The Employment of Certain Substances for Antiseptic Purposes.
Year: 1886

page_text: Date of Application, 21st May, 1886.
Complete Left, 19th Feb., 1887.
Complete Accepted, 22nd Mar., 1887.
PROVISIONAL SPECIFICATION.
The Employment of Certain Substances for Antiseptic Purposes.
I, WILLIAM THOMSON, of the Royal Institution Laboratory, Manchester, Consulting
and Analytical Chemist, do hereby declare the nature of my invention for "THE
EMPLOYMENT OF CERTAIN SUBSTANCES FOR ANTISEPTIC PURPOSES," to be as follows:-
My invention relates to the employment of chemical compounds containing the
element Fluorine for antiseptic purposes, for the prevention of decay in animal and
vegetable substances, as an antiseptic in Surgery, in medicine, and for sanitary
purposes, and for preserving animal and vegetable food from mould or decomposition,
and for use in the size applied to grey and other calico, or fabrics, to prevent the
growth of mildew therein, and for other like purposes.
The chemical compounds which I by preference employ for these purposes are the
Neutral Fluorides of Potassium, Sodium, and Ammonium, and the Silico-fluorides of
the same bases; but I also find it advantageous, in certain cases, to employ the Acid
Salts of those bases, or mixtures of any of the aforesaid substances, and of Hydro-
fluoric or Hydrofluosilicic acid themselves.
Minute quantities of the substances are sufficient to produce the desired effect; but
variations may be made in this regard without departing from the peculiar character
of the invention.
WILLIAM GADD,
64, Barton Arcade, Manchester.

page_text: I, WILLIAM THOMSON; of the Royal Institution Laboratory, Manchester, Consulting
and Analytical 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 employment of chemical compounds containing the
element Fluorine for antiseptic purposes, for the prevention of decay in animal and
vegetable substances, as an antiseptic in Surgery, in medicine, and for sanitary
purposes, and for preserving animal and vegetable food from mould or decomposition,
and for use in the size, applied to grey or other calico, or fabrics, to prevent the
growth of mildew therein, and for other like purposes.
The chemical compounds which I by preference employ for theso purposes are the
Neutral Fluorides of Potassium, Sodium, and Ammonium, and the Silico fluorides of
the same bases; but I also find it advantageous, in certain cases, to employ the Acid
Salts of those bases, or mixtures of any of the aforesaid substances, and of Hydro-
fluoric or Hydrofluosilicic acids themselves. But inasmuch as the practical difficulties
connected with the employment of Hydrofluoric acid for antiseptic purposes are great,
I do not claim the same as a part of my invention.
The chemical compounds hereinnamed may be employed in connection with water
or other..liquid, semi-liquid, or solid, or dry substances, in any convenient manner,
such as by intermixing therewith or dilution thereby.
The application may in some cases be effected by coating the article to be preserved
or protected with such solution or mixture, or by intermingling, according to the
nature of the object to be treated. Or in other ways or by other means which may
be suited to the special purpose in view.
Minute quantities of the compounds hereinnamed are often sufficient to produce the
desired effect, for example: in some cases one part in one thousand of the substance
to be preserved forms a satisfactory antiseptic solution or mixture, but the same may
range from that degree of attenuation to as much as two parts in one hundred, and
further variations may be made in this regard without departing from the peculiar
character of the invention.
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 :-
The employment of the chemical compounds, hereinbefore named and distinguished,
of the element Fluorine, for all antiseptic purposes such as hereinbefore stated, in
manner substantially as described.
;
… Dated this 18th day of February 1887.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester,
Agent.