Statements (124)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:chemical_compound
|
| gptkbp:accessories |
mining
recycling ocean floor asteroid impacts |
| gptkbp:application |
gptkb:hospital
gptkb:item aerospace components satellite communications chemical analysis electronic components nuclear reactors cathodic protection electrical contacts pen tips high-temperature thermocouples |
| gptkbp:category |
transition metal
|
| gptkbp:color |
silvery-white
|
| gptkbp:cooling_system |
70 W/m· K
|
| gptkbp:difficulty |
6.5
6.5 on Mohs scale |
| gptkbp:discovered_by |
gptkb:Smithson_Tennant
|
| gptkbp:ecological_role |
gptkb:none
|
| gptkbp:electronegativity |
2.2
|
| gptkbp:historical_significance |
gptkb:Cretaceous-Paleogene_extinction_event
used in scientific research used in ancient artifacts used in ancient Egypt used in technology advancements |
| https://www.w3.org/2000/01/rdf-schema#label |
Iridium
|
| gptkbp:is_found_in |
gptkb:core_of_the_Earth
oceanic crust |
| gptkbp:isotopes |
gptkb:Ir-191
gptkb:Ir-193 gptkb:Ir-192 77 |
| gptkbp:material |
gptkb:item
platinum-iridium |
| gptkbp:melting_point |
2446 ° C
4428 ° C |
| gptkbp:notable_conductors |
good
|
| gptkbp:occurs_in |
rare
in the Earth's crust in meteorites |
| gptkbp:population |
22.56 g/cm³
|
| gptkbp:products |
gptkb:iridium(III)_acetate
gptkb:iridium(III)_bromide gptkb:iridium(III)_chloride gptkb:iridium(III)_oxide gptkb:iridium(III)_sulfide gptkb:iridium(IV)_oxide gptkb:iridium_bromide gptkb:iridium_carbonyl iridium acetylacetonate iridium chloride iridium oxide iridium phosphate iridium sulfide iridium(III) americinate iridium(III) antimonate iridium(III) arsenate iridium(III) berkeliumate iridium(III) bohriumate iridium(III) borate iridium(III) californiumate iridium(III) carbonate iridium(III) chromate iridium(III) coperniciumate iridium(III) curiumate iridium(III) darmstadtiumate iridium(III) dubniumate iridium(III) einsteiniumate iridium(III) fermiumate iridium(III) fleroviumate iridium(III) formate iridium(III) hafnate iridium(III) hassiumate iridium(III) hydroxide iridium(III) lawrenciumate iridium(III) livermoriumate iridium(III) meitneriumate iridium(III) mendeleviumate iridium(III) molybdate iridium(III) moscoviumate iridium(III) nihoniumate iridium(III) niobate iridium(III) nitrate iridium(III) nobeliumate iridium(III) oganessonate iridium(III) oxalate iridium(III) phosphonate iridium(III) plutonate iridium(III) roentgeniumate iridium(III) rutherfordiumate iridium(III) seaborgiumate iridium(III) selenate iridium(III) silicate iridium(III) tantalate iridium(III) tellurate iridium(III) tennessineate iridium(III) thiocyanate iridium(III) thorate iridium(III) tungstate iridium(III) uraniumate iridium(III) vanadate iridium(III) zirconate iridium(IV) bromide iridium(IV) chloride |
| gptkbp:safety_features |
none known
|
| gptkbp:social_structure |
+2
+3 face-centered cubic +4 |
| gptkbp:symbol |
Ir
|
| gptkbp:uses |
gptkb:hospital
aerospace applications catalysts spark plugs |
| gptkbp:values |
high
|
| gptkbp:was_a_response_to |
low
|
| gptkbp:water_resistance |
high
|
| gptkbp:year_created |
1803
|
| gptkbp:bfsParent |
gptkb:Sodebo_Ultim
|
| gptkbp:bfsLayer |
3
|