Analysis, Detection and Commercial Value of the Rare Metals

acetate alcohol alkaline alloy ammonia ammonium chloride ammonium sulphide aqua regia atomic weight barium bead blowpipe boiling brittle brown caesium cent cerium chemist CHEMISTRY AND COMMERCIAL cipitate color Colorado colorless compounds concentrated containing cooling crucible crystalline crystals decomposed dilute dioxide dissolved filter filtrate flame fracture fused grams H₂O heat hydrate hydrochloric acid hydrogen sulphide ignited insoluble iodide iridium iron latter liquid lithium lustre mass metal mineral mixture molybdate molybdenite molybdenum nickel niobium nitrate nitric acid obtained occurs osmium oxalate oxide palladium pentoxide platinic platinum potassium powder precipitate present produces pure quantities readily reduced residue rhodium rubidium salt selenium separated silica SiO2 sodium carbonate solu soluble in excess soluble in water solution specific gravity steel streak sulphate sulphuric acid tate tellurium temperature thallium thallous thorium tion titanium treated trioxide tungsten uranate uranium vanadate vanadium wash water bath yellow zinc zircon zirconium