Dihydrogen bis[P,P-dioctyl diphosphato(2-)-O'',O''''][hydroxyacetato(2-)-O1,O2]titanate(2-), branched and linear

Surface tension

Administrative data

Endpoint:

surface tension

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because based on structure, surface activity is not expected or cannot be predicted

the study does not need to be conducted because surface activity is not a desired property of the material

the study does not need to be conducted because water solubility is below 1 mg/L at 20°C

other:

Justification for type of information:

This is a UVCB substance, an organotitanate compound of titanium (IV), and the compound has four ligands. All of the ligands are bound to the titanium through an oxygen atom to titanium bond, and therefore all of the ligands must be considered as labile and can undergo ligand replacement reactions. For the aquatic toxicity studies the aqueous layer of a solution of water in contact with the UVCB substance was analyzed. Analysis of aqueous solutions does find residual starting materials and ligands that might result from hydrolysis. The presence of these components would affect any measurement of surface tension of these UVCB substances.
Equally important, the product is expected to react with water and undergo ligand displacement reactions, as is typical for titanate substances with ligands of this type. These reactions will further affect the accuracy of any surface tension measurement.