0.5% stabilised aqueous solution.

Ruthenium tetroxide is very similar to osmium tetroxide and is used as an EM fixative/stain.
It gives excellent staining of saturated and unsaturated polymer materials with improved image contrast.

RuO₄ also has a stabilising effect against electron beam damage of material films.

Note: penetration of ruthenium tetroxide into tissue is poor.

Store at 4 °C.
5 x 10ml ampoules.

MSDS

Download Material Safety Data Sheet