The Yellowstone journal., 1894-11-06
1fagM45
FACTS ABOUT SODA WATER.
No Soda Is Used In Its Manufacture 40
cortiing to Present Methods.

No Soda Is Used In Its hanuisc'"rs ~"
cording to Present Methods.
Many years ago Frenchman CON
oaiyed the idea of manufacturing ca
donated water by mixing a solution OF
tartaric acid with carbonate Of sods.
Yhe proportions used Were 80 grains vi
seid and 30 grains of the soda dissolved
ir a winegass Of water. This was the I
eriginal soda water.
The public knows in general way
that marble dust is sometimes used IN f,
making soda water, and the question Is
sometimes asked. isn't marble dust
injurious TO the system As matter
of fact, there Is no marble dust, Cr, 10 use
me technical term, carbonate Of lime,
in soda water The part played by mar
BILE dust in the process Of manufacturing
soda water j. simply TO supply thc .aI-
eonic acid gSs with which the water l.
charged. Tire same gas generated IN
different manner gives froth 20 beer,
ightens bread and makes the bubbles in
lpckwheat cakes This gas can he oh
tnined from carbonate Of soda, carbon
xe Of nagnesia, carbonate Of lime or
from ally other carbonate hE treating l.
with an acid. Sulplugic acid is sener-
ally used The powdered carbonate Of
ime or marble dust, as il IS p1pHiarty
sailed, was until quite recently used al
nost exclusively for this purpose be-
cause it Is very cheap.
To understand how the two chemicals
-sulphuric acid aud carbonate IF lime
act when brought together the reader
may call to mind the mixing Of a seid-
htz powder The tartaric acid ia the
white paper, when in solution mites
With the carbonate of soda in the blue
pAper Effervcsconce at once takes place,
sarbonic acid gas being liberated and
artrate OF soda being formed. Although
nature fu.uShee au unlimited quantity
q carbonates, almost any other acid,
strange to say, will drive ont the car
bOnic acid and usurp its place. This is
oDen in the mixing Of a seldlitz powde%
Now, this L. exactly what takes plac,
~ the manufacture Of soda water, cz-
eopt that the gas instead of being per
nitted TO escape. is confineed to the gen.
srator. The generator is simply an ap-
1paratus in which the acid and the car
he generator the gas is conveyed TO one
- the portable steel foundations, the
appearance of which is familiar to the
.pnblic The fountain is about three
,sx.nrters full of water. After aquantity
u gus has entered the fountain 1t Is
veil agitated. II is usual now to place
y ON a cradle or rocker, and either by
land or steam power to rock it for some
fime generally about half an hour, IN
,urier to mix thoroughly the gas with
ne water When this il done, the foun
tain is again connected with the genera
Azr, more acid is allowed TO reach the
carbonate, more gas is formed and the
same process is continued until the
pressure on the fountain shows l5O
pounds to the square inch. The foun-
min is then set aside, and another Is
put on in its place, and the process goes on
until the supply Of gas il the carbonate
has all been extracted. The refuse Is
thrown away, and fresh supply Of car
Donate is placed in the generator. The
pefuse is srlphate of lime. The sui
vhuric acid has united with the lime,
end the carbonic acid gas has been lib
Grated
As has been said, marble dust has
been used III preference to any other
carbonate in the manufacture Of soda
water because it is the cheapest Quite
recently at least one firm in New York
substituted carbonate of magnesia. This
n a little more expensive. On the other
hand, the decarboIized magnesia, Ia
stead of being thrown away like the
sulphate of lime, can be utilized. II Is
pumped or drawn up 10 higher apart
ment. where it is strained and filtered
20 exclude all impurities and tested. 1t
is then placed in large evaPorating pans
and allowed to crystallize The product
is sulphate Of magnesia, better known
~ epson salts.
The soda water business Is exceeding
" lucrative. The cost of manufacture
is from to cents per gallon, and the
product is sold for l0Ceuts. Sirups Cos
from 90 TO 30 cents gallon and are
sold from 45 70 rs cents. There are
generally about CA glasses to the gal
Ion, and soda water Is sold for . or lC
cents a glass. Other artificial mineral
waters are sold for about 35 cents pei
gallon New York sun.
Railroad Building In Corsica.