Γ - QUANTITATIVE SPECTROGRAPHIC ANALYSIS OF A J TYPICAL LOT OF MALLINCKRODT SPECIAL SODIUM SULFATE

1 Coppe r 1 Silver I Bismuth 1 Cobalt j Ch romium

Cesium

M a n g a n e s e N icke l

Ba r ium Cadmium

Si l icon Tin Stront ium T i tan ium Zinc

Less Less Less Less Less

Less Less

Less Less

Less

Less Less Less

t h a n t h a n t h a n t h a n t h a n

t h a n t h a n

t h a n t h a n

t h a n

t han t h a n t han

0.3 0.1 0.1 0.5 0.5 0.1 0.2 0.9 0.1 0.5

. . . .15 .0 0.1 0.1 1.2 1.0 0.3 0.1 0.5 1.0

p p m p p m p p m p p m p p m p p m p p m p p m p p m p p m p p m p p m p p m p p m ι p p m p p m p p m p p m p p m

YOUR TELEVISION SCREEN

Mallinckrodt Chemicals of almost unbelievable purity help "brighten the picture" in T V - e n d many other products

The qual i ty of a television image depends largely on the qual i ty of the

chemicals that go into the complex makeup of the tube: cathode emissive

material, phosphors, a n d screen-laying solutions.

Typical o f the Mal l inckrodt Fine Chemicals for television is our special

g rade of Sodium Sulfate. Impurities are reduced to such infinitesimal

traces t ha t chemists can scarcely believe its analysis (left).

The far-sighted vision of Mal l inckrodt research that gives the industry

such products today may give your products better reception to­

morrow. Starting materials of Mal l inckrodt uniform purity help re­

duce rejects, maintain higher qual i ty a t lower cost in many plants.

They may do the same in yours, too. Cal l your nearest Mal l inckrodt

representative or wr i te:

MALLINCKRODT CHEMICAL WORKS M a l l i n c k r o d t S t . , St. Lou i s 7. Mo. / 72 Go ld St . . N e * York 8 . Ν. Υ.

CHICAGO · CINCINNATI · CLEVELAND · LOS ANGELES · MONTREAL · PHILADELPHIA · SAN FRANCISCO Manufacturers ol Medic inal . Photographic. Analyt ical and Indus t r i a l Fine Chemicals

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