An agent employed in catalysis as platinum black aluminum chloride etc
- Relating to or causing catalysis
- concerning or causing or concerning catalysis
- concerning, or causing, catalysis.
- a realtor used in catalysis, as platinum black, aluminium chloride, etc.
1836, from Latinized form of Greek katalytikos "able to reduce," from katalyein (see catalysis).
Its chemical properties are in general intermediate between those of chlorine and iodine; thus it requires the presence of a catalytic agent, or a fairly high temperature, to bring about its union with hydrogen.