A Novel Saline Preparation Applicable for Use in Galvanic Batteries and the Process for the Manufacture of the same.
Year: 1886

page_text: Date of Application, 6th July, 1886.
Complete Left, 4th Apr., 1887.
Complete Accepted, 10th May, 1887.
A Novel Saline Preparation Applicable for Use in Galvanic Batteries
and the Process for the Manufacture of the same.
I ALEXANDER SCHANSCHIEFF of Gipsy Hill in the County of Surrey Electrician do
hereby declare the nature of this invention to be as follows:-
This Invention has for its object a novel saline preparation applicable for use in
galvanic batteries and the process for the manufacture of the same.
This saline matter is prepared from metallic mercury and sulphuric acid-It is
when free from impurites a white salt freely soluble in water, to such an extent that
two pounds of metallic mercury are held in solution in a gallon of water when so
dissolved it is suitable for use in my single fluid battery for which I have already
applied for a Patent No. 12378 in the year 1885. The way in which I prepare this
salt is as follows:-
I add three pounds of sulphuric acid specific gravity 1-846 to two pounds of
metallic mercury; I boil until the metal is dissolved and maintain the heat until the
excess of acid is evaporated. When cold I add one gallon (10 lbs.) of water; this
dissolves a part only, precipitation of basic sulphate of mercury taking place.
I separate the solid residue, and this I then again boil with sulphuric acid as
before, in the proportion of two parts of the residue to three parts of acid. By boiling
the residue is dissolved and by continuing the heat the excess of acid is evaporated.
add the resulting mass when cold to the original solution and again I dissolve as much
as the solution will take up and separate the residue after three or four repetitions
the whole is dissolved in the original gallon of water. The density of the liquid will
then be 1435 Beaumé and the quantity about 5 quarts. Finally I evaporate the
liquid by heat until the salt is deposited in a solid state; I rake it out as it falls and
pack it in closely stoppered bottles, in which it may be kept for an indefinite time.
When liquid is required for use in a battery I pour one gallon of water on five pounds
of the salt, it dissolves perfectly, leaving no residue, or if there be impurities which
render the liquid turbid it may be filtered through paper, the solution is then ready
for use in a battery with zinc and carbon elements.

page_text: I can produce the same salt by another process as follows:-but the process which
I have already described is preferable.
I dissolve metallic mercury in sulphuric acid and evaporate off the excess of acid as
already described, when cold I dissolve the salt in three times its weight of water,
partial solution only accompanied by precipitation takes place I then add strong
sulphuric acid little by little and finally drop by drop with constant agitation, the
solution becomes gradually more and more complete until finally it is preceived that
the drop of sulphuric acid as it falls into the liquid produces a precipitate, the process
is then stopped and the solution cooled and filtered, this is then evaporated, as already
described, and yields in a dry state the novel saline material.
Dated this 6th day of July 1886.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: and the Process for the Manufacture of the same.
I ALEXANDER SCHANSCHIEFF of Gipsy Hill in the County of Surrey Electrician
do hereby declare the nature of this invention and in what manner the same
is to be performed to be particularly described and ascertained in and by the following
statement:-
This Invention has for its object a novel saline preparation applicable for use in
galvanic batteries and the process for the manufacture of the same.
This saline matter is prepared from metallic mercury and sulphuric acid. It is
when free from impurities a white salt freely soluble in water, to such an extent that
two pounds of metallic mercury are held in solution in a gallon of water, when so
dissolved it is suitable for use in my single fluid battery for which I have already
applied for a Patent No. 12378 in the year 1885. The way in which I prepare this
salt is as follows:-
I add three pounds of sulphuric acid specific gravity 1-846 to two pounds of metallic
mercury; I boil until the metal is dissolved and maintain the heat until the excess of
acid is evaporated. When cold I add one gallon (10 lbs.) of water, this dissolves a part
only, precipitation of basic sulphate of mercury taking place.
I separate the solid residue, and this I then again boil with sulphuric acid as
before, in the proportion of two parts of the residue to three parts of acid. By boiling
the residue is dissolved and by continuing the heat the excess of acid is evaporated
add the resulting mass when cold to the original solution and again I dissolve as much
as the solution will take up and separate the residue, after three or four repetitions
the whole is dissolved in the original gallon of water. The density of the liquid will
then be 1435 Beaumé and the quantity about five quarts. Finally I evaporate the
liquid by heat until the salt is deposited in a solid state; I rake it out as it falls and
pack it in closely stoppered bottles, in which it may be kept for an indefinite time.
When liquid is required for use in a battery I pour one gallon of water on five pounds
of the salt it dissolves perfectly, leaving no residue, or if there be impurities which
render the liquid turbid it may be filtered through paper, the solution is then ready
for use in a battery with zinc and carbon elements.
I can produce the same salt by another process as follows:-but the process which
I have already described is preferable.
I dissolve metallic mercury in sulphuric acid and evaporate off the excess of acid as
already described, when cold I dissolve the salt in three times its weight of water,
partial solution only accompanied by precipitation takes place, I then add strong
sulphuric acid little by little and finally drop by drop with constant agitation, the
solution becomes gradually more and more complete until finally it is perceived that
the drop of sulphuric acid as it falls into the liquid produces a precipitate, the process
is then stopped and the solution cooled and filtered, this is then evaporated, as already
described, and yields in a dry state the novel saline material.

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
==
1. A novel saline preparation composed of mercury and sulphuric acid forming a
salt freely soluble in water to such a degree that two pounds or thereabout of metallic
mercury may be held in solution in a gallon of water.
2. A novel saline preparation or solution composed of mercury sulphuric acid and
water so combined substantially as described that the water may hold in solution one
fifth of its weight or thereabout of metallic mercury.
3. The process for the production of a novel saline preparation consisting in
dissolving mercury in sulphuric acid, evaporating the excess of acid, adding water to
the resulting mass and separating the precipitate then treating this precipitate with
acid and again with water and so on substantially as described and either retaining
the solution for use in the liquid form or evaporating the solution to obtain the
solid salt.
4. The process for the production of a novel saline preparation consisting in
dissolving mercury in sulphuric acid, evaporating the excess of acid, adding water to
the resulting mass and completing the solution by the gradual addition of strong
sulphuric acid substantially as described and either retaining the solution for use in
the liquid form or evaporating the solution to obtain the solid salt.