by Mr Georgius.
It is more easily obtained by saturating the lemon-juice with lime, so
as to form a citrat of lime, which is insoluble in water; wash this
salt, and pour on a proper quantity of sulphuric acid; this forms a
sulphat of lime, which precipitates and leaves the citric acid free in
the liquor.
TABLE _of the Combinations of Pyro-lignous Acid with the Salifiable
Bases, in the Order of Affinity(A)._
_Bases._ _Neutral Salts._
Lime Pyro-mucite of lime.
Barytes barytes.
Potash potash.
Soda soda.
Magnesia magnesia.
Ammoniac ammoniac.
Oxyd of
zinc zinc.
manganese manganese.
iron iron.
lead lead.
tin tin.
cobalt cobalt.
copper copper.
nickel nickel.
arsenic arsenic.
bismuth bismuth.
mercury mercury.
antimony antimony.
silver silver.
gold gold.
platina platina.
Argill argill.
[Note A: The above affinities were determined by Messrs de Morveau and
EloI Boursier de Clervaux. These combinations were entirely unknown till
184