A rare element of the carbon-silicon group, intermediate between the metals and nonmetals, obtained from the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.
A chemical element with atomic number 40. Zirconium was first identified by Martin Henrich Klaproth in 1789. But the discovery is credited to Jöns Jakob Berzelius who successfully isolated the element by heating potassium zirconium flouride in 1824. The name zirconium is derived from zargun, Persian for like gold. Symbol: Zr. Related to transition metals.
Zr. Element 40, atomic weight 91.22, a hard, grayish, highly flammable crystalline metal that dissolves in hot concentrated acids. Used in steel manufacture and in nuclear reactor chambers because of its transparency to neutrons. Its silicate is used to make zircon used as a gemstone.
a lustrous gray strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
A metallic element. Symbol: Zr; atomic number: 40
(a) Element with atomic number 40. It arises almost entirely from the s-process, in red giant stars. [C95] (b) A hard lustrous silvery transition element that occurs in a gemstone, zircon (ZrSiO4). It is used in some strong alloy steels. Symbol: Zr; m.p. 1850°C; b.p. 4380°C; r.d. 6.506 (20°C); p.n. 40; r.a.m. 91.224. [DC99
Acts as a deoxidizing element in steel and combines with sulphur.
A mineral, zirconium silicate. A hard, mineral with a high index of refraction that is used as a gemstone and as an ore of zirconium.
Zirconium (IPA: ) is a chemical element in the modern periodic table that is assigned the symbol Zr and has the atomic number 40. A lustrous gray-white, strong transition metal that resembles titanium, zirconium is obtained chiefly from zircon and is very corrosion resistant. Zirconium is primarily used in nuclear reactors due to its resistance to corrosion and low neutron cross-section.
