See what CMC can do
M a k e s Water
Flow Like Molasses Hercules CMC holds the key to a Broad Viscosity Range Today more and more research chemists think of Hercules® CMC when they think of viscosity con trol. The broad range of viscosity available in CMC makes it an ideal material to meet your require ments, no matter how specific they may be. Three regular grades of CMC—low, medium, and high—are readily available to provide you with such viscosity differences as dramatized in the photographs at left. All of these samples were made up to a 3% total solids. Each sample is being poured on screens of identical gauge. High-viscosity grades of CMC are in use, in gen eral, where greatest viscosity increase is desired at lowest unit cost. Lower viscosity grades are pre ferred when the building of solids, rather than vis cosity itself, is most important. This versatile viscosity control agent is compat ible with many water-soluble colloids to permit widely varied modifications for specific end uses. We'll be glad to discuss with you how CMC can be best used in solving your own viscosity problems.
HERCULES Virginia
Cellulose
HERCULES
Department
POWDER.
COMPANY
INCOBPORATEP
900 Market St., Wilmington
99, Delaware
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A B O U T T H E P H O T O G R A P H S . . . Bernard H o f f m a n , well-known science photographer, used a gamma micro camera with a Zeiss 3 2 m m macro tessarlens in taking these photographs. He worked at a distance of 2'Λ inches from t h e subject and shot at a speed of l / 1 0 , 0 O 0 t h of a second.
KEY: Extreme left: 3% CMC 70 low-viscosity. Center: 3% CMC 70 medium-viscosity. Right: 3% CMC 70 high-viscosity.
