Tetrabutyltin is the organotin compound with the molecular formula Sn(CH2 CH2 CH2 CH3 )4 or SnBu4 , where Bu is butyl −CH2 CH2 CH2 CH3 . Sometimes abbreviated TTBT, it is a colorless, lipophilic oil.[ 3]
Quick Facts Names, Identifiers ...
Tetrabutyltin
Names
Preferred IUPAC name
Other names
Tetra-n -butyltinn -butylstannane
Identifiers
ChemSpider
ECHA InfoCard 100.014.510
UNII
InChI=1S/4C4H9.Sn/c4*1-3-4-2;/h4*1,3-4H2,2H3; Y
Key: AFCAKJKUYFLYFK-UHFFFAOYSA-N Y
InChI=1/4C4H9.Sn/c4*1-3-4-2;/h4*1,3-4H2,2H3;/rC16H36Sn/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4/h5-16H2,1-4H3
Key: AFCAKJKUYFLYFK-HBOYHTFSAP
Properties
Sn(CH2 CH2 CH2 CH3 )4
Molar mass g·mol−1
Appearance
Colourless liquid
Density 1.054 g/cm3
Melting point −97 °C (−143 °F; 176 K)
Boiling point 245 °C (473 °F; 518 K)
insoluble
Solubility non-polar solvents such as benzene, ether, or THF [ 1]
Hazards
GHS labelling
Danger
H301 , H312 , H315 , H319 , H410
P273 , P280 , P301+P310+P330 , P302+P352+P312 , P305+P351+P338 , P314 [ 2]
Flash point 107 °C (225 °F; 380 K)
Safety data sheet (SDS)Tetrabutyltin
Related compounds
Related tetraalkylstannanes
Except where otherwise noted, data are given for materials in their
standard state (at 25
°C [77
°F], 100
kPa).
Close
Tetrabutyltin is a precursor to tributyltin and dibutyltin compounds. By the redistribution reaction with tin(IV) chloride it forms tributyltin chloride and dibutyltin chloride. These compounds are starting materials for a wide range of organotin compounds used as stabilizers for PVC and as biocides , fungicides , wood preservatives, and (historically) marine anti-biofouling agents.[ 4]
