Ruthenium tetroxide aqueous 0.5% solution

In Crystal form: RuO4   F.W. 165.70   CAS #20427-56-96
m.p. 25.4?C b.p. 40?C

Ruthenium tetroxide is very similar to Osmium tetroxide, and is used as a fixation/staining agent for electron microscopy. Ruthenium tetroxide offers excellent staining of saturated and unsaturated polymer materials as well as stabilising thin sections under the bombardment of the electron beam.
NOTE: Penetration of ruthenium tetroxide into the tissue is poor. 

Technical Data 

Safety Data Sheet