Assertion: iodide | /r/HasProperty | blue-black
Facets:
Source sentences:
text: Four dihalides of cobalt(II) are known: cobalt(II) fluoride (CoF 2 , pink), cobalt(II) chloride (CoCl 2 , blue), cobalt(II) bromide (CoBr 2 , green), cobalt(II) iodide (CoI 2 , blue-black).