KnowraIridiumLinked fromLinked fromThe 9 pages that link to Iridium, each with the reason it gives.All 9Broader topic 3Related 3Compared with 3Water electrolysisRelated: Iridium-based catalysts withstand the acidic, oxidizing conditions of many PEM anodes.Iridium anomalyBroader topic: The anomaly is a sharp increase in this element's concentration.Walter AlvarezRelated: Its extraterrestrial abundance made the boundary-layer anomaly suggest a cosmic source.RhodiumCompared with: Iridium shares rhodium’s exceptional corrosion resistance but has different industrial uses.OsmiumCompared with: Iridium’s density is close to osmium’s, and their ranking depends on measurement conditions.RutheniumCompared with: Iridium shares ruthenium’s hardness and chemical resistance but is denser and often more corrosion-resistant.Luis Walter AlvarezRelated: Its elevated boundary-layer concentration pointed the Alvarez team toward an extraterrestrial source.Group 9 elementBroader topic: Iridium is the group’s exceptionally dense, oxidation-resistant heavy metal.Platinum groupBroader topic: Its durability makes it a distinctive member in high-temperature and geological contexts.