1. Minerals that are pure selenide or selenate compounds are known but rare. 2. Oxidation of this anion gives sodium selenate , Na 2 SeO 4. 3. In strongly acidic conditions, the hydrogen selenate ion,, is formed. 4. Selenate is the least reduced, followed by selenite, and elemental selenium.5. Selenate is the form required by organisms that need selenium as a micronutrient.6. In general, selenate salts resemble sulfate salts, but are more soluble. 7. Many selenate salts have the same crystal structure as the corresponding sulfate salts. 8. How sodium selenate specifically activates ceramide-activated PP2A has not been well studied. 9. Selenate and other forms of selenium are highest in areas where ancient seas have evaporated.10. Ceramide is the defining activator of CAPP while other activators include theophylline and sodium selenate .
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