THE VISION BEHIND YOUR TELEVISION SCREEN
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Γ - QUANTITATIVE SPECTROGRAPHIC ANALYSIS OF A J TYPICAL LOT OF MALLINCKRODT SPECIAL SODIUM SULFATE 1 Copper 1 Silver I Bismuth 1 Cobalt j Chromium Cesium Manganese Nickel Barium Cadmium Silicon Tin Strontium Titanium Zinc Less Less Less Less Less Less Less Less Less Less Less Less Less than than than than than than than than than than than than than 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 ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ppm ι ppm ppm ppm ppm ppm YOURTELEVISIONSCREEN Mallinckrodt Chemicals of almost unbelievable purity help "brighten the picture" in TV-end many other products The quality of a television image depends largely on the quality of the chemicals that go into the complex makeup of the tube: cathode emissive material, phosphors, and screen-laying solutions. Typical of the Mallinckrodt Fine Chemicals for television is our special grade of Sodium Sulfate. Impurities are reduced to such infinitesimal traces that chemists can scarcely believe its analysis (left). The far-sighted vision of Mallinckrodt research that gives the industry such products today may give your products better reception to- morrow. Starting materials of Mallinckrodt uniform purity help re- duce rejects, maintain higher quality at lower cost in many plants. They may do the same in yours, too. Call your nearest Mallinckrodt representative or write: MALLINCKRODT CHEMICAL WORKS Mallinckrodt St., St. Louis 7. Mo. / 72 Gold St.. Ne* York 8. Ν. Υ. CHICAGO · CINCINNATI · CLEVELAND · LOS ANGELES · MONTREAL · PHILADELPHIA · SAN FRANCISCO Manufacturers ol Medicinal. Photographic. Analytical and Industrial Fine Chemicals VOLUME 2 8, NO. 6 » > FEBRUARY 6, 1950 419 ΗΜΙΜΟΓ REHIW
Transcript of THE VISION BEHIND YOUR TELEVISION SCREEN
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
V O L U M E 2 8, N O . 6 » > F E B R U A R Y 6, 1 9 5 0 419
Η Μ Ι Μ Ο Γ REHIW
