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EC number: 206-108-6
CAS number: 301-10-0
Tin bis(2-ethylhexanoate) (i.e.,Stannous Octoate) is a clear to pale
yellow, viscous liquid at typical ambient temperatures, and is
manufactured and used only in this liquid form. The substance does not
boil, as thermal decomposition occurs at temperatures above
approximately 150 °C
in the presence of oxygen. The substance has a relative density of 1.26,
which along with its insolubility in water, causes it to sink as a dense
non-aqueous phase liquid in aqueous media. Once introduced to water, the
substance is known to dissociate into its 2-ethylhexanoate and Sn(II)
components. The measured dissociation constant for the intact salt is
5.09, whereas that for the free acid form of 2-ethylhexanoic acid is
4.8. Whereas the Sn(II) component occurs initially in water as Sn(OH)2,
this species is expected to spontaneously oxidize in oxygenated water to
form the insoluble inorganic solid Sn(IV)O2. The 2 -ethyl
hexanoate component has moderate solubility and low octanol-water
partition coefficient (log Kow = 2.64). These properties result in a low
potential for adsorption to organic matter of soil and sediment. The Tin
bis(2-ethylhexanoate) substance exhibits a high flash point (137 °C),
and high auto-ignition temperature (> 400 °C),
and is therefore regarded as non-flammable liquid. The substance does
not possess atoms or functional groups which are known to contribute to
pyrophoric or explosive properties, and testing has confirmed the lack
of these hazardous properties.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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