Word: sodium
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
...Sodium hexametaphosphate, 16 lbs. of which in 1,000,000 gals, of water will prevent scale formation in pipes...
...paper explained that blue crab canning has heretofore been impracticable because the crabs have unstable protein molecules, which, in the heat required for canning, release copper, cause blue copper oxide to form. By dipping the meat in a solution of sodium chloride, lactic acid and aluminum salts, the new process seals the copper into the crab proteins...
...stationed in modern chemical laboratories. Nevertheless, Dr. Harold Clayton Urey and his coworkers* at Columbia University have kept canaries within sniffing distance of their apparatus for months. Reason: the chemists were working with two deadly poisons, hydrogen cyanide (used in some U. S. States to execute condemned criminals) and sodium cyanide. If these began to leak from the apparatus, the sensitive little birds would collapse in time for the men to take action. Pacific, round-faced, gum-chewing Dr. Urey and his associates were not interested in poison, they were simply using the dangerous gases to make a harmless...
...heavy carbon apparatus is a tall glass cylinder with glass spirals inside. Heavy carbon can be separated from light carbon because it dissolves in hydrogen cyanide and sodium cyanide at slightly different rates. When sodium cyanide in water solution runs down the spiral and hydrogen cyanide as a gas flows upward, heavy carbon collects at the top of the apparatus. There were no leaks and the canaries warbled serenely...
...acid dressings. Where tannic acid is not available, strong, lukewarm tea is a good substitute. Tannic-acid compresses must be left undisturbed for two or three weeks, until new skin forms. Victims of mustard gas must have their clothes carefully removed, must be "decontaminated" with soap, clean water and sodium bicarbonate, rubbed with a paste of bleaching powder and water, successful antidote for the oily gas. Then routine tannic-acid treatment follows. Mustard gas can remain on the skin for ten minutes before burns occur; lewisite burns immediately. But treatment for both is the same...