Selenium Isotopes

Selenium has six by itself occurring isotopes, 5 of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The endure three aswell action as fission products, forth with 79Se, which has a half-life of 327,000 years.

The final by itself occurring isotope, 82Se, has a actual continued half-life (~1020 yr, corrupt via bifold beta adulteration to 82Kr), which, for applied purposes, can be advised to be stable. Twenty-three added ambiguous isotopes accept been characterized.

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About Ferrous iodide

When the accumulation alcove a red heat, balance of iodine is added and the accomplished acrimonious until iodine vapour ceases to escape. On cooling, a blah apparent accumulation is obtained, which melts at 177° C.

Ferrous iodide is actual deliquescent, but if kept in a desiccator turns white and afterwards evolves iodine, acceptable blah or black. The white admixture is believed to be the dihydrate, FeI2.2H2O.

The anhydrous alkali readily absorbs ammonia, basic the hexammoniate, FeI2.6NH3, as a abundant powder. It is addle by water, and is adapted by bromine vapour into Ferrous bromide, ammonium bromide, and ammonium bromo-iodo-bromide, NH4Br.IBr.

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Zirconium Production

Zirconium is a by-product of the mining and processing of the titanium minerals ilmenite and rutile, as able-bodied as tin mining.

Most zircon is acclimated anon in bartering applications, but a baby allotment is adapted to the metal. A lot of Zr metal is produced by the abridgement of the zirconium(IV) chloride with magnesium metal in the Kroll process.

Using alluring separation, the titanium ores ilmenite and rutile are removed.The consistent metal is sintered until abundantly adaptable for metalworking.

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Palladium Electronics

The second-biggest appliance of aegis in electronics is in the accomplish of multilayer bowl capacitors, in which aegis (and palladium-silver alloys) are acclimated as electrodes.

Palladium (sometimes adulterated with nickel) is acclimated in adapter platings in customer electronics.

It is aswell acclimated in plating of cyberbanking apparatus and in soldering materials. The cyberbanking area captivated 1.07 actor troy ounces (33.2 tonnes) of aegis in 2006, according to a Johnson Matthey report.

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Indium Uses

Most indium is acclimated to accomplish indium tin oxide (ITO), which is an important allotment of blow screens, flatscreen TVs and solar panels.

Indium nitride, phosphide and antimonide are semiconductors acclimated in transistors and microchips.This is because it conducts electricity, bonds acerb to bottle and is transparent.

It has aswell been acclimated to covering brawl bearings in Formula 1 antagonism cars because of its low friction.Indium metal sticks to bottle and can be acclimated to accord a mirror accomplishment to windows of alpine buildings, and as a careful blur on welders’ goggles.

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Indium Physical

Indium is a actual soft, silvery-white, awful ductile, almost attenuate post-transition metal with a ablaze luster.

Like gallium, indium is able to wet glass. Like both, indium has a low melting point, 156.60 °C (313.88 °F); college than its lighter homologue, gallium, but lower than its added homologue, thallium, and lower than tin.

It is so bendable (Mohs acerbity 1.2) that the metal can be cut with a knife, as can sodium. It aswell leaves a arresting band on paper.Like tin, if it is angled indium emits a acute "cry".

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