Bis(tributyltin) oxide

Bis(tributyltin) oxide Basic information
Product Name:Bis(tributyltin) oxide
Synonyms:HEXABUTYLDISTANNOXANE;HBD;CAR-BAN(R);BIS(TRI-N-BUTYLTIN) OXIDE;BIS(TRIBUTYLTIN) OXIDE;TBTO;TBTO(R);TBTO(TM)
CAS:56-35-9
MF:C24H54OSn2
MW:596.1
EINECS:200-268-0
Product Categories:organotin compound;Agro-Products;Industrial/Fine Chemicals;Aliphatics;Intermediates & Fine Chemicals;Pharmaceuticals;Organometallics
Mol File:56-35-9.mol
Bis(tributyltin) oxide Structure
Bis(tributyltin) oxide Chemical Properties
Melting point -45°C
Boiling point 180 °C2 mm Hg(lit.)
density 1.17 g/mL at 25 °C(lit.)
vapor pressure <0.01 mm Hg ( 25 °C)
refractive index n20/D 1.486(lit.)
Fp >230 °F
storage temp. +4°C
solubility Chloroform (Soluble), Methanol (Slightly)
form liquid
Specific Gravity1.170
color colorless
Water Solubility INSOLUBLE
Sensitive Air & Moisture Sensitive
Hydrolytic Sensitivity5: forms reversible hydrate
BRN 745057
Exposure limitsACGIH: TWA 0.1 mg/m3; STEL 0.2 mg/m3 (Skin)
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
Stability:Moisture Sensitive
InChIKeyAPQHKWPGGHMYKJ-UHFFFAOYSA-N
LogP3.840 (est)
CAS DataBase Reference56-35-9(CAS DataBase Reference)
NIST Chemistry ReferenceDistannoxane, hexabutyl-(56-35-9)
EPA Substance Registry SystemBis(tributyltin) oxide (56-35-9)
Safety Information
Hazard Codes T,N
Risk Statements 21-25-36/38-48/23/25-50/53
Safety Statements 35-36/37/39-45-60-61
RIDADR UN 2788 6.1/PG 2
WGK Germany 3
RTECS JN8750000
TSCA Yes
HazardClass 6.1
PackingGroup II
HS Code 29310095
Hazardous Substances Data56-35-9(Hazardous Substances Data)
ToxicityLD50 oral in rat: 87mg/kg
MSDS Information
ProviderLanguage
Hexabutyldistannoxane English
SigmaAldrich English
ACROS English
ALFA English
Bis(tributyltin) oxide Usage And Synthesis
DescriptionTBTO (bis(tri-n-butyltin)oxide) appears as thin, colourless to pale yellow, flammable and combustible liquid. It is soluble in organic solvents. TBTO, or bis(tri-n-butyltin)oxide, is an organotin compound used as a biocide, fungicide, and molluscicide. Uses of tributyltin also include as an anti-fouling chemical in marine paints for boats, anti-fungal agent in textiles and industrial water systems, in cooling tower and refrigeration water systems, wood pulp preservative in paints and paper mill systems, inner surfaces of cardboard, and in the manufacturing processes of leather goods, textiles, wood, plastics, and mothproof stored garments. In fact, TBT compounds are considered the most hazardous of all tin compounds.
Chemical PropertiesClear colorless liquid
UsesBis(tributyltin) Oxide is an organotin compound used as a fungicide and molluscicide, particularly in wood preservation. Bis(tributyltin) Oxide was used as an active component in marine antifouling paints but is not longer used due to its toxicity and is considered a severe marine pollutant.
UsesBis(tributyltin) oxide is widely used in Europe for the preservation of timber, millwork, and wood joinery, eg, window sashes and door frames. It is applied from organic solution by dipping or vacuum impregnation. It imparts resistance to attack by fungi and insects but is not suitable for underground use. An advantage of bis(tributyltin) oxide is that it does not interfere with subsequent painting or decorative staining and does not change the natural color of the wood.
UsesTributyltin oxide is used as an antifouling and biocide agent against fungi, algae and bacteria in paints and is an irritant.
DefinitionChEBI: Tributyltin oxide is an inorganic molecular entity.
General DescriptionClear pale yellow liquid. Toxic by skin absorption or inhalation of vapors. Used as a bactericide, fungicide and chemical intermediate.
Air & Water ReactionsInsoluble in water.
Reactivity ProfileBis(tributyltin) oxide may react vigorously with oxidizing agents and with reducing agents.
HazardToxic via ingestion and inhalation.
Health HazardACUTE/CHRONIC HAZARDS: Bis(tributyltin) oxide is toxic by ingestion and inhalation and is a skin and eye irritant.
Fire HazardBis(tributyltin) oxide is probably combustible.
Contact allergensTributyl tin oxide is used as an antifouling and biocide agent against fungi, algae, and bacteria, particularly in paints. Sometimes used in chemistry, tributyltin oxide is a strong irritant.
Zinc oxide Aluminum oxide Tributyltin chloride Tributylphosphine Dibutyltin oxide Bis(tributyltin) oxide ETHYLENE OXIDE (Diethoxymethyl)diphenylphosphine oxide Iron oxide Monobutyltin oxide Tributylamine NITRIC OXIDE Tributyltin Hydride Lithium oxide NITROUS OXIDE Stannic oxide HEXABUTYLDITIN BETA-DEFENSIN-3 (HUMAN)

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