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Word: ammonium (lookup in dictionary) (lookup stats)
Dates: during 1930-1939
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Usage:

...advantage which Dr. Fellers claims for his blue crabs is that "struvite" (harmless crystals of magnesium ammonium phosphate which occur in nearly all canned fish products) is not found in eastern crabmeat. Many fish packers are troubled by struvite lawsuits, for their customers crunch the crystals between their teeth, think they have been chewing glass...

Author: /time Magazine | Title: FISHERIES: Blue Crabs | 9/25/1939 | See Source »

...extracted their juices. This liquid was highly infectious to normal plants. But the deadly principle could not be cultured like a bacterium. Dr. Stanley found that it could be digested - that is, destroyed - by certain enzymes such as pepsin. This was important. Pepsin digests only proteins. Finally, using an ammonium compound which nudges proteins out of solution, Dr. Stanley isolated the virus as white crystals. When diluted 100,000,000 times, the crystals were still able to infect plants...

Author: /time Magazine | Title: Science: Macro-Molecules | 11/15/1937 | See Source »

...typed paper at the arthritis specialists. The roll, said he, was 31 ft. long. All that yardage was needed to list the patent medicines sold over U. S. drugstore counters for the cure of arthritis. They included analgesics like aspirin, local balms like antiphlogistine, blood builders like ferric ammonium citrate. Some of their names: Joyzone Pain Analgesic, Clear Water Joint Ease, Rising Mist, Wizard Balm, U-Rub-It, Rivet Cold Breaker, Pain Knocker, Oil-O-Youth, Root-Tea-Na-Salve...

Author: /time Magazine | Title: Medicine: Ridicule v. Vice | 12/14/1936 | See Source »

...William Russell Levis & Edward Lewis Axelman of Philadelphia call theirs a "Modern Method for Prevention of Postoperative Distention." They depend upon a newly synthesized drug to keep the bowels moving and expelling any gas which may form. The drug: dimethyl-carbamic ester of 3-hydroxyphenyl-trimethyl ammonium methyl-sulphate, a chemical compound which has been telescoped to prostigmin. Drs. Levis & Axelman inject small amounts of prostigmin "at the time of operation or shortly thereafter and continue injections for 24 to 48 hours at four to six hour intervals, or until such time that we feel the condition of the patient...

Author: /time Magazine | Title: Medicine: Postoperative Gas | 5/18/1936 | See Source »

...wood tested, processed by a New Jersey manufacturer, was red oak and maple impregnated thoroughly and uniformly in pressure tanks with ammonium salts which, when hot, release combustion-smothering gases. The treated wood is almost as easily tooled as ordinary wood, a little heavier because of the salt content, no different in appearance. It takes varnish well. The Board's testers created conflagration conditions in large chambers fired by gas nozzles, watched through windows. Under conditions that sent untreated walls and floors roaring up in flames, the treated wood did not burn at all. When exposed to intense heat...

Author: /time Magazine | Title: Science: Fireproof Wood | 1/20/1936 | See Source »

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