Tulsa daily world. [volume] (Tulsa, Indian Territory [Okla.]) 1905-1919, 1918-03-31
NEW SOLUTION
OF ANTI-FREEzE
Tho National Automobile Chamber
Of Commerce Has Made Thoro
Investigations.

The subject Of anti-freeEing solu-
tion- for automobile radiators has
been brought very forcibY 10 the at
tention of users OF motor vehicles
this winter. and many requests for
Information regarding their use have
been received by the bureau OF
standards. department OF commerce
An investigation was undertaken By
the bureau 10 establish the value OF
these compounds and sufficient data
has recently been obtained to JUSTIFY
a preliminary statement. This work
will be continued, tests equivalent 10
service conditions will be made. and
moro comprehensive report given
at later date, but In time for use
during the coming winter.
A careful study Of this question by
tho bureau leads 10 the conclusions
based on experiment that, t) cal
cium chloride compounds should be
used with caution. II at all. on ac-
count of their corrosive action, (aJ
kerosene or slmaar oils should not
he used on account of their Inflam-
inability, high boiling point, and et-
feet on rubber; (D mixtures OF ely
cerine and alcohol can be used but
the price OF glycerine, and the need
for It IN the manufacture OF muni-
tions az the present time should
preclude its use: (A solutions made
from either wood alcohol or dena-
mred alcohol seem at the present
| time 10 be tho most desirable anti
freezing solutions to use. II tho
wood alcohol ls free from acid there
Ia little choice between the two slco-
hols Wood alcohol costs more than
denatured alcohol and is more vol
atne, but its lower freezing point al
lows a less amount TO be used, which
may counteract the above disadyant-
age.
The ideal anti-free2ing compound
II one that will prevent freezing or
the radiator liquid without injur-
| ing either engine or radiator that
will not lose It's non freezing prop
critics after continued use. and that
/ does not materially change the boil
ing point OF water when dissolved In
IT,
Kinds Of Anti Freezing Compounds.
There are two general types OF
these compounds--one a solution In
water OF alcohol or glycerine, or or
a mixture OF the latter two. the 9TH
er solution In water OF calcium
chloride or the dry salt Itself, which
contains sometimes small amounts
of other substances such as salt, sal
amonlac. sugar or syrup, Kerosene
and similar oils. without admixture,
are sometimes used.
Kerosene.
Kerosene has n lower freezing
point and hlshen6olllns point ~ than n.
vapor makes 1t dangerous to use.
HEu It's high and uncertain boiling
point might lead to the serious over
heating OF the engine. or even TO the
melting OF the solder In the radia-
tor. II has marked solvent action
on rubber parts. These facts seem
to clearly Indicate that this material
should not be used.
Alcohol and Calcium Chloride.
The alcohol water type In the most
common and is not generally sold
under any trade name. but recently
there has appeared on the market
b number OF Hntl-freezing com
pounds OF the calcium chloride type.
These compounds are sold under n
variety OF names and startling claims
are made for their effectiveness and
lack of Injurious effects.
Corrosive Action.
The alcohol solutions do not ex-
ert greater corrosive action than
water alone. This can be predicted
from theoretical considerations and
is we'll established in practice. Wood
alcohol sometimes contains free
acids, such as acGc. acid, which Is
Objectionable andM<h this reason
wood alcohol should be used only
when Il Is known to be free from
acids
The calcium chloride compounds
exert a greater corrosive action than
water on the engine jacket, on the
lhOlUeT IN lnt Th0iutpf anu on dihinA-
mum which Is sometimes used In
manlfolds. pumps and headers The
effect on engine Jackets may be neg
lected since these are generally suf-
ficlently heavy TO permit consider
able corrosion without being weak
ened The effect on soldered Joints
may be serious. since tests made at
the bureau OF standards have shown
the complete removal OF solder from
copper and brass when immersed
In hot 90 per cent calcium chlor-
ids solution for four days A num-
her OF such tests were made and
there was always more rapid cor
rosion or eating aawV ~ solder In
these auti-free1ing compounds than
In water
Calcium Chloride and Ignition.
Another troublesome eject OF cal
cium chloride solutions Is expert
onced II small leaks occur In the ra-
diator. the water Jackets. or connec-
tious, and the solution comes In cor
tnrt with the spark plugs and ig-
milton wires. In some cases the
drops OF the solution may be carrie /
back on the engine In a more or es'
latomiBed state. assisted by the fan
when running The salt deposited
when the water evaporates Is very
art Quito ic..oNe and when u co0ls
ahsoths Naici and become go,l
electrical sonuu,ter.< shOrt-circu
the Spark piLer and sometimes max.
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