Triphenyltin hydroxide (TPTH)

IUPAC Name: Triphenyltin hydroxide

Source: Formerly used as a fungicide.

Summary: Triphenyltin hydroxide is an organotin that was formerly used as a fungicide. It is soluble in water up to 1.2 mg/L at 20 C and has a density of 1.54 g/mL. It has an acid dissociation constant of pKa = 5.20. The compound is expected to have very low mobility within soil. If discharged to water the compound may convert to triphenyltin oxides, hydroxides or carbonates based on the acid dissociation constant. The anions will not adsorb to suspended solids but the cations will. Photolysis of the triphenyltin cation is expected to be a major fate process in water. Bioaccumulation in organisms is expected to be high.

GHS Hazard Statement: H301, H310, H311, H315, H318, H319, H330, H335, H351, H361, H361d, H370, H371, H372, H400, H410, GHS05, GHS06, GHS07, GHS08, GHS09