11. Concentrations ranged from ( terbium and holmium ) to ( cerium ). 12. It is also called cerium mischmetal, rare earth mischmetal or misch metal. 13. Cerium hexaboride, like lanthanum hexaboride, slowly evaporates during the cathode operation.14. Ceria is the most widely used compound of cerium . 15. This effect is suppressed by addition of cerium oxide. 16. Like all rare earth metals, cerium is of low to moderate toxicity. 17. Bromopyrogallol red forms blue to violet-blue complexes with Yttrium and Cerium . 18. They'll use a cerium -oxide abrasive on a wet felt wheel. 19. Cerium oxide, also found in catalytic converters, makes the methane react quickly.20. Berkelium and cerium are then separated with another round of ion-exchange treatment.
