R 1363 (OTTO) Rubidium iodide, GR 99%+ Cas 7790-29-6 - used for making metal rubidium and other rubidium salts. R 1363 (OTTO) Rubidium iodide, GR 99%+ Cas 7790-29-6 - used in the production of special glass, miniature high energy battery and crystal scintillation counter.