Assertion: tellurium | /r/HasProperty | strong catalysts
Facets:
value: in iron castings
type: LOCATION
Source sentences:
text: Tellurium, its dioxide, and its tetrachloride are strong catalysts for air oxidation of carbon above 500 °C.
text: Tellurium also is a strong chilling agent in iron castings: it controls the chill and imparts a tough abrasion resistance to the surface.