OCR Text |
Show Spongy Chromium, Chromium In a romnrkably now spongy form hnB bcon produced by Bluet Bl-uet du Jnssonlox by homing cast chromium chro-mium contalnlug 15 per cent of boron in an electric furnace with a largo mass of copper. Tho ingot shows tho whlto, spongy motnl In tho midst ol the copper. When the lattor Is dissolved dis-solved out tho dried residue Is a brilliant, bril-liant, spongy mass of nearly puro chromium In tho form ot Interlaced fll-amonta fll-amonta or crystalltos grouped like snowflakos or moss loaves. Tho small amount of horon present may bo driven driv-en off by heating. Tho spongy chromium chro-mium Is attacked mnro easily than tho ordinary metal, does not oxldlzo In air. but In flamo burns like tinder glows vory brightly In oxygen nnd Is attacked by hydrochloric nnd sulphuric sulphur-ic acid, but not by nitric odd. |