Sodium diuranate
| Identifiers | |
|---|---|
| ECHA InfoCard | 100.033.882 | 
| PubChem CID | |
| UNII | |
| Properties | |
| Na2U2O7 | |
| Density | 6.44 g/cm3 | 
| Melting point | 1,646 °C (2,995 °F; 1,919 K) | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Sodium diuranate, also known as the yellow oxide of uranium, is an inorganic chemical compound with the chemical formula Na2U2O7. It is a sodium salt of a diuranate anion. It forms a hexahydrate Na2U2O7·6H2O. Sodium diuranate is commonly referred to by the initials SDU. Along with ammonium diuranate it was a component in early yellowcakes. The ratio of the two compounds is determined by process conditions; however, yellowcake is now largely a mix of uranium oxides.