Tritiated 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, 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.

Not to be confused with Heavy water or Semiheavy water.
Tritium oxide
Names
IUPAC name
[3H]2-water
Systematic IUPAC name
(3H2)Water
Other names
  • Super-heavy water
  • Tritium oxide
  • Ditritium oxide
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
MeSH tritium+oxide
  • InChI=1S/H2O/h1H2/i/hT2 N
    Key: XLYOFNOQVPJJNP-PWCQTSIFSA-N N
  • [3H]O[3H]
Properties
T2O or 3H2O
Molar mass 22.0315 g·mol−1
Appearance Colorless liquid
Density 1.21 g/mL
Melting point 4.48 °C (40.06 °F; 277.63 K)

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).
N verify (what is YN ?)
Infobox references

The name super-heavy water helps distinguish the tritiated material from heavy water, which contains deuterium instead.

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