Sodium technetate(V)
Chemical compound
From Wikipedia, the free encyclopedia
Sodium technetate(V) is an inorganic compound with the chemical formula NaTcO3. It is a perovskite material and a rare example of an insoluble sodium salt.[2]
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| Names | |
|---|---|
| IUPAC name
Sodium technetate(V) | |
| Other names
Sodium metatechnetate | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| NaTcO3 | |
| Molar mass | 168.8942 g/mol |
| Appearance | black solid[1] |
| Melting point | 800 °C (1,470 °F; 1,070 K) (decomposes)[1] |
| insoluble | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
toxic, radioactive |
| Related compounds | |
Other anions |
Sodium pertechnetate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Sodium technetate(V) can be prepared by co-heating technetium, sodium pertechnetate and sodium oxide, and decomposition occurs at high temperature.[3] In addition, Na99
2MoO4 decomposed in a NaOH solution will also produce NaTcO3.[4] The NaTcO3 puckering effect resembles NaMoO3 and the band between the eπ
g and a1g state disappears.[5]
Properties
NaTcO3 is a black solid that is a member of the Na2O–Tc2O5 system. It is stable to 800 °C (1,470 °F; 1,070 K).[1]