Tritiated water
Radioactive form of water in which the usual protium atoms are replaced with tritium / From Wikipedia, the free encyclopedia
Not to be confused with Heavy water or Semiheavy water.
Tritiated water is a radioactive form of water in which the usual protium atoms are replaced with tritium atoms. In its pure form it may be called tritium oxide (T2O or 3H2O) or super-heavy water. Pure T2O is a colorless liquid,[1] and it is corrosive due to self-radiolysis. Diluted, tritiated water is mainly H2O plus some HTO (3HOH). 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.
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Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
[3H]2-water | |
Systematic IUPAC name
(3H2)Water | |
Other names
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Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChemSpider |
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MeSH | tritium+oxide |
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |
T2O or 3H2O | |
Molar mass | 22.0315 g·mol−1 |
Appearance | Colorless liquid[1] |
Density | 1.21 g/mL |
Melting point | 4.48 °C (40.06 °F; 277.63 K)[2] |
Boiling point | 101.51 °C (214.72 °F; 374.66 K) |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
corrosive and radioactive |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The name super-heavy water helps distinguish the tritiated material from heavy water, which contains deuterium instead.