Behavior

  (1) in glass-bulb.  Gives off water, and emits an arsenical odor.

  (2) in open tube. —­

  (3) on charcoal.  Fuses to an opaque bead and emits a strong smell
                         of arsenic.

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A System of Instruction in the Practical Use of the Blowpipe from Project Gutenberg. Public domain.