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Zr ( Zircon )

Keterangan

     The solid metal will burn in air, but with difficulty. When finely divided, however, it ignites spontaneously.

Nama lain (trademark, branding etc.)

Zirkonium, Zirkonium, Cirkonij, Zirkonium - s, Zirconio, Xircônio, Цирконий, Circonio, 

Spesifikasi Produk

Atomic Number 40
Group 4
Period 5
Series Transition Metals
Relative Atomic Mass (12C=12.000)  91.224
Melting Point 2125K 1852°C 3366°F
Boiling Point 4650K 4377°C 7911°F
Density/kg m-3  6506 (293K)
Ground State Electron Configuration  [Kr]4d25s2
Electron Affinity(M-M-)/kJ mol-1  -43
Discoverer Martin H. Klaproth
Discovery Location Berlin Germany
Discovery Year 1789
Name Origin     Farsi, zargun for gold color.

Aplikasi

     Zirconium has very low absorption for neutrons, and is therefore useful in nuclear energy applications. More than 90% of zirconium production is used in this field, as reactors use many metres of zirconium alloy tubing.
     Zirconium is exceptionally resistant to corrosion by most agents including sea water, acids and alkalis, and so is used extensively by the chemical industry where corrosive agents are in use.
     With niobium, zirconium is superconductive at low temperatures and is used to make superconductive magnets.
     Impure zirconium(IV) oxide is used for crucibles which will withstand heat shock, for furnace linings, and by the glass and ceramics industries.

Bahan Baku

Zircon (/ˈzɜrkən/; including hyacinth or yellow zircon) is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4. A common empirical formula showing some of the range of substitution in zircon is (Zr1–y, REEy)(SiO4)1–x(OH)4x–y. Zircon forms in silicate melts with large proportions of high field strength incompatible elements. For example, hafnium is almost always present in quantities ranging from 1 to 4%. The crystal structure of zircon is tetragonal crystal system. The natural color of zircon varies between colorless, yellow-golden, red, brown, blue, and green. Colorless specimens that show gem quality are a popular substitute for diamond and are also known as "Matura diamond".

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