noun
definition
A metallic chemical element (symbol Ru) with an atomic number of 44.
definition
An atom of this element.
Examples of ruthenium in a Sentence
Pure ruthenium tetroxide distils over.
Ruthenium in bulk resembles platinum in its general appearance, and has been obtained crystalline by heating an alloy of ruthenium and tin in a current of hydrochloric acid gas.
Several oxides of ruthenium have been described, the definite existence of some of which appears to be doubtful.
Fusion with caustic potash converts it into a mixture of potassium ruthenate and ruthenium sesquioxide, Ru 2 0 3, which is a black, almost insoluble powder.
The peroxide, Ru04, is formed when a solution of potassium ruthenate is decomposed by chlorine, or by oxidizing ruthenium compounds with potassium chlorate and hydrochloric acid, or with potassium permanganate and sulphuric acid.
Ruthenium dichloride, RuC1 2, is obtained (in solution) by reducing the sesquichloride by sulphuretted hydrogen or zinc. It is stable in the cold.
Ruthenium sulphides are obtained when the metal is warmed with pyrites and some borax, and the fused mass treated with hydrochloric acid first in the cold and then hot.
Ruthenium sulphate, Ru(S04)2, as obtained by oxidizing the sulphide, is an orange-yellow mass which is deliquescent and dissolves in water, the solution possessing a strongly acid reaction.
Potassium ruthenium cyanide, K4Ru(CN) 6.3H 2 O, formed when potassium ruthenate is boiled with a solution of potassium cyanide, crystallizes in colourless plates which are soluble in water.
Aqua Regia, a mixture of nitric and hydrochloric acids, converts all metals (even gold, the "king of metals," whence the name) into chlorides, except only rhodium, iridium and ruthenium, which, when pure, are not attacked.
Media attention was at it peak in 1983 when radioactive ruthenium was allowed out to sea and washed back onto the holiday beaches.
The most significant discoveries of KSU include non-Euclidean geometry, obtaining aniline from nitrobenzene, new element ruthenium, phenomenon of EPR.
Haimei will show how she has incorporated new design features into ruthenium compounds that are active against a wide range of cancer cells.
The iron and ruthenium clusters not only lost their carbonyl ligands, but their cluster cores were also fragmented.
The most significant discoveries of KSU include non-Euclidean geometry, obtaining aniline from nitrobenzene, new element Ruthenium, phenomenon of EPR.
These square shaped frames are made of metal and available in brown, silver, dark ruthenium, violet, light gold, and ruthenium.