818-08-6

Basic information

• Product Name: Dibutyltin oxide
• Synonyms: dibutyl-tioxide;di-n-butylslannicoxide;di-n-butyl-zinn-oxyd;di-n-dibutyltin;di-n-dibutyltinoxide;kyslicnikdi-n-butylcinicity;Stannane,dibutyloxo-;DIBUTYLTIN OXIDE
• CAS NO: 818-08-6
• Molecular Formula: C₈H₁₈OSn
• Molecular Weight: 248.94
• EINECS: 212-449-1
• Product Categories: Alkyl Metals;Biochemistry;Classes of Metal Compounds;Grignard Reagents & Alkyl Metals;Reagents for Oligosaccharide Synthesis;Sn (Tin) Compounds;Synthetic Organic Chemistry;Typical Metal Compounds;organotin compound;heat stabilizer;used as disinfectants on surfaces such as hospital floors and sports arenas, combined with gram negative bactericides;Miscellaneous Reagents, Pharmaceuticals, Intermediates & Fine Chemicals
• Mol File: 818-08-6.mol
• Article Data: 11

Chemical Properties

• Melting Point: ≥300 °C(lit.)
• Boiling Point: >300°C
• Flash Point: 81-83°C
• Appearance: White/Powder
• Density: 1,5 g/cm3
• Vapor Pressure: 0Pa at 25℃
• Storage Temp.: Store below +30°C.
• Water Solubility: 4.0 mg/L (20 ºC)
• BRN: 4126243
• CAS DataBase Reference: Dibutyltin oxide(CAS DataBase Reference)
• NIST Chemistry Reference: Dibutyltin oxide(818-08-6)
• EPA Substance Registry System: Dibutyltin oxide(818-08-6)

Safety Data

• Hazard Codes: T,N
• Statements: 25-68-50/53-48/25-43-41-38-61-60
• Safety Statements: 36/37/39-45-24/25-61-60-29-26-53
• RIDADR: UN 3146 6.1/PG 2
• WGK Germany: 3
• RTECS: WH7175000
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: II
• Hazardous Substances Data: 818-08-6(Hazardous Substances Data)

Usage

Chemical Properties

Different sources of media describe the Chemical Properties of 818-08-6 differently. You can refer to the following data:
1. 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.
2. white fine powder

Uses

Different sources of media describe the Uses of 818-08-6 differently. You can refer to the following data:
1. Dibutyltin oxide can be used as the catalyst in organic reaction.
2. Dibutyltin oxide is used in studies pertaining to discovering novel antitumor agents. Antifungal activity.
3. Di-n-butyltin oxide is used as a reagent and a catalyst. It is particularly useful in regioselective alkylation, acylation and sulfonation reactions for starting materials containing alcohol functional groups. It is used in studies pertaining to discovering novel antitumor agents, antifungal activity.

Flammability and Explosibility

Nonflammable

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.

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.]

InChI:InChI=1/2C4H9.O.Sn/c2*1-3-4-2;;/h2*1,3-4H2,2H3;;/rC8H18OSn/c1-3-5-7-10(9)8-6-4-2/h3-8H2,1-2H3

Upstream product

• 7789-23-3 potassium fluoride 
• 7732-18-5 water 
• 2127-90-4 bis(trifluorovinyl)di-n-butyltin 
• 17523-65-8 bis(phenyl-o-carboranyl)-dibutyl stannane 
• 683-18-1 dibutyltin chloride 
• 1310-73-2 sodium hydroxide 
• 2602-56-4 dibutyltin chloride 
• 14937-35-0 tributyltin oxide 
• 153465-07-7 dibutyltin dideuteride 
• 134-81-6 benzil 
• 22945-91-1 (C₄H₉)2Sn(NHSO₂C₆H₄-p-CH₃)2 
• 5054-47-7 dibutyl-bis(hexyn-1-yl)tin 
• 5054-46-6 Dibutyl-di-pent-1-inyl-zinn 
• 19127-46-9 diethyl-dibenzyl stannane 

