BaO | Bi2O3 | CaO | K2O | Li2O | MgO | Na2O | PbO | SrO | ZnO

SnO2 | TiO2 | ZrO2

CoO | Cr2O3 | CuO | Fe2O3 | FeO | MnO | Ni2O3 | V2O5

C | Cl | CO | CO2 | H2O | LOI | O | Organics | SO3 | SO4

Ag2O | AlF3 | As2O3 | As4O6 | Au2O3 | BaF2 | BeO | CaF2 | CdO | CeO2 | CrO3 | Cs2O | Cu2O | CuCO3 | Dy2O3 | Er2O3 | Eu2O3 | F | Fr2O | Free SiO2 | Ga2O3 | GdO3 | GeO2 | HfO2 | HgO | Ho2O3 | In2O3 | IrO2 | KF | KNaO | La2O3 | Lu2O3 | Mn2O3 | MnO2 | MoO3 | N2O5 | NaF | Nb2O5 | Nd2O3 | NiO | OsO2 | P2O5 | Pa2O5 | PbF2 | PdO | PmO3 | PO4 | Pr2O3 | PrO2 | PtO2 | RaO | Rb2O | Re2O7 | RhO3 | RuO2 | Sb2O3 | Sb2O5 | Sc2O3 | Se | SeO2 | Sm2O3 | Ta2O5 | Tb2O3 | Tc2O7 | ThO2 | Tl2O | Tm2O3 | U3O8 | UO2 | WO3 | Y2O3 | Yb2O3 | ZrO

Se (Selenium)

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FamilyOther
Weight111.200

-Semi-metallic element of the sulfur group. Its main value as a colorant depends on a reduction or mildly oxidizing atmosphere to maintain its metallic state.

-With cobalt it is a good decolorizer for glass because it produces a pink which is close to complementary of iron green (thus canceling it out).

-Used as a colorant in making rose and ruby glass.

-Used in some special purpose stains.

Mechanisms

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By Tony Hansen



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