Encyclopaedia Britannica, or, a Dictionary of arts, sciences, and miscellaneous literature : enlarged and improved. Illustrated with nearly six hundred engravings > Volume 17, Poetry-RHI

EXTEMPORANEOUS PRESCRIPTIONS.
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Kequifites.
Salt.
22. Carbonate of Magnesia.
23. Carbonate of Potash.
24. Subcarbonate of Potash.
25. Carbonate of Soda.
26. Carbonate of Ammonia.
27. Carbonate of Iron.
28. Carbonate of Zinc.
29. Acetate of Potash.
30. Acetate of Lead. Ph. Ed.
31. Subborate of Soda.
32. Sufertartrate of Potash.
33. Tartrate of Potash.
34. Tartrate of Potash and Soda.
35. Tartrate of Antimony and Potash, or Emetic
Tartar.
Solubility.
Infoluble.
6o°, 4.
212°, I.5
Deliquefcent.
Efflorefcent.
6o°, 2.
Infoluble.
Infoluble.
Deliquefcent.
6o°, 4.
6o®, 18.
2120, 6.
6o°, 60.
212°, 13.
_6o°, 4.
Deliquefcent.
6o°, 5.
Efflorefcent.
6o°, 15.
212°, 3.
Composition.
— A
Base.
45-
40.
Dry 64.
Cryft. 21.58
Dried 59.85
58.
I7*
33-
Tart. Pot.
54-
Ox. of Ant.
38-
Potafh 16.
Acid. Water.
34-
43-
3°-
14.42
40.05
26.
39-
67-
Tart. of
Soda.
46.
34-
21.
I7-
64.
o.
16.
44.
12.
29
Explana¬
tion.
313
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Requifites.
In this firft part of the table of fecondary falls there
are five columns, in the firft of which are fet down the
names of moft of the fecondary falls employed in medi¬
cine, according to the moft approved chemical nomen¬
clature. The fecond column fhewsthe degree of attrac¬
tion which fubfifts between each fait and water, name¬
ly, how many parts of water at the temperatures of 6o°
and 212° of Fahrenheit are required todiffolve one part
of the fait, in the ftate in which it is ufually employed,
TAB
and whether the fait be deliquefcent or efflorefcent.
The three remaining columns point out, as far as has
been afeertained, the proportional quantities of the com¬
ponent parts of each fait, the third column (hewing how
many parts in the 100 confift of bafe $ the fourth how
many of acid, and the fifth how many of water of com~
pofition. In fome cafes two proportions are given, and
it is expreffed in the third column under what ftate of
the fait thefe proportions exift.
LE II.
Decomposition by (Single Affinity.
Barytes.
Potafti.
Soda.
Lime.
Magnefia.
Ammonia.
Tannin.
Gallic Acid.
Oxalic Acid.
Tartaric Acid.
Vol. XVII. Part I,
Salt.
0
W H
H O
Ph
Hi
D
C/3
oi
M
Ph
to
to
Decomposition by Double Affinity.
Nitrate of Potafh.
Silver.
Muriate of Barytes.
• — Lime.
Soda.
Ammonia.
Carbonate of Barytes.
Lime.
Magnefia.
Potafh.
Soda.
Ammonia.
Acetate of Lead.
Subborate of Soda.
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