The daily Gate City. [volume] (Keokuk, Iowa) 1855-1916, 1914-01-25
The Chemist Of the State organiza-
ton viii be Pleased to Give
Advice or Assistance
When Desired.

\
tanned common dirt may not have been
as unsanitary, as dangerous to health
as some that looked better The state
| board of health is going to give the
ice proposition more attention in the
| future, recognizing the fact that ice
! may be fruitful source of disease, as
| the germs are not affected by freezing
| temperatures. The board has issued
the following timely warning to per-
sons intending to put UP ice for do
I nestle use:
The season is rapidly drawing near
when people who contemplate putting
up ice this winter for domestic use
will be getting ready to harvest their
crops of ice.
To companies who put up ice on
! large scale for distribution, railroads
and others Of like nature, as well as
the private Individual putting UP ice
for his own consumption, it should be
I borne in mind the ever increasing dan.
ger in late years Of putting UP natural
Ice from the streams and lakes OF
Iowa
!. It is a fact that the increasing pol
!, luton OF our streams and lakes OF the
Estate of Iowa are, or have increased
to such point that practically all OF
: them are unfit to use for drinking pur
poses. raw or untreated.
I, 1t should be said at once that freez
Ing water diminishes much of the i'm
purities held by the water and there
| fore the Ice made from an impure wa
ter is much better than the origina
water or the residual water left be
! hind after freezing. Analysis have
/. shown, however, that while large
part of the impurities are eliminated
!. in freezing, there is some that is lef
in the ice, then such ice is subject tt
: the same danger as the original wa
i ter, but to a less degree, as thu
= amount Is less.
1t is, therefore. true that ice is gen
q orally better than the water from
d which it is made. but it is only mat
. ter Of degree, not Of kind.
, The use of such an ice in direc
4 contact with foods or for cooling drink
q by direct contact or melting in the L
= ouid is then fraught with danger an
a is a constant menace to users OF tn
IL same.
" Storage of ice will improve It's qua
n ity from a sanitary standpoint, an
4 1t is true that impure ice is better t
" use late in the summer or fall than
le is in the spring or early summer.
Id On the whole, it can be seen there
IF fore that there should be some reguls
ton as to where and how ic
s. can be harvested and under what col
ID dition 1t can be distributed. No ic
O. should be allowed distributed to tn
III innocent public that is not free frol
lie danger, and all distributing companie
le should be required to furnish certi1
Sc cate as to the purity of it's ice inten'
ed for distribution.
W Fortunately, there is cheap an
W. effective method of preparing tn
st water intended for manufacture of lie
a which can be easily applied to lake
III ponds and small bodies of water fe
1t this purpose The method consists {
at sterilizing the water before freezin
re over, to free it of any dangerous oil
OF ease germs and of large part of Il
Id bacterial life. SO that the Ice prepare
hit from a sterilized water will be ga
II to use and free from danger. TT
to chemicals used are calcium hypochlo
ng lite or copper sulphate, or both, d
is pending OH conditions and impuriti'
st, present in the water.
is The former chemical, made especii
TX ly for the publication of water Is
SIX high grade powder containing not lie
than 35 per cent of available chlorin
such as is manufactured by the DO
Chemical Co., of Midland, Michiga
J. ] and by other standard chemical COZ
- panies. This powder should be add
w to the water 10 be sterilized in t
~, rate of to % pounds per million g
he Ions of the water Rub the powder
.st to thin cream with little wat'
ed and then pour into tank of watt
as agitate we'll and let settle. The Gle
I'd solution is then ready to be added
the water to be sterilized. The adj