Tin(II) oxide
IUPAC nameTin(II) oxideOther namesStannous oxide, believe monoxideIdentifiersCAS number21651-19-4PubChem88989EC number244-499-5RTECS numberXQ3700000SMILESO=
PropertiesMolecular formulaSnOMolar mass134.709 g/molAppearanceblack or red powder when anhydrous, white once hydratedDensity6.45 g/cm3Melting point

1080 °C, 1353 K, 1976 °F

Solubility in waterinsoluble
−19.0·10−6 cm3/molStructureCrystal structuretetragonalThermochemistryStd enthalpy offormation ΔfHo298−285 kJ·mol−1Standard molarentropy So29856 J·mol−1·K−1HazardsFlash pointNon-flammableU.S. Permissibleexposure border (PEL)noneRelated compoundsOther anionsTin sulfideTin selenideTin tellurideOther cationsCarbon monoxideSilicon monoxideGermanium(II) oxideLead(II) oxideExcept where noted otherwise, data are provided for materials in their typical state (at 25 °C, 100 kPa)

Tin(II) oxide, also known together stannous oxide, is a chemical compound. Its chemical formula is SnO. It has tin in one oxidation state the +2. It additionally has oxide ions in it.

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It is normally a blue-black solid. It have the right to be red however the red kind is an ext unstable. The burns in air through a green flame to do tin(IV) oxide. It is a reducing agent. It is rarer 보다 tin(IV) oxide. It dissolves in acids to do a colorless solution.


It deserve to be make by reacting sulfuric acid with tin and reacting the tin(II) sulfate made with sodium hydroxide to make the tin(II) oxide hydrate. This is heated to obtain the tin(II) oxide.


It is offered in touchscreens. The is supplied to do a glass with gold in it called ruby glass.

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