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| CAS No.: | 21651-19-4 |
|---|---|
| Name: | TIN(II) OXIDE |
| Molecular Structure: | |
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| Formula: | OSn |
| Molecular Weight: | 136.725 |
| Synonyms: | Ceramace C10;Stannous oxide;Tegokat 188;Tin monoxide;Tin oxide (Sn2O2);Tin(2+)oxide;Tin(II) oxide; |
| EINECS: | 244-499-5 |
| Density: | 6.95 g/cm3 |
| Melting Point: | 1080 °C |
| Solubility: | Insoluble in water and alkali |
| Appearance: | black crystals with a characteristic odour |
| Safety: | 24/25 |
| Transport Information: | 25kgs |
| PSA: | 17.07000 |
| LogP: | -0.49960 |
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Specification
The systematic name of Stannous oxide is Tin monoxide. With the CAS registry number 21651-19-4 and EINECS 244-499-5, it is also named as Tin(II) oxide. The product's categories are Inorganics; Metal and Ceramic Science; Oxides; Tin. It is black crystals with a characteristic odour, which is insoluble in water, alkali and acid. And this chemical is a reducing agent which is unstable in air due to slow oxidation to tin(IV) oxide. Additionally, it should be sealed in the container and stored in the cool and dry place.
Preparation of Stannous oxide: The stannous chloride dihydrate dissolves in hot concentrated hydrochloric acid as little as possible. Slowly adding the sodium carbonate aqueous solution under stirring. When the mixture shows alkaline by phenolphthalein test, you must stop adding. Then heating 2 ~ 3h, the colorless hydrated oxides can convert to black blue SnO quantitatively. Resultant is washed several times with water and dried at 110 °C. The yield is about 80%. Stannous oxide also can be prepared by heating the tin(II) oxide hydrate, SnO.xH2O (x<1) precipitated when a tin(II) salt is reacted with an alkali hydroxide such as NaOH.
Uses of Stannous oxide: The dominant use of stannous oxide is as a precursor in manufacturing of other, typically divalent, tin compounds or salts. It is used in the production of catalyst, reducing agent and stannous salt. It is also used to prepare stannous fluoborate in electroplating and other soluble stannous salt.
People can use the following data to convert to the molecule structure.
1. SMILES:O=[Sn]
2. InChI:InChI=1/O.Sn/rOSn/c1-2
3. InChIKey:QHGNHLZPVBIIPX-SXOSAPQQAP