Osmium Tetroxide, Crystalline, Highest Purity, 99.95%
(Osmic Acid Anhydride)
Formula: OsO4
Formula Weight: 254.20
CAS #: 20816-12-0
Melting Range: 39.5-41.0°C
Boiling Point: 129.7°C
Vapor Pressure @25°C: 9.8 mmHg
Solubility: 5.07% in Cold Water; 6.5% in Hot Water; 25.0% in CCl4
Osmium Purity: >99.95%
Non-Volatile matter: <0.02%
Small size (2ml), Light-gauge, pre-scored amber glass ampoules. Ampoules containing OsO4 Crystal, are pre-cleaned and heat sealed in plastic bags to assure a contaminant-free solution. Ampoules are also free of pressure-sensitive labels and, therefore, do not require cleaning prior to solution preparation.