OBTAINING GRANULATED ANTISEPTIC PREPARATIONS
Year: 1885

page_text: I, WILLIAM DALRYMPLE BORLAND, of 35 Petherton Road, Highbury New Park,
London, N, Analytical and Consulting Chemist, do hereby declare the nature of
my invention for OBTAINING GRANULATED ANTISEPTIC PREPARATIONS to be as
follows:-
I take finely powdered hydrated borax, and subject the same, with careful
stirring or agitation, to the action of heat sufficiently intense to cause the minute
grains of the powder to become dehydrated and assume a coarsely granular and
approximately spherical form, by reason of the swelling up, which as is well
known, borax undergoes when heated. The granules of the dehydrated borax are
exquisitely light and porous, but are sufficiently coherent that they are not readily
reduced to dust by mutual friction. The granules are separated if necessary into
different sizes by sieving.
The granulated dehydrated borax may be employed by itself, and in its use
there are several advantages over the ordinary powdered or crystallized salt.
I also find it very advantageous to use it as an absorbent, base, or vehicle, of liquid,
liquefiable and vaporizable antiseptics.
"
Thus and for example I saturate the granules partially or completely with
phenol and thus obtain a dry granular preparation which I name "borophenol
and which may contain as much as fifty per cent. of phenol. In a similar manner
I can obtain a granular preparation containing as much as fifty per cent of
eucalyptus oil; this I designate "boroeucalyptol."
+
If advisable I may employ the granular borax to absorb mixtures of liquid
antiseptics, or solutions of solid antiseptics in liquids antiseptic or otherwise,
or I may charge the granular borax with volatile antiseptics, such as thymol,
camphor, phenol by causing the vapors of these substances to condense in and upon
the granules of the borax.
Abi
.

page_text: Obtaining Granulated (Antiseptic Freparations.
I WILLIAM DALRYMPLE BORLAND of 35 Petherton Road, Highbury New Park,
London, Analytical and Consulting 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:-
The object of this invention is to obtain granulated antiseptic preparations and
to carry this object into effect I take powdered hydrated borax and subject the
same with stirring or agitation to a heat sufficiently powerful to cause the particles
of the powdered borax to become slightly coherent by reason of their commencing
to melt in their water of crystallization. In practice it is found that a temperature
of 80-110° C is quite sufficient to effect this. The stirring or agitation by which
the slightly coherent particles are brought into the granular form may be accom-
plished either by means of a revolving drum in which the borax is placed or a pan
provided with a rake revolving concentrically. This process is continued until
small granules are formed. I also take care that this preliminary heating is
continued for such a length of time that the granular product does not contain
more than 30 per cent of water. I then take the granular and partially dehydrated
borax and heat the same to a temperature sufficiently high to cause the granules to
swell up and become spongy. This heating is continued until the desired degree
of porosity and lightness is attained, a relative density of 05 is satisfactory as
regards the absorptive powers of the granules, but I do not bind myself to this or
any other degree of density as the latter may be varied according to the special
density of the antiseptic preparation required. The granules of the now dehydrated
and intumesced borax are exquisitely light but at the same time have such
coherence that they are not easily reduced to dust by mutual friction. The
granular dehydrated and intumesced borax thus obtained I either employ by
itself as an antiseptic preparation or fortify its antiseptic properties by using it as
an absorbent base or vehicle for by admixture with liquid and liquefiable anti-
septics such as carbolic and cresyllic acids. I have found it possible to add one
part of liquid carbolic or cresyllic acid to one part of the granular dehydrated and
intumesced borax and as much as four parts of crystallised phenol to one part of
the granulated dehydrated and intumesced borax above described, obtaining in all
cases preparations dry to the touch. With the preparation of borax herein
described I also combine or mix other liquid or liquefiable antiseptics or solutions
thereof such for instance as eucalyptus oil, cajeput oil, thymol resorceine naphthols
or camphor. I also charge the granular dehydrated and intumesced borax with
such of the above named antiseptics as are volatile by causing the vapours of those
substances to condense in and upon the granules thereof.

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
The hereindescribed manufacture of borax substantially as and for the purpose
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 hereindescribed manufacture of borax substantially as and for the purpose
specined.