Improvements relating to the Preparation of Carbolic Acid and to the Formation thereof into Lozenges or the like.
Year: 1888

page_text: Date of Application, 31st Jan., 1883
Complete Specification Left, 25th Oct., 1888
Complete Specification Accepted, 30th Nov., 188
Improvements relating to the Preparation of Carbolic Acid and to
the Formation thereof into Lozenges or the like.
I, OTTO RADEMANN, of Forbach, (Lorraine) Germany, Pharmaceutical Chemist,
do hereby declare the nature of this invention to be as follows:-
:―
My invention relates to the preparation of carbolic acid in the form of lozenges.
The object of my said invention is to provide medical practitioners and others as
well as the public at large, with carbolic acid in a solid form, which enables him or
them to prepare, by means of a known quantity of water, a disinfecting liquid of the
exact percentage required.
For this purpose the carbolic acid is advantageously melted in a water bath, and by
rapidly cooling and stirring is converted into small crystals. By expelling, expressing
or drying above sulphuric acid, or any other suitable siccative the crystal-paste
obtained is rendered as anhydrous as possible.
The carbolic acid thus prepared is mixed with about one tenth of its weight of pure
boracic acid, and the mixture is levigated. In this manner a product is obtained
which in appearance resembles loose snow, and like the latter it may be easily put in
moulds; the mass is then pressed into suitable moulds and carbolic acid is thereby
obtained in the shape of lozenges, which differ materially from crystallized carbolic
acid. The mass has a higher melting point, and can consequently be kept a longer
time in the hand without attacking the epidermis as is the case with crystallized acid.
It is easily soluble in water for example a lozenge of 5 grammes is completely
dissolved in 100 grammes of cold water in a few seconds, whereas with the same
quantitative proportions crystallized carbolic acid does not dissolve at all in cold
water, but requires almost boiling water for its dissolution. Its solution is moreover
more permanent than that of the crystallized acid which after a very short time shows
a tendency to separate in small drops from the solution.
The above stated quantity of boracic acid to be added is not absolutely essential as
the same can be varied without departing from the nature of my invention.
13. 1
1
T
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements relating to the Preparation of Carbolic Acid and to
the Formation thereof into Lozenges or the like.
I, OTTO RADEMANN, of Forbach, (Lorraine) Germany Pharmaceutical Chemist
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
--
My invention relates to the preparation of carbolic acid in the form of lozenges.
The object of my said invention is to provide medical practitioners and others as
well as the public at large with carbolic acid in a solid form, which enables him or
them to prepare by means of a known quantity of water, a disinfecting liquid of the
exact percentage required.
For this purpose the carbolic acid is advantageously melted in a water bath, and by
rapidly cooling and stirring is converted into small crystals. By expelling, expressing
or drying above sulphuric acid or any other suitable siccative the crystal-paste
obtained is rendered as anhydrous as possible.
The carbolic acid thus prepared is mixed with about one-tenth of its weight of
pure boracic acid, and the mixture is levigated. In this manner a product is
obtained which in appearance resembles loose snow, and like the latter it may be
easily put in moulds. The mass is then pressed into suitable moulds and carbolic
acid is thereby obtained in the shape of lozenges which differ materially from
crystallized carbolic acid. The mass has a higher inelting point, and can consequently
be kept a longer time in the hand without attacking the epidermis as is the case with
the crystallized acid. It is easily soluble in water however for example a lozenge of
5 grammes is completely dissolved in 100 grammes of cold water in a few seconds,
whereas with the same quantitative proportions crystallized carbolic acid does not
dissolve at all in cold water, but requires almost boiling for its dissolution. Its
solution is moreover more permanent than that of the crystallized acid which after a
very short time shows a tendency to separate in small drops from the solution.
The above stated quantity of boracic acid to be added is not absolutely essential as
the same can be varied without departing from the nature of my invention.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
olaim is
The addition of boracic acid to carbolic acid, for rendering the latter more
difficult to melt by heat and more easily soluble, and for enabling the same to be
moulded into the form of lozenges by mechanical pressure substantially as above
specified.
1000