マグネシウムセレニド
マグネシウムセレニド 価格
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マグネシウムセレニド 化学特性,用途語,生産方法
説明
Magnesium selenide has the molecular formula of
MgSe and the molecular weight of 103.2652 g/mol. It
is a stable, light gray to brown crystalline powder with
a refractive index, πD=2.44. Its density is 4.21 g/cm
3
and it decomposes in water:
MgSe+ 2H2O ? Mg(OH)2+H2Se
Thus, it cannot be prepared by bubbling H2Se gas
through a soluble Mg
2+
aqueous solution. MgSe can be
prepared by a variety of other methods. Among the
easiest are the reaction of magnesium oxide and selenium.
Alternately, the two elements can be reacted
together to form the selenide:
MgO(solid)+ Se(solid)+ heat
? MgSe(solid)+ SeO2(gas)
Mg(solid)+ Se(solid)+ heat ? MgSe(solid)
In the first reaction, Se melts at 225°C while the MgO
is stable. Selenium dioxide sublimes at 320°C. The reaction
is carried out in an inert atmosphere at about
550°C. If a tube furnace is used, crystals of SeO2 appear
at the cool end of the tube. In the second reaction, an
inert atmosphere is mandatory and the reaction temperature
is also 550°C (which is below the melting point of
Mg metal).
Magnesium selenide has the CAS number of 1313-
04-8. It is not stable in air and reacts with moisture
to form H2Se, a foul-smelling and toxic gas:
MgSe+H2O ? Mg(OH)2
+H2Se
化学的特性
light brown powder(s); unstable in air [MER06]
マグネシウムセレニド 上流と下流の製品情報
原材料
準備製品
マグネシウムセレニド 生産企業
Global( 6)Suppliers
1313-04-8(マグネシウムセレニド)キーワード:
- 1313-04-8
- magnesium selenide
- magnesium(III)hydrideselenide
- マグネシウムセレニド
- セレン化マグネシウム
- magnesium selenide
- セラニリデンマグネシウム