Downstream Products

• 146608-95-9 ethyl 3-O-benzyl-4,6-O-benzylidene-1-thio-β-D-glucopyranoside 
• 32849-37-9 di-n-butylbis(thiophenoxyacetato)tin(IV) 
• 878794-25-3 (C₄H₉)2Sn⁽²⁺⁾*HOOCCH(S)CH₂COO^(2-) = [(C₄H₉)2Sn(HOOCCH(S)CH₂COO)] 
• 225117-92-0 [((dl-mandelate)(n-Bu)2Sn)2O] 
• 70841-18-8 di-n-butyltin di-p-bromobenzoate 
• 1067-33-0 dibutyltin diacetate 
• 28215-30-7 (C₄H₉)2Sn((CH₃)ClC₆H₃OCH₂COO)2 
• 709614-33-5 ([(n-Bu)2Sn(2-naphthoxyacetato)]2O)2*(benzene) 
• 5271-60-3 1,1,6,6-tetra-n-butyl-1,6-distanna-2,5,7,10-tetraoxacyclodecane 
• 33335-96-5 ((C₄H₉)2Sn(OC₆H₅))4O₂ 
• 3590-59-8 2,2-dibutyl[1,3,2]dioxastannolane 
• 194807-89-1 (3aS,5R,6R,7S,7aS)-6,7-Bis-benzyloxy-5-benzyloxymethyl-2,2-dibutyl-tetrahydro-1,3,4-trioxa-2-stanna-indene 

Relevant articles and documents

Synthesis and potency study of some Dibutyltin(IV) dinitrobenzoate compounds as corrosion inhibitor for mild steel HRP in DMSO-HC1 solution

Following our succes in the synthesis of some derivatives of organotin(lV) carboxylates, in this work we reported the corrosion inhibitor study of three dibutyltin(IV) compounds using ligands of 2-, 3- And 4-nitrobenzoic acid. All the three synthesized compounds were characterized by spectroscopy techniques and also based on the microanalytical and physical data. The corrosion inhibition was evaluated with potentiodynamic polarization technique using ER644 Integrated Potentiostat eDAQ type on mild steel hot rolled plate (HRP) in DiMSO-HCl solution. The results indicated that the these compounds showed interesting inhibition activity with percentage of inhibition efficiency (% IE) of 59.3, 60.5 and 61.2 % for dibutyltin(IV) 2-nitrobenzoate, 3-nitrobenzoate and 4-nitrobenzoate, respectively. These three dibutyltin(IV) compounds have been shown promising to be potentially used as anticorrosion inhibitors.

Preparation method of dibutyltin oxide

The invention provides a preparation method of dibutyltin oxide. The dibutyltin oxide is at least prepared by (1), synthesis of tetrabutyl tin; (2), synthesis of dibutyl stannous chloride; (3), synthesis of dibutyltin oxide, wherein catalyst used in step (2) is composite of modified nano-crystalline cellulose and aluminium chloride. The dibutyltin oxide is applied to electric paint and electrophoretic paint fields.

The synthesis, characterization and comparative anticorrosion study of some organotin(IV) 4-chlorobenzoates

The synthesis of 3 compounds of a series of dibutyl(IV) di-4-chlorobenzoate, diphenyl(IV) di-4-chlorobenzoate and triphenyltin(IV) 4-chlorobenzoate have successfully been performed by reacting the dibutyltin(IV) dichloride, diphenyltin(IV) dichloride and triphenyltin(IV) chloride respectively via the dibutyltin(IV) oxide, diphenyltin(IV) dihydroxide and triphenyltin(IV) hydroxide with 4-chlorobenzoic acid. All compounds synthesized were well characterized by 1H and 13C NMR, IR and UV-Vis spectroscopies as well as based on the microanalytical data. The anticorrosion activity of these compounds were tested on Hot Roller Plate (HRP) mild steel in DMSO-HCl solution using potentiodynamic method. The results revealed that the triphenyltin(IV) 4-chlorobenzoate clearly showed the strongest inhibitor activity compared to the other derivatives, while diphenyltin(IV) compounds were better than that of dibutyltin(IV) analogous. The results reported here indicated that the optimal activity were depended on the ligand attached to the metal centre and might also be related to the number of carbon atoms present in the organotin(IV) used.