Power Thesaurus. 1969. pedometer thesaurus http://www.powerthesaurus.org/pedometer/synonyms (accessed August 31, 2017). Harvard. Power Thesaurus 1969, pedometer thesaurus, Power Thesaurus, viewed 31 August, 2017, <http://www.powerthesaurus.org/pedometer/synonyms>.
We would like to Buy Columbite with Nb2O5 45-55% min,Ta2O5 approx 5%, U3O8+ThO2 0.5% max. Niobium metal ingots 99.95%min.
Thorium is a chemical element with symbol Th and atomic number 90. A radioactive actinide metal, thorium is one of only three radioactive elements that still occur naturally in large quantities as a primordial element (the other two being bismuth and uranium).horium is also used as an alloying element in TIG welding electrodes. It remains popular as a material in high-end optics and scientific instrumentation; thorium and uranium are the only radioactive elements with major commercial applications that do not rely on their radioactivity.