[11] Dissolving the solidified SnO2/NaOH melt in water gives Na2[Sn(OH)6], "preparing salt," which is used in the dye industry.

[9] Tin(IV) oxide has long been used as an opacifier and as a white colorant in ceramic glazes.

This has probably led to the discovery of the pigment lead-tin-yellow, which was produced using tin(IV) oxide as a compound.

[18] Although dependent on the other constituents the solubility of tin oxide in glaze melts is generally low.

Its solubility is increased by Na2O, K2O and B2O3, and reduced by CaO, BaO, ZnO, Al2O3, and to a limited extent PbO.

[20] A German by the name of Kuster first introduced its use to London in 1533 and by means of it alone, the color scarlet was produced there.

[9] Thicker layers doped with Sb or F ions are electrically conducting and used in electroluminescent devices and photovoltaics.

In these the sensor area is heated to a constant temperature (few hundred °C) and in the presence of a combustible gas the electrical resistivity drops.

[23] Room temperature gas sensors are also being developed using reduced graphene oxide-SnO2 composites(e.g. for ethanol detection).