Ruthenium
Chemical symbol: Ru
Specific gravity: 12.96 g/cm3
Colour: anthracite grey
Melting temperature: 2334?C
Ruthenium is a metal belonging to the platinum group, used to make dental alloys as its addition in small quantities generates a high number of crystallisation nuclei during solidification, consequently forming a small grain structure. This effect leads to an increase in the mechanical strength of the alloy, improving its homogeneity and ensuring greater tenacity and integrity of the edges. The characteristics of this metal make it useful for the preparation of solutions for decorative use.
Ruthenium has four different crystalline forms and becomes opaque at ordinary temperatures, oxidising with an explosive reaction.
Associated with platinum and palladium, it is used for the production of highly wear-resistant electrical contacts. It is also a versatile catalyst and, associated with iridium, is used by companies producing luxury accessories.
Applications of Ruthenium
High resistance electrical contacts
Catalyst
Production of experimental drugs
In alloys for the production of luxury items
