Atomic number (number of protons in the nucleus): 41 2. Hatchett’s discovery was refuted shortly thereafter by British chemist William Hyde Wollaston, who claimed that columbium was in fact the same element discovered in a different mineral by Swedish chemist Anders Gustaf Ekeberg. Prop 65 - Developmental toxicity pH-value: Not applicable. Density at 20 °C (68 °F): 8.57 g/cm³ (71.517 lbs/gal) Health (acute effects) = 0 No further relevant information available. See Section 7 for information on safe handling Not applicable The metal was first prepared in 1864 by Blomstrand, who reduced the chloride by heating it in a hydrogen atmosphere. To the best of our knowledge the acute and chronic toxicity of this substance is not fully known. In compounds of niobium (where known), the most common oxidation numbers of niobium are: 5. Persistence and degradability Due to its similar properties and wider availability, niobium is a potential lower-cost subsitite for tantalum used in capacitors and transistors in microelectronics. DOT, ADR, ADN, IMDG, IATA Nozzle for Apollo Service module was also made using niobium alloy . Ridhi Dogra Movies List, Niobium nanoparticles and nanopowders are also available. Suitable extinguishing agents Most metallurgists, leading metal societies, and all but one of the leading U.S. commercial producers, however, still refer to the metal as "columbium. No further relevant information available. The metal starts to oxidize in air at 200°C, and when processed at even moderate temperatures must be placed in a protective atmosphere.Niobium is used in arc-welding rods for stabilized grades of stainless steel. After swallowing Please join us and our customers and co-sponsors. Results of PBT and vPvB assessment Safety, health and environmental regulations/legislation specific for the substance or mixture Additional information about design of technical systems: Upper: Not determined Not applicable After eye contact Niobium was first discovered by Charles Hatchett in 1801. Not applicable In 1845, German chemist Heinrich Rose analyzed the same mineral from Ekeberg’s experiment (which had subsequently been termed tantalite) and announced the sample contained two elements in addition to tantalum--which he fittingly named “pelopium” and “niobium” after Pelops and Niobe, the daughters of Tantalus. Dante Stallone Age, American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. Other hazards Niobium is a strange, soft, malleable, ductile, gray-white metal. Recommendation Named after Niobe, the daughter of Tantalu. Further information about storage conditions: The measure of niobium produced by Brazil currently is 40,000 metric tons per year. Some niobium compounds are considered toxic. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. REACH - Pre-registered substances See Section 8 for information on personal protection equipment. Acids Reacts with strong oxidizing agents Hazard statements Apple Galette, Niobium is used to increase the refractive index of glass. Eye protection: Safety glasses If symptoms persist, consult a doctor. Niobium's main use is in alloys where it is used to produce arc-welding rods and corrosion-resistant steel. DOT, ADN, IMDG, IATA Niobium-tin wires, niobium-zirconium wires, and niobium-titanium wires are used in the high power superconducting magnets in MRI scanners, nuclear magnetic resonance instruments, and CERN. The su… Major world producers of niobium include Brazil, Canada, Australia, Rwanda, Nigeria, and Mozambique.In most cases, niobium mining is done using the open-pit method.