Xenonic acid

Structural formula
General
Surname	Xenonic acid
Molecular formula	H 2 XeO 4
External identifiers / databases
PubChem	23422578
ChemSpider	10466143
Wikidata	Q1048621
properties
Molar mass	197.31 g mol −1
Physical state	liquid
pK s value	10.5
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Xenonic acid is an acid of the noble gas xenon . Their salts are the Xenate XeO ₄²⁻ and the Hydrogenxenate HXeO ₄^- . Their existence was predicted by Linus Pauling .

Extraction and presentation

Xenonic acid can be produced by hydrolysis of xenon (VI) oxide XeO ₃ , whereby only a small part reacts to form the acid.

${\ displaystyle {\ ce {XeO3 + H2O -> H2XeO4}}}$

properties

Xenonic acid is a powerful oxidizing agent . In acidic solution it is able to oxidize iodine quickly. The acidic solution is only slightly acidic.

The hydrogen xenate ion HXeO ₄^{- can be} produced by adding a base to xenon (VI) oxide .

${\ displaystyle \ mathrm {XeO_ {3} + OH ^ {\, -} \ longrightarrow}}$ ${\ displaystyle \ mathrm {HXeO_ {4} ^ {\, -} \ K = 1 {,} 5 \ cdot 10 ^ {3}}}$

The disproportionation of the hydrogen xenate ion gives rise to the perxenate ion XeO ₆⁴⁻ .

${\ displaystyle \ mathrm {2 \ HXeO_ {4 (aq)} ^ {\, -} + 2 \ OH _ {(aq)} ^ {\, -}} \ longrightarrow}$ ${\ displaystyle \ mathrm {XeO_ {6 (aq)} ^ {\, 4 -} + Xe + O_ {2} +2 \ H_ {2} O _ {(l)}}}$

Individual evidence

^ ^A ^b ^c ^d A. F. Holleman, Egon Wiberg, Nils Wiberg: Inorganic Chemistry . Ed .: Nils Wiberg. Academic Press, 2001, ISBN 0-12-352651-5 , pp. 399 .
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ Linus Pauling: The Formulas of Antimonic Acid and the Antimonates . J. Am. Chem. Soc., 1933, pp. 1895–1900 , doi : 10.1021 / ja01332a016 .
^ Howard H. Claassen: The Noble Gases . Heath, 1966, p. 65 .
↑ David W. Oxtoby, Wade A. Freeman, Toby F. Block: Chemistry 4th Edition . ISBN 0-03-033188-9 , chap. 4 , p. 87AP .

[INORGANICCHEMISTRY-1] A ^b ^c ^d A. F. Holleman, Egon Wiberg, Nils Wiberg: Inorganic Chemistry . Ed .: Nils Wiberg. Academic Press, 2001, ISBN 0-12-352651-5 , pp. 399 .

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[3] Linus Pauling: The Formulas of Antimonic Acid and the Antimonates . J. Am. Chem. Soc., 1933, pp. 1895–1900 , doi : 10.1021 / ja01332a016 .

[4] Howard H. Claassen: The Noble Gases . Heath, 1966, p. 65 .

[5] David W. Oxtoby, Wade A. Freeman, Toby F. Block: Chemistry 4th Edition . ISBN 0-03-033188-9 , chap. 4 , p. 87AP .