Another Columbia Achievement
FLOW
DIAGRAM
DIAPHRAGM PURIFICATION
CAUSTIC PROCESS
C o n v e r s i o n of diaphragm electrolytic to high grade Caustic Soda Columbia's patented purification process for dia* phragm electrolytic Caustic Soda has been an important factor in supplying essential industries. The manufacture of numerous products—not' ably rayon and chemicals—requires Caustic Soda of the highest purity. The increasing demands in these fields made imperative the development of facilities to meet these needs. Columbia's unique method of purification re*
moves all undesirable quantities of sodium chlorate arid sodium chloride. The result is Caustic Soda of exceptional purity—ideal for any of the more exacting usages. This is but one of the more recent accomplish* merits which distinguish Columbia as a producer of alkalies and related chemical products . . . and which recommend Columbia for your considéra* tion as your supplier.
COLUMBIA CHEMICALS PITTSBURGH
PLATE GLASS GRANT
Chicago .
VOLUME
Boston .
St. loub .
2 3, N O .
12
COMPANY*
B U I L D I N G . PITTSBURGH
COLUMBIA 19,
CHEMICAL
DIVISION
PENNSYLVANIA
Pittsburgh . New York . Cincinnati « a o v e l o n j L ^ J ^ ^
·
»
·
JUNE
2 5#
1945
1085
