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Properties of Pertechnic Acid

Journal Article · · Inorganic Chemistry
 [1];  [2];  [3];  [3];  [3];  [2]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Washington State University
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Washington State Univ., Pullman, WA (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Dilute aqueous pertechnic acid has long been known as strong monoprotic acid that behaves as a simple pertechnetate ion in aqueous solution. As pertechnic acid concentrates by evaporation, it becomes yellow and then dark red, and dark-red crystalline material may ultimately be obtained. We show that as pertechnic acid concentrates, at least three compounds are formed: a yellow viscous liquid, a colorless (not red) crystalline solid, and a small amount of an intensely colored red–purple compound. Here, the colorless crystalline compound melts at 118 °C and can be melted and recrystallized several times with little decomposition. The red–purple compound is apparently not stable at room temperature and quickly decomposes if it is isolated. UV–vis spectra show that Beer’s law does not hold as pertechnic acid concentrates by evaporation. We report densities, 99Tc nuclear magnetic resonance spectra, and ultraviolet–visible absorption spectra for highly pure aqueous pertechnic acid (accompanied by the other technetium compounds that form) ranging from 1 to 14 M in technetium concentration.
Research Organization:
Rutgers Univ., New Brunswick, NJ (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM); USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC05-76RL01830; NE0008597
OSTI ID:
1749878
Alternate ID(s):
OSTI ID: 1614873
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 20 Vol. 58; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (37)

Technetium: Chemistry and Radiopharmaceutical Applications book February 2000
Hexamanganato(VII)manganic(IV) Acid: A ?Pseudopermanganic Acid? journal September 1974
Crystal Structure Determination of Metaperiodic Acid, HIO4, with Combined X-Ray and Neutron Diffraction journal September 1997
The Nature of the Technetium Species Formed During the Oxidation of Technetium Dioxide with Oxygen and Water: The Nature of the Technetium Species Formed During the Oxidation of Technetium Dioxide with Oxygen and Water journal March 2018
Die Struktur von Dirheniumdihydratoheptoxid Re2O7(OH2)2. - Ein neuer Typ von Wasserbindung in einem Aquoxid - journal August 1970
�ber Perrhenate. 2. Zur Kenntnis von Li5ReO6 und Na5ReO6 - mit einer Bemerkung �ber Na5IO6 journal May 1984
The crystal structure of Solid Perrhenic Acid Monohydrate journal October 1993
Technetium(VII): Analysis of the possible structure of the higher oxide in various states journal April 1992
The interconversion mechanism between TcO3+ and TcO2 + core of 99mTc labeled amine-oxime (AO) complexes journal September 2008
Theoretical analysis of TcO3(OH), TcS3(OH) and TcSe3(OH) journal August 2016
Ternäre oxide des drei-bis siebenwertigen technetiums mit alkalien journal April 1965
Technetium chemistry, oxidation states and species journal March 1967
Rhenium and technetium (VI) and meso-(VII) species journal January 1969
Infra-red spectra of permanganates journal September 1968
Density and activity of pertechnetic acid aqueous solutions at T = 298.15 K journal December 2015
Vibrational spectroscopic study of isotopic effect on TcX3+ and TcX3OH (X: O, S and Se) by DFT journal August 2018
Ditechnetium Heptoxide Revisited: Solid-State, Gas-Phase, and Theoretical Studies journal September 2016
Molecular and Electronic Structures of M 2 O 7 (M = Mn, Tc, Re) journal February 2017
Synthesis, Characterization, and Structures of R3EOTcO3Complexes (E = C, Si, Ge, Sn, Pb) and Related Compounds journal April 2010
Vapor Phase Vibrational Spectra for Re 2 O 7 and the Infrared Spectrum of Gaseous HReO 4 . Molecular Shapes of Mn 2 O 7 , Tc 2 O 7 , and Re 2 O 7 journal January 1996
Mass spectrometric study of the rhenium-oxygen system journal November 1968
The Crystal Structure of Perchloric Acid Monohydrate. journal February 1959
Chemical applications of technetium-99 NMR spectroscopy: preparation of novel technetium(VII) species and their characterization by multinuclear NMR spectroscopy journal October 1982
Preparation and properties of crystalline permanganic acid journal October 1969
Chemistry of Technetium. I. Preparation of Technetium Heptoxide journal January 1952
Temperature and Isotope Substitution Effects on the Structure and NMR Properties of the Pertechnetate Ion in Water journal September 2004
Comprehensive Solid-State NMR Characterization of Electronic Structure in Ditechnetium Heptoxide journal September 2010
Unraveling the mystery of “tech red” – a volatile technetium oxide journal January 2018
Structure and oxide ion conductivity in Bi28Re2O49, a new bismuth rhenium oxide containing tetrahedral and octahedral Re(vii) journal January 2005
Speciation of heptavalent technetium in sulfuric acid: structural and spectroscopic studies journal January 2010
Oxy-complexes and their vibrational spectra journal January 1969
Vibrational spectrum of gaseous, liquid, and solid Re2O7 journal January 1969
The crystal structure of hydronium perchlorate at –80°C journal January 1962
The crystal structures of two oxy-acids of iodine. I. A study of orthoperiodic acid, H5IO6, by neutron diffraction journal November 1966
Notizen: Zur Kristallstruktur des Li5ReO6 journal December 1968
Notizen: Feste Permangansäure / Solid Permanganic Acid journal April 1973
Synthesis and Characterization of 5- and 6- Coordinated Alkali Pertechnetates journal January 2017

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