The Probert Encyclopaedia of Science & Technology

RUTHENIUM

Ruthenium is a metal element of the platinum group of elements, occurring in the Urals and Americas. It is a hard, brittle, grey metal that forms ruthenious and ruthenic salts, of a reddish brown colour, of which ruthenious chloride gives a characteristic fine black precipitate with water.
Ruthenium has the symbol Ru.
Research Ruthenium