Tritiated water

Tritium oxide
Names
	IUPAC name [3H]2-water
	Systematic IUPAC name (3H2)Water
	Other names Super-heavy water; Tritium oxide; Ditritium oxide;
Identifiers
CAS Number	14940-65-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:29374 ;
ChemSpider	94563 ;
MeSH	tritium+oxide
PubChem CID	104752;
CompTox Dashboard (EPA)	DTXSID80894747 ;
	InChI InChI=1S/H2O/h1H2/i/hT2 Key: XLYOFNOQVPJJNP-PWCQTSIFSA-N ;
	SMILES [3H]O[3H];
Properties
Chemical formula	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)
Acidity (pKa)	15.21
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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.

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

^ ^a ^b "Tritium oxide".
^ Perrin, D. D., ed. (1982) [1969]. Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution. IUPAC Chemical Data (2^nd ed.). Oxford: Pergamon (published 1984). Entry 252. ISBN 0-08-029214-3. LCCN 82-16524.
^ W. M. Jones (1952). "The Triple Point Temperature of Tritium Oxide". Journal of the American Chemical Society. 74 (23): 6065–6066. doi:10.1021/ja01143a070.
^ "hydrogen (H) - chemical element". 6 June 2023.
^ Paesani, Francesco; Yoo, Soohaeng; Bakker, Huib J.; Xantheas, Sotiris S. (5 August 2010). "Nuclear Quantum Effects in the Reorientation of Water". J. Phys. Chem. Lett. 1 (15): 2316–2321. doi:10.1021/jz100734w.

[pubchem-1] "Tritium oxide".

[P82db-2] Perrin, D. D., ed. (1982) [1969]. Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution. IUPAC Chemical Data (2^nd ed.). Oxford: Pergamon (published 1984). Entry 252. ISBN 0-08-029214-3. LCCN 82-16524.

[3] W. M. Jones (1952). "The Triple Point Temperature of Tritium Oxide". Journal of the American Chemical Society. 74 (23): 6065–6066. doi:10.1021/ja01143a070.

[4] "hydrogen (H) - chemical element". 6 June 2023.

[5] Paesani, Francesco; Yoo, Soohaeng; Bakker, Huib J.; Xantheas, Sotiris S. (5 August 2010). "Nuclear Quantum Effects in the Reorientation of Water". J. Phys. Chem. Lett. 1 (15): 2316–2321. doi:10.1021/jz100734w.

[1]

[3]

[4]

[5]

[2]

Names


IUPAC name [³H]₂-water
Systematic IUPAC name (³H₂)Water
Other names Super-heavy water Tritium oxide Ditritium oxide
Identifiers
CAS Number	14940-65-9^N
3D model (JSmol)	Interactive image
ChEBI	CHEBI:29374^N
ChemSpider	94563^N
MeSH	tritium+oxide
PubChem CID	104752
CompTox Dashboard (EPA)	DTXSID80894747
InChI InChI=1S/H2O/h1H2/i/hT2^N Key: XLYOFNOQVPJJNP-PWCQTSIFSA-N^N
SMILES [3H]O[3H]
Properties
Chemical formula	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)^[3] ^[4]^[5]
Boiling point	101.51 °C (214.72 °F; 374.66 K)
Acidity (pK_a)	15.21^[2]
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