Tritiated water
3957700
225605850
2008-07-14T14:58:29Z
80.168.88.50
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| ImageFile = Tritium-oxide-2D.png
| ImageFile = Water molecule 3D.svg
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| Section1 = {{Chembox Identifiers
| CASNo = 14940-65-9
| PubChem = 104752
| SMILES =
| MeSHName = tritium+oxide
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| Section2 = {{Chembox Properties
| Formula = T<sub>2</sub>O or <sup>3</sup>H<sub>2</sub>O
| MolarMass = 22.0315
| Appearance =
| Density =
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| Section3 = {{Chembox Hazards
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{{portalpar|Water|Drinking water.jpg}}
'''Tritiated water''' is a form of [[Water (molecule)|water]] where the usual hydrogen atoms are replaced with [[tritium]]. In its pure form it may be called '''tritium oxide''' (T<sub>2</sub>O or <sup>3</sup>H<sub>2</sub>O) or '''super-heavy water'''. Pure T<sub>2</sub>O is corrosive due to self-[[radiolysis]]. Diluted, tritiated water is mainly H<sub>2</sub>O plus some HTO (<sup>3</sup>HOH). It is also used as a tracer for water transport studies in life-science research. Furthermore, since it naturally occurs in minute quantities, it can be used to determine the age of various water-based liquids, such as vintage [[wines]].
It should not be confused with [[heavy water]], which is deuterium oxide.
==Applications==
Tritiated water can be used to measure the [[body water|total volume of water in one's body]]. Tritiated water distributes itself into all body compartments relatively quickly. The concentration of tritiated water in [[urine]] is assumed to be similar to the concentration of tritiated water in the body. Knowing the original amount of tritiated water that was ingested and the concentration, one can calculate the volume of water in the body.
* Amount of tritiated water (mg) = Concentration of tritiated water (mg/ml) x Volume of body water (ml)
* Volume of body water (ml) = [Amount of tritiated water (mg) - Amount excreted (mg)] / Concentration of tritiated water (mg/ml)
[[Category:Nuclear materials]]
[[Category:Forms of water]]
{{Inorganic-compound-stub}}
[[cs:Tritiová voda]]
[[de:Tritiumoxid]]
[[it:Acqua superpesante]]
[[nds:Tritiumoxid]]
[[sv:Tritierat vatten]]