Premodifier: ferrous
Head noun: salt

Same concepts
http://dbpedia.org/resource/Iron(II)_sulfate

Broader concepts

labelprovenanceconfidence
agentisap:863726570.459215

Narrower concepts

labelprovenanceconfidence
ferrous chlorideisap:3769001210.726085
ferrous sulfateisap:731294640.703533
ironisap:1677659790.283868