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ChemicalBook--->CAS DataBase List--->818-08-6

818-08-6

818-08-6 Structure

818-08-6 Structure
IdentificationMore
[Name]

Dibutyltin oxide
[CAS]

818-08-6
[Synonyms]

DIBUTYLOXOSTANNANE
DIBUTYLOXOTIN
DIBUTYLTIN(IV) OXIDE
DIBUTYLTIN OXIDE
DI-N-BUTYLTIN OXIDE
dbot
dbto
dibutyloxideoftin
dibutyloxo-stannan
dibutyloxo-ti
dibutylstannaneoxide
dibutylstanniumoxide
dibutyltinmonoxide
dibutyl-tioxide
di-n-butylslannicoxide
di-n-butyl-zinn-oxyd
di-n-dibutyltin
di-n-dibutyltinoxide
kyslicnikdi-n-butylcinicity
Stannane,dibutyloxo-
[EINECS(EC#)]

212-449-1
[Molecular Formula]

C8H18OSn
[MDL Number]

MFCD00001992
[Molecular Weight]

248.94
[MOL File]

818-08-6.mol
Chemical PropertiesBack Directory
[Appearance]

white fine powder
[Melting point ]

≥300 °C(lit.)
[Boiling point ]

>300°C
[density ]

1,5 g/cm3
[vapor pressure ]

0Pa@25°C
[Fp ]

81-83°C
[storage temp. ]

Store below +30°C.
[solubility ]

Soluble in water 4.0g/L @ 20°C.
[form ]

Powder
[color ]

White
[Specific Gravity]

1.58
[Water Solubility ]

4.0 mg/L (20 ºC)
[BRN ]

4126243
[CAS DataBase Reference]

818-08-6(CAS DataBase Reference)
[EPA Substance Registry System]

818-08-6(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T
[Risk Statements ]

R25:Toxic if swallowed.
[Safety Statements ]

S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S24/25:Avoid contact with skin and eyes .
[RIDADR ]

UN 3146 6.1/PG 2
[WGK Germany ]

3
[RTECS ]

WH7175000
[Autoignition Temperature]

525 °C
[TSCA ]

Yes
[HazardClass ]

6.1
[PackingGroup ]

II
[HS Code ]

29310095
[Safety Profile]

Poison by ingestion and intraperitoneal routes. A skin and eye irritant. Flammable when exposed to flame; can react with oxidizing materials. To fight fire, use dry chemical, fog, CO2. When heated to decomposition it emits acrid smoke and irritating fumes. See also TIN COMPOUNDS.
[Toxicity]

LD50 orally in Rabbit: 487 mg/kg LD50 dermal Rabbit > 2000 mg/kg
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sodium hydroxide-->Tin-->1-Bromobutane-->1-Chlorobutane-->CHLORINATED PARAFFIN-->TETRABUTYLTIN-->Dibutyltin dichloride-->Stannane, dibutylchloro--->butyltricyclohexylstannane-->Butyltin trichloride
[Preparation Products]

Dibutyltin dilaurate-->Dibutyltin maleate-->Tributyltin Hydride
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Dibutyloxotin(818-08-6).msds
Questions And AnswerBack Directory
[Chemical Properties]

Dibutyltin oxide (Bu2SnO, C8H18OSn, CAS registry No. 818-08-6) is a white fine powder. Its flash point is 81-83 °C. The solubility of HNQ is 4.0 mg/L in water at 20 °C. It is flammable when exposed to flame. It can react with oxidizing materials. To fight fire, use dry chemical, fog, CO2. When heated to decomposition, it emits acrid smoke and irritating fumes.

[Uses]

Dibutyltin oxide can be used as the catalyst in organic reaction.

Spectrum DetailBack Directory
[Spectrum Detail]

Dibutyltin oxide(818-08-6)IR1
Dibutyltin oxide(818-08-6)IR2
Dibutyltin oxide(818-08-6)Raman
Hazard InformationBack Directory
[Flammability and Explosibility]

Nonflammable(100%)
[Purification Methods]

It is prepared by hydrolysis of di-n-butyltin dichloride with KOH. Hence wash it with a little aqueous M KOH, then H2O and dry at ~80o/10mm until the IR is free from OH bands. [Cummings Aust J Chem 18 98 1965, Beilstein 4 I 588.]
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