Pertechnetic acid

H3POS peroxomonophosphoric acid HTCO4 pertechnetic acid... 

Technetium(VII) oxide is a yellow solid, crystallizing in the orthorhombic space group D2)l15-Pbca and is one of the few known transition metal oxides having a molecular structure in the solid state.10 It melts at 119.5° and boils at 310.6° It dissolves in water, forming pertechnetic acid. The pertechnetate ion is known to inhibit the corrosion of steel. TechnetiumfVII) oxide is an excellent starting material for preparing pure technetium metal. 

The metals dissolve in oxidizing acids (e.g. cone HNO3) to give HTCO4 (pertechnetic acid) and HRe04 (perrhenic acid), but are insoluble in HF or HCl. 

MPI To 99m Generator NeoTect Pertechnetic acid (H " Tc04), sodium salt Pertscan-99m Sodium pertechnetate (Na " Tc04) Sodium pertechnetate (Tc-99M) Sodium pertechnetate "Tc Sodium pertechnetate Tc 99m Ultra-Technekow FM. A radioactive agent. Used in brain scans, thyroid function tests. Abbott Labs Inc. 

In strongly acidic media, cupferron, the ammonium salt of N-nitroso-N-phenylhy-droxylamine, seems to form with TcOf adduct [(Cupf) (Tc04)"[ or an adduct with pertechnetic acid, which can be extracted from 6 M HCl into ether by 99 %. The occurrence of any significant reduction was not observed. Tc(IIl), prepared by coulometric reduction of pertechnetate, was extracted as a cupferrate into ether up to 26% [152],... 

Technetium tetrabromide, TcBr4, was synthesized analogously to rhenium tetrabromide [107] by reduction of pertechnetic acid with a 46 % solution of hydrobromic acid. This procedure was repeated four times. An unstable brown-red compound was obtained which rapidly hydrolyzed in moist air. The bromine analysis was always low due to slow spontaneous loss of bromine. TcBr4 dissolves in ethanol and acetone and forms complexes with 1,2-bis(diphenyl-phosphino)ethane and triphenylphosphine [89]. 

HTCO4 pertechnetic acid H2TCO4 technetic acid... 

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