| Identification | More | [Name]
TIN(II) OXIDE | [CAS]
21651-19-4 | [Synonyms]
STANNOUS MONOXIDE
STANNOUS OXIDE
TIN(+2)OXIDE
TIN(III) OXIDE
TIN(II) OXIDE
TIN MONOXIDE
TIN OXIDE
SnO
Tin oxide (SnO)
tin(ii)
tin(ii)oxide(assn)
tinoxide(sn2o2)
tinoxide(sno)
Tin protoxide
Tin(Ⅱ)oxide
TIN(II) OXIDE, POWDER, 10 MICRON, 99+%
TIN(II) OXIDE, 99.999%
TIN(II) OXIDE PURE
Tin(Ⅱ)oxid
Tin(II)oxide,99% | [EINECS(EC#)]
244-499-5 | [Molecular Formula]
OSn | [MDL Number]
MFCD00011243 | [Molecular Weight]
134.71 | [MOL File]
21651-19-4.mol |
| Chemical Properties | Back Directory | [Appearance]
black crystals with a characteristic odour | [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 | [Stability:]
Stable. Incompatible with strong acids, strong bases. | [Water Solubility ]
Insoluble in water, and alcohol. | [Hydrolytic Sensitivity]
4: no reaction with water under neutral conditions | [Merck ]
14,8787 | [Exposure limits]
ACGIH: TWA 2 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3 | [CAS DataBase Reference]
21651-19-4(CAS DataBase Reference) | [EPA Substance Registry System]
Stannous oxide (21651-19-4) |
| Safety Data | Back Directory | [Safety Statements ]
S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
3
| [RTECS ]
XQ3700000
| [TSCA ]
Yes | [HS Code ]
28259085 |
| Hazard Information | Back Directory | [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. | [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.
|
| Questions And Answer | Back Directory | [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)
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