Definition
Tin (Sn, from stannum) is the 49th most abundant element in the Earth’s crust, where it occurs primarily as a mineral containing tin dioxide (SnO2). In its elemental form, tin is a soft, silver-white metal which is relatively inert toward air and water. Tin is a main group metal (atomic number 50) and appears in its inorganic and organic compounds in two oxidation states: +2 and the more stable +4. While elemental tin and the inorganic tin compounds are considered relatively nontoxic, the more lipid-soluble organic tin species exhibit a variety of distinct toxic reactions. Generally, tri-substituted (R3SnX) and disubstituted (R2SnX2) organotins are more toxic than mono-substituted (RSnX3) tin species. Toxicity decreases with increasing alkyl chain length independent on the counter ions (Gajda and Jancsó 2010).
Exposure
Human exposure to tin arises from the release of the metal and its compounds from natural and anthropogenic sources....
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Dopp, E., Rettenmeier, A.W. (2013). Tin, Toxicity. In: Kretsinger, R.H., Uversky, V.N., Permyakov, E.A. (eds) Encyclopedia of Metalloproteins. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-1533-6_118
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