Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Magnesium selenides

No experimental thermodynamic information is available for magnesium selenides. [Pg.394]


Beryllium sulfide, BeS beryllium selenide, BeSe beryllium telluride, BeTe beryllium polonide, BePo magnesium sulfide, MgS magnesium selenide, MgSe magnesium telluride, MgTe calcium sulfide, CaS (oldhamite) calcium selenide, CaSe calcium telluride, CaTe strontium sulfide, SrS strontium selenide, SrSe barium sulfide, BaS barium selenide, BaSe barium hydrosulfide, Ba(HS)2 barium hydrosulfide tetrahydrate, Ba(HS)2 H20. [Pg.29]

Many metallic selenides yield the gas when treated with dilute mineral acids. For example, when aluminium or magnesium selenide is dropped slowly into the acid a continuous stream of hydrogen selenide is generated, which can be dried by means of phosphorus pentoxide. If required in a high degree of purity, the dried gas can be liquefied, e.g. by means of a mixture of ether and solid carbon dioxide, and obtained pure by re-vaporisation.6... [Pg.312]

Aluminium and magnesium selenides are very similar light brown powders, unstable in air. Zinc and iron (ferrous) selenides are more stable in air, the zinc compound being citron-yellow and the iron compound black and metallic in appearance.8 The latter becomes brown in air owing to oxidation. Ferric selenide is difficult to obtain pure. Cadmium selenide, which is dark brown, is very stable in colour and is used as a pigment. With thallium, selenium is said to form three distinct compounds,9 but analyses of these compounds have led to discordant results. The selenides of aluminium, chromium and uranium cannot be prepared in the wet way. Nickel selenide, unlike the sulphide, shows no tendency to form a colloidal solution. [Pg.314]

It also combines with a number of metals to form compounds called selenides. An example is magnesium selenide (MgSe). One of selenium s interesting properties is its reaction with oxygen. It burns in oxygen with a bright blue flame to form selenium dioxide (Se02). Selenium dioxide has a characteristic odor of rotten horseradish. [Pg.526]

The formula for calcium sulfide is CaS and that for lithium phosphide is LisP. Predict formulas for (a) magnesium sulfide, (b) potassium phosphide, and (c) magnesium selenide. [Pg.225]

Fig. tr.1-1tr1 Band structure of magnesium sulfide, rock salt Fig. tr.l-IW Band structure of magnesium selenide, rock... [Pg.658]

Magnesium selenide MgSe 4.05 300 Zinc blende structure... [Pg.659]

Magnesium selenide Magnesium telluride MgSe MgTe 3.8 RT Zinc blende structure, Raman scattering... [Pg.660]

Write the specific chemical reactions whose enthalpy change (or negative thereof) represent the lattice energy of (a) potassium fluoride, KF (b) magnesium selenide, MgSe (c) sodium oxide, NajO (d) sodium peroxide, Na202-... [Pg.778]

Magnesium oxide Magnesium sulfide Magnesium selenide Magnesium telluride... [Pg.657]


See other pages where Magnesium selenides is mentioned: [Pg.672]    [Pg.302]    [Pg.394]    [Pg.893]    [Pg.1028]    [Pg.1911]    [Pg.724]    [Pg.716]    [Pg.915]    [Pg.184]    [Pg.225]    [Pg.655]    [Pg.656]    [Pg.656]    [Pg.657]    [Pg.657]    [Pg.175]    [Pg.700]    [Pg.798]    [Pg.769]    [Pg.655]    [Pg.656]    [Pg.656]    [Pg.657]    [Pg.762]    [Pg.796]    [Pg.716]   


SEARCH



Magnesium selenide

Magnesium selenide MgSe

Magnesium selenide properties

© 2024 chempedia.info