Word: boron
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Dates: during 1930-1939
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Minute blue crystals, composed of boron, chlorine, and copper, never before discovered anywhere, have been named, bandylite, in honor of their discoverer...
...chemicals which Dr. Gericke adds to his water are those which ordinary plants need and get from the soil-calcium, magnesium, potassium, nitrogen, sulphur, phosphorus, iron, boron, manganese, copper, zinc. Wire netting is stretched over the top of the tanks and packed with excelsior or sawdust in which the seeds are planted and from which roots sprout down into the water. This bed of litter on the netting serves to support the stalks after the plants are grown. Each tank has an area of .01 acre. In one of these Dr. Gericke grew 1,224 lb. of tomatoes, in another...
...Boron chloride, a new abrasive and second only to the diamond in hardness, is on exhibit. Samples of whiskey are present which have been prematurely aged by the catalytic hydrogenation of compounds responsible for "greenness." A recent development of Grinnoll Jones, professor of Chemistry, bearing the trade name "Pamilla Cloth" is included. It is used as a wrapper for silverware--the silver hydroxide it contains prevents tarnishing...
...Booth's apparatus and methods were intricate. He had to devise a special stopcock-sealing grease that boron trifluoride would not attack, a system of magnetically controlled rods for stirring his mixtures in closed vessels. Every time he generated the trifluoride he washed the maze of tubes, flasks and stills 20 times with air which had been freed of carbon dioxide. Argon 99.9+% was repeatedly distilled for further purification and the boron trifluoride was cleaned until it showed pure in the spectroscope...
...beyond which point pressure increase has no effect. On this basis, trying different proportions of argon from 1% to 60%, the chemists found six plateaus on their graphs of freezing points which indicated six unstable compounds of argon, containing, respectively, one, two, three, six, eight and 16 molecules of boron trfliuoride...