Word: nitric
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Dates: during 1940-1949
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Unlike TNT, which calls for ammonia, sulfuric and nitric acids and toluene, hexamine requires no critical materials. Its basic raw ingredients are coke, air and water. Total production in U.S. in '1941 was 4,000,000 lb. New factories built since then have multiplied that output many times. But before war came, hexamine was a minor industrial product. Its chief uses then were in the manufacture of plastics and as an ingredient in an antiseptic for the urinary tract...
Under older methods, nitrocellulose (made by treating cotton or wood fibers with nitric and sulfuric acids) is forced through "macaroni" machines, chopped into grains of various sizes. This smokeless powder is necessarily handled dry in many stages of its manufacture, and in large quantities...
Essentials of the complicated new process for extracting the vanadium: the phosphate rock is dissolved in sulfuric acid; then nitric acid is added to precipitate the vanadium in powder, then cake form. This will be marketed to alloy-steel makers as vanadium pentoxide...
Etchings, printed from copper plates in which a design, drawn by the artist, has been dug out by the corrosive action of nitric acid. He starts by giving his copper plate a coat of beeswax, scratching his design in the soft wax with a needle. Copper, exposed where the wax has been scratched away, is then eaten away by acid. Parts still covered with beeswax remain uneaten. When the acid bath is over, remaining wax is rubbed off and plate is ready for printing. In Drypoints, which look like etchings to the uninitiated, the artist scratches his design right...
...manufacturers last week agreed to drop mercury from the process of making felt hats. A substitute, hydrogen peroxide and nitric acid, will be used. Thus ends one of the oldest industrial hazards, which still causes dangerous nerve disorders among 10% of 22,000 U.S. hat workers. The agreement will soon be sent to various State Legislatures for enactment into...