Atlanta semi-weekly journal. (Atlanta, Ga.) 1898-1920, 1919-06-24
Common Disinfectants

Disinfectants are used to destroy
organisms that bring on disease, de-
cay or disagreeable odOrs. There are
several common and effective kinds;
should be handled carefully. Good
results have been obtained through
the use of the following at the Geor-
gia experiment station, Experiment,
Georgia:
Lime The best manner of apply
ing lime is in the form of milk of
lime. 1t is prepared as follows:
Treat a lump of quick-lime in a COW
cred vessel with water until a
creamy liquid is obtained. Keep IN
an alright receptacle when not in
use. Quick-lime may be pulverized
and sprinkled on dry.
Chlorinated Lime: This material,
commonly called bleaching powder,
is prepared by showering Stacked
lime powder through chlorine gas. 1t
is a white powder that decomposes
on exposure to air, therefore it should
is prepared for use by mixing IN
the proportion of six ounces of the
powder to each gallon of water. This
Is a very efficient disinfectant.
Formaldehyde: This material is
usually purchased under the name
of "Formalin," which is solution
containing about 40 per cent formal
dehyde. 1t is used either as a gas
or as a liquid Formaldehyde is a
very effective disinfectant. The
space to be disinfected should be
kept tightly closed and the tempera-
ture should be about 65 degrees +.
The gas may be generated from TOR
malin in several ways. The best
manner of applying is by spraying or
through the use of an oX1dlzlng
agent. In spraying an ounce OF for-
nalin is required for each 100 cubic
Tn IcsiT
ing agent potassium permanganate
being the best, proportion OF 3
parts formalin to 5 parts potassium
permanganate is recommended,
Twenty ounces of formalin and 16 2-3
ounces of potassium permanganatee
are required for each 1000 feet OF
space to be disinfected. The crystals
Of permanganate may be put in an
ordinary dishpan and the formalin
poured on rapidly so the person may
get away quickly.
Sulphur: This is a cheap disin-
Of tho others. The fumes Of sui
nhur bleach fabrics and discolol
naint The proper proportion for use
! : about 4 ounces to each 1000 cup1c
feet Of space. The sulphur is broken
into small pieces and put into an iron
not which should he put in tub
containing a few inches of water to
prevent fire. Pour on little alec,
hol and set on fire. The room should
be kept closed for some time.
Carbolic Acid: This acid is very
noisonous but powerful disinfect-
ant It is a solid when pure, but is
often sold in the liquid form which
contains one part water to nine parts
acid. The proper proportion for use
IS part to 90 parts water. If
fabrics are to be disinfected with
this material. they should he in con-
| tact for at least an hour. Crude car
tolic acid is sometimes used but its
value is dependent upon the cresol ii
contains.
CresoI This is a color1ess liquid
having the order of carbOlic acid. 1t
10 relatively cheap and a good disin-
fertant. The proper strength for use
is per cent solution. 1t is APP
nied in the same manner as carbolic
acid.
Richlorida Of Mercury: This is a
white. crystalline poisonous sub
stance. It is used in the promotion
Of I tn 500 or I to 1000. Tt is n
powerful germicide, but ? deadly
poison.