Tin(II) oxide
- CAS No.
- 21651-19-4
- Chemical Name:
- Tin(II) oxide
- Synonyms
- SnO;STANNOUS OXIDE;SKIL;Oxtain;tin(ii);TIN OXIDE;Tin(Ⅱ)oxid;TIB KAT 188;Tin(Ⅱ)oxide;Zinnmonoxid
- CBNumber:
- CB5774991
- Molecular Formula:
- OSn
Lewis structure
- Molecular Weight:
- 134.71
- MDL Number:
- MFCD00011243
- MOL File:
- 21651-19-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 1080 °C | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Density | 6,95 g/cm3 | ||||||||||||||
| storage temp. | Store at RT. | ||||||||||||||
| solubility | insoluble in H2O, ethanol; soluble in acid solutions | ||||||||||||||
| form | powder | ||||||||||||||
| color | Blue-black | ||||||||||||||
| Specific Gravity | 6.95 | ||||||||||||||
| Water Solubility | Insoluble in water, and alcohol. | ||||||||||||||
| Thermal Conductivity | 31.38 W/(m·K) | ||||||||||||||
| Specific Heat Capacity | Cp(crystal): 0.33 J/(g·K); Cp(gas): 0.23 J/(g·K), at 25℃ | ||||||||||||||
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions | ||||||||||||||
| Crystal Structure | PbO type | ||||||||||||||
| crystal system | square | ||||||||||||||
| Merck | 14,8787 | ||||||||||||||
| Space group | P4/nmm | ||||||||||||||
| Lattice constant |
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| Exposure limits |
ACGIH TLV-TWA:2 mg/m3,as Sn,Inhalable particulate matter NIOSH REL-TWA:2 mg/m3;IDLH:100 mg/m3 |
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| Stability | Stable. Incompatible with strong acids, strong bases. | ||||||||||||||
| InChI | 1S/O.Sn | ||||||||||||||
| InChIKey | QHGNHLZPVBIIPX-UHFFFAOYSA-N | ||||||||||||||
| SMILES | O=[SnH2] | ||||||||||||||
| CAS DataBase Reference | 21651-19-4(CAS DataBase Reference) | ||||||||||||||
| FDA UNII | JB2MV9I3LS | ||||||||||||||
| EPA Substance Registry System | Stannous oxide (21651-19-4) | ||||||||||||||
| UNSPSC Code | 12352303 | ||||||||||||||
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H317-H319-H372 | |||||||||
| Precautionary statements | P260-P280-P301+P312-P302+P352-P305+P351+P338-P314 | |||||||||
| Safety Statements | 24/25 | |||||||||
| OEB | B | |||||||||
| OEL | TWA: 2 mg/m3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | XQ3700000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 28259085 | |||||||||
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
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| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Skin Sens. 1 STOT RE 1 |
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| REACH Registrations | Active | |||||||||
| NFPA 704 |
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Tin(II) oxide price More Price(40)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | GF03090136 | Tin oxide powder,max.particlesize150micron,weight200 g | 1ea | $576 | 2026-04-30 | Buy | |
| Sigma-Aldrich | 244643 | Tin(II) oxide ≤60 micron particle size, powder, 97% | 21651-19-4 | 100g | $88.5 | 2026-04-30 | Buy |
| Sigma-Aldrich | 244643 | Tin(II) oxide ≤60 micron particle size, powder, 97% | 21651-19-4 | 500g | $353 | 2026-04-30 | Buy |
| Strem Chemicals | 93-5039 | Tin(II) oxide, 98% (99+%-Sn) (99+%-Sn) | 21651-19-4 | 50g | $45 | 2026-04-30 | Buy |
| Strem Chemicals | 93-5039 | Tin(II) oxide, 98% (99+%-Sn) (99+%-Sn) | 21651-19-4 | 250g | $170 | 2026-04-30 | Buy |
Tin(II) oxide Chemical Properties,Uses,Production
Physical Properties
Bluish-black powder; tetragonal crystals; density 6.45 g/cm3; decomposes at 1,080°C; insoluble in water; dissolves in acids to form Sn2+ and in base to form stannite ion, Sn(OH)3–.
Uses
Tin(II) oxide is a reducing agent; and is used in preparing other tin(II) salts. Also, it is used to make soft abrasive putty powder.
Preparation
Tin(II) oxide is prepared by heating tin(II) hydroxide. The latter is obtained as a white precipitate by reacting Sn2+ ions with hydroxide ions:
Sn2+(aq) + 2OH¯(aq) → Sn(OH)2 (s)
Chemical Properties
black crystals with a characteristic odour. Tin oxide is insoluble in water but soluble in acids and alkalis and slightly soluble in ammonium chloride. Tin oxide is incompatible with acids and/or alkalis.
Uses
Reducing agent; preparation of stannous salts.
Uses
Tin(II) oxide is used as reducing agent, soft abrasive, and in preparation of stannous salts. It is used in the manufacture of copper ruby glass, and for illumination with UV light.
General Description
Brownish-black powder or black to blue-black crystalline solid. Mp: 1080°C (decomposes); density: 6.45 g cm-3. Insoluble in water.
Reactivity Profile
TIN(II) OXIDE is a reducing agent. Unstable in air due to slow oxidation to tin(IV) oxide. At 300°C this oxidation proceeds incandescently. Incompatible with strong oxidizing agents. Reacts with acids and with strong bases.
Tin(II) oxide Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Jiuke Chemical Co. LTD | 0370-2071226 17303700913 | 954866649@qq.com | China | 98 | 58 |
| BROFOS NANOTECHNOLOGY(NINGBO)CO ,LTD. | 0574-62615397 17757424292 | brofosnano@foxmail.com | China | 206 | 58 |
| Yumu (Ningbo) New Materials Co., Ltd. | 13116661121 | yumuningbo@foxmail.com | China | 146 | 58 |
| Zhejiang Zhongchuan New Materials Technology Co., Ltd. | 13116663360 13116663360 | 2083836308@qq.com | China | 109 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| INTATRADE GmbH | +49 3493/605464 | sales@intatrade.de | Germany | 3563 | 66 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
View Lastest Price from Tin(II) oxide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-06-27 | Tin(II) oxide
21651-19-4
|
1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd | ||
 |
2025-06-20 | Tin(II) oxide
21651-19-4
|
$1.00-10.00 | 1kg | 0.99 | 10 tons | Hebei Yanxi Chemical Co., Ltd. | |
 |
2021-07-13 | TIN(II) OXIDE
21651-19-4
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd |
-
- Tin(II) oxide
21651-19-4
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Tin(II) oxide
21651-19-4
- $1.00-10.00
- 0.99
- Hebei Yanxi Chemical Co., Ltd.
-
- TIN(II) OXIDE
21651-19-4
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
