A. NEW MEDICAL COMPOUND AND THE PROCESS OF MANUFACTURING THE SAME
Year: 1884

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PROVISIONAL: SPECIFICATION:
I ERNST WILHELM RUDOLF SCHRÖTER of Hamburg, Germany, Chemist, do
hereby declare the nature of the said invention for "A. NEW MEDICAL COMPOUND
AND THE PROCESS OF MANUFACTURING THE SAME," to be as follows:-
Oils, which contain sulphur in natural chemical combination, such as schist oil
etcetera, are mixed with an equal or up to the three fold quantity of concentrated
sulphuric acid. Thereby the mixture is heated and a violent reaction is produced,
during which large quantities of sulphurous acid escape. One part of the oil
enters into chemical combination with the sulphuric acid, thus becoming absolutely
soluble in water, while the residue collects on the top of; the water and remains as
oil insoluble in water.
After separating the oil from the sulphuret the latter is washed out thus
becoming cleaned of the sulphuric and sulphurous acids, which are mechanically
mixed with it; a new compound the ichthyol sulphur acid remains as a dark green
molasses-like substance of acid reaction.
By neutralizing such ichthyol-sulphur-acid, which still contains an excess of
sulphuric and sulphurous acids, with soda potash, ammonia or any other base
ichthyol-sulphuret of soda or potash, or ammonia etcetera is produced, of which the
two first ones are to be washed out with water in order to remove the sulphate.
and sulphite of soda or potash.
U
When the ichthyol-sulphur-acid is treated repeatedly with concentrated sulphuric
acid, bisulphates, trisulphates etcetera are produced, which also are absolutely
soluble in water, contain correspondingly larger quantities of sulphur and oxygen
and also be transformed into bibasic salts by neutralizing with a base.
may
;
Dated the 23rd day of July 1884.
12.
1.E
WP. THOMPSON & Co., :
.
J. O. O'Brien,
Of 6, Lord Street, Liverpool,
Patent Agents for the Applicant.
i.

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COMPLETE SPECIFICATION.
I, ERNST WILHELM RUDOLF SCHRÖTER, Hamburg, Germany, Chemist, do
hereby declare the nature of my said invention for "A NEW MEDICAL COMPOUND
AND THE PROCESS OF MANUFACTURING, THE SAME"; and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:
1
Oils, which contain sulphur in natural chemical combination, such as schist, oil
etcetera, are mixed with concentrated sulphuric acid in the proportion of from one
to three parts of acid per part of oil.
The mixture heats and a violent reaction is produced, during which quantities of
sulphurous acid escape. One part of the oil enters into chemical combination with
the sulphuric acid and becomes soluble in water, while the remaining portion
collects on the top of the water and remains as oil insoluble in water.
After separating the oil from the sulphur compound the latter is washed out thus
becoming partially freed from sulphuric and sulphurous acids, which are mixed
therewith only mechanically thus a new compound the ichthyosulphur acid remains
as a dark green molasses like substance of acid reaction It is composed of carbon
hydrogen sulphur and oxygen in about the following proportions:
Carbon 59.71
Hydrogen 6.57
Sulphur 16.56
Oxygen 17.16.
By neutralizing: this ichthyosulphur acid which still contains excess of sulphuric
and sulphurous acids with soda, potash, ammonia or any other base an ichthyo-
sulphuret of the base is produced of which the two first ones are to be washed out
with water in order to remove the sulphate and sulphite of soda or potash.
When the ichthyosulphur acid is treated repeatedly with concentrated sulphuric
acid,, bisulphates, trisulphates etcetera, are produced, which also are absolutely
soluble in water, contain correspondingly larger quantities of sulphur and oxygen
and may also be transformed into bibasic salts by neutralizing with a base.
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
1st. A new medical compound produced by treating an oil, which contains
· sulphur in natural chemical combination, with from an equal up to a threefold
quantity of concentrated sulphuric acid.

page_text: 2nd. The compounds of the above substance which are produced by neutralizing
it with natron, potash, ammonia or any other base.
3rd. The process of manufacturing such compounds substantially as set forth.
WM P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
and 323, High Holborn, London,
Filing Agents for the Applicant,