Sodium astatide

Inorganic compound of sodium and astatine

Sodium astatide

Names

Preferred IUPAC name

Sodium astatide

Identifiers

3D model (JSmol)

Interactive image

SMILES

[Na+].[At-]

Properties

Chemical formula

NaAt

Thermochemistry

Std enthalpy of
formation (Δ_fH^⦵₂₉₈)

−257 kJ/mol (estimated)^[1]

Related compounds

Magnesium astatide

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Sodium astatide is a binary inorganic compound of sodium and astatine with the chemical formula NaAt.^[2]^[3]

Synthesis

Sodium astatide solution has been prepared by distilling astatine from the bismuth alpha-ray target where it was prepared, dissolving in sodium bicarbonate solution, and reducing At⁺ and At³⁺ ions with ascorbic acid.^[4]

Uses

Sodium astatide has been proposed for use in radiation therapy to replace ¹³¹I.^[5]^[4]

References

^ Burgers, Peter C.; Zeneyedpour, Lona; Luider, Theo M.; Holmes, John L. (2024). "Estimation of thermodynamic and physicochemical properties of the alkali astatides: On the bond strength of molecular astatine (At 2 ) and the hydration enthalpy of astatide (At − )". Journal of Mass Spectrometry. 59 (4). doi:10.1002/jms.5010. ISSN 1076-5174.
^ Watabe, Tadashi; Hosono, Makoto; Kinuya, Seigo; Yamada, Takahiro; Yanagida, Sachiko; Namba, Masao; Nakamura, Yoshihide (July 2021). "Manual on the proper use of sodium astatide ([211At]NaAt) injections in clinical trials for targeted alpha therapy (1st edition)". Annals of Nuclear Medicine. 35 (7): 753–766. doi:10.1007/s12149-021-01619-2. ISSN 1864-6433. PMC 8197710. PMID 33978932.
^ Ball, Philip (17 March 2020). "An affinity for astatine". Chemistry World. Retrieved 16 June 2023.
^ ^a ^b Y. Shirakami. "Preparation of [211At]-labeled sodium astatide (NaAt) by reducing with ascorbic acid for the treatment of thyroid cancer" (PDF). RIKEN Accel. Prog. Rep. 53: 171. Retrieved 16 June 2023.
^ "Breakthrough alpha-ray treatment of cancer without external radiation". EurekAlert!. Retrieved 16 June 2023.

Sodium compounds

Inorganic

Halides	NaF NaHF₂ NaCl NaBr NaI NaAt
Chalcogenides	NaO₃ NaO₂ Na₂O Na₂O₂ NaOH NaOD Na₂S NaSH Na₂Se NaSeH Na₂Te NaHTe Na₂Po
Pnictogenides	Na₃N NaN₃ NaNH₂ Na₃P Na₃As
Oxyhalides	NaClO NaClO₂ NaClO₃ NaClO₄ NaBrO NaBrO₂ NaBrO₃ NaBrO₄ NaIO₃ NaIO₄
Oxychalcogenides	Na₂SO₃ Na₂SO₄ NaHSO₃ NaHSO₄ Na₂S₂O₃ Na₂S₂O₄ Na₂S₂O₅ Na₂S₂O₆ Na₂S₂O₇ Na₂S₂O₈ Na₂SeO₃ Na₂SeO₄ NaHSeO₃ Na₂TeO₃
Oxypnictogenides	NaNO₂ NaNO₃ Na₂N₂O₂ NaH₂PO₄ NaPO₂H₂ Na₂HPO₃ Na₂PO₃F Na₃PS₂O₂ Na₃PO₄ Na₅P₃O₁₀ Na₄P₂O₇ Na₂H₂P₂O₇ Na₃AsO₃ Na₃AsO₄ Na₂HAsO₄ NaH₂AsO₄ NaSbO₃
Others	NaAlH₄ NaAlO₂ Na₃AlF₆ NaAl(SO₄)₂ NaAuCl₄ NaSbF₆ NaAsF₆ Na₂TiF₆ NaBH₄ NaBH₃(CN) NaBO₂ Na₂B₄O₇ Na₂B₂O₉ Na₂B₈O₁₃ NaBiO₃ NaCN NaCNO NaCoO₂ NaH NaHCO₃ Na₄XeO₆ NaHXeO₄ NaMnO₄ NaOCN NaReO₄ NaSCN NaTcO₃ NaTcO₄ NaVO₃ Na₂CO₃ Na₂C₂O₄ Na₂C₃S₅ Na₂CrO₄ Na₂Cr₂O₇ Na₂Cr₃O₁₀ Na₂GeO₃ Na₂He Na₂[Fe(CO)₄] Na₂MnO₄ Na₂MoO₄ Na₃IrCl₆ Na₂PtCl₆ Na₂O(UO₃)₂ Na₂S₄O₆ Na₂SiO₃ Na₂TiO₃ Na₂U₂O₇ Na₂WO₄ Na₂Zn(OH)₄ Na₃VO₄ Na₆V₁₀O₂₈ Na₄Fe(CN)₆ Na₃Fe(CN)₆ Na₃Fe(C₂O₄)₃ Na₄SiO₄ Na₂SiF₆ Na₃[Co(NO₂)₆] NaNSi₂(CH₃)₆ Na₂PdCl₄