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ChemicalBook--->CAS DataBase List--->21651-19-4

21651-19-4

21651-19-4 Structure

21651-19-4 Structure
IdentificationMore
[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 PropertiesBack 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.
[Crystal Structure]

PbO type
[Hydrolytic Sensitivity]

4: no reaction with water under neutral conditions
[crystal system]

square
[Merck ]

14,8787
[Space group]

P4/nmm
[Lattice constant]

a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.380290.380290.483829090900.07
[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 DataBack Directory
[Safety Statements ]

S24/25:Avoid contact with skin and eyes .
[OEB]

B
[OEL]

TWA: 2 mg/m3
[WGK Germany ]

3
[RTECS ]

XQ3700000
[TSCA ]

Yes
[HS Code ]

28259085
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Tin
[Preparation Products]

Bis(2-ethylhexyl) phthalate
Hazard InformationBack 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 AnswerBack 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)
Spectrum DetailBack Directory
[Spectrum Detail]

TIN(II) OXIDE(21651-19-4)IR1
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Tin(II) oxide, 98+%(21651-19-4)
[Alfa Aesar]

Tin(II) oxide, 99.9% (metals basis)(21651-19-4)
[Sigma Aldrich]

21651-19-4(sigmaaldrich)
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