coï
WHEN TAPS SLOWED TO A TRICKLE
ored t h e flow A few years ago the water taps in o n e of our midwestem cities began to flow too gently. City engineers suspected the culprit was excess lime. In the lime-soda ash process of water treatment it is customary to over-treat the water to assure maximum softening. This causes plugging of the water lines due to precipitation of the excess lime.
CO2
SOLVES
THE PROBLEM
Recarbonation of t h e treated water with C O 2 changed t h e lime t o a more soluble f o r m — a n d water pipes stayed free-flowing. The C O 2 system is successfully solving the lime problem in cities like Minneapolis, M i n n . , Columbus, O h i o , Eau Claire, W i s . and many other municipalities. This is just one o f hundreds of C O 2 applications that may lead you t o a solution t o o n e of your problems.
FOR
IS T H E R E A J O B CO2 IN YOUR PLANT?
Almost every day a n o t h e r manufacturer o r processing plant finds that carbonic gas can improve the product, simplify an operation, cut cost, o r increase safety. CO2 is now doing a job in such varied applications as these: C u r i n g c o r e s a n d m o l d s for f o u n d r y c a s t i n g s M a k i n g p o s s i b l e l o w c o s t gas s h i e l d e d w e l d i n g De-flashing m o l d e d r u b b e r p r o d u c t s q u i c k l y at l o w cost I m p r o v i n g paints and varnishes Freeze-drying pharmaceuticals A l o w cost, safe, w e a k acid f o r n e u t r a l i z i n g As a n inert a t m o s p h e r e t o p r e v e n t fire a n d e x p l o s i o n A n d h u n d r e d s of o t h e r a p p l i c a t i o n s Some of these may be of direct interest to you, others may b e adaptable to your field. If you'd like a broader list, we'll be glad to send you our b o o k l e t " C O 2 Applications Unlimited". Just check it on t h e c o u p o n below. If you'd like detailed technical data on any of the applications listed in this advertisement, check those in the coupon too. !
sLIQUÎD CARBONIC
[ C u r i n g Cores a n d
Molds Zi Rubber T u m b l i n g —1. «, . I[ _i Freeze-Drying Π
G a s Shielded Welding Paint and V a r n i s h Manufacture Other_
THE LIQUID CARBONIC CORPORATION 3 1 2 2 South
K e d z i e
A v e n u e
'
Chicago 23, Illinois
Please send me a copy o f " C O ? Applications Unlimited" r i *• r r plus detailed i n f o r m a t i o n on the indicated uses o f CO2· Name Tit|e
Company,
Address . City
Zone
JUNE
State_
3, 1 9 5 7 C & E N
71
