TALKING ABOUT
SILENE
i ' JP
1,000,000 ATHENIANS would still be hammering
The particle size of Columbia-Southern's Silène is so small that if one piece of sand the size of buckshot were to be cracked by a household hammer into particles the size of Silène, it would take: 1,000,000 men, working 2,250 years, eight hours a day, making 100 strokes a minute, to do the j o b Î In other words, if one million Athenians had started in 297 B.C., they would still be hammering today!
HERE ARE SOME OF SILENES PHYSICAL PROPERTIES: Bulk Density approx. 12 lbs./cu. ft. Specific Gravity 2.1 Average Particle Size .030 micron Oil Absorption, Rub-In Method 120-130 pH 9.1-10.2
This fine particle size of Silène, Columbia-Southern's precipitated calcium silicate, and its other exceptional properties, make Silène a product of great promise in many industries.
If these properties of Silène suggest a place in your product to make it better, stronger, whiter, or more> economical . . . we will be glad to supply you with experimental quantities of Silène, and to offer yom our technical assistance.
Its foremost use now is in the compounding of rubber where Silène is employed because of the excellent physical properties it imparts. In addition, Silène has found application in printing inks, paints, and in certain plastics. Numerous advantageous uses for Silène have yet to be discovered. Can Silène answer your processing problems?
Silène may w^rk for you! Write, today :
COLUMBIA-SOUTHERN CHEMICAL CORPORATION! Dept. Silène, 632 Duquesne Way, Pittsburgh 2 2 , Pa. Please send me further information concerning SUene.
COLUMBIA-SOUTHERN
NAME__
CHEMICAL CORPORATION SUBSIDIARY
OF P I T T S B U R G H
PLATE C L A S S
FIRM
COMPANY
DISTRICT OFFICES: BOSTON · CHARLOTTE · CHICAGO · CINCINNATI CLEVELAND · DALLAS · HOUSTON · MINNEAPOLIS · NEW ORLEANS NEW YORK · PHILADELPHIA · PITTSBURGH · ST. LOUIS · SAN FRANCISCO
VOLUME
3 1,
NO.
20
MAY
18,
1953
STREET.
CITY
__5TATE_
2071
