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

Sb2O3 (Antimony Oxide)

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-Antimony oxide is used as an opacifier in low fire glazes and porcelain enamel (mainly leadless but it has been replaced to an extent by titania). Antimony is easily reducible; thus an oxidizing agent like potassium nitrate may be required to prevent it from going into solution and losing its opacifying power and affecting color.

-It is not useful in glazes over cone 1 due to volatilization.

-Antimony can be used as a yellow body stain in combination with rutile or titanium.

-Antimony will bleach the surface of low fire red-burning clay to a buff color to produce variegated coloration.

-The glass industry uses antimony as a decolorizing and fining agent to clarify glasses and as a stabilizing agent in the production of emerald green glass.

-Antimony has a low thermal expansion and reduces crazing.

Mechanisms

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By Tony Hansen



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