He reproduced their work by mixing a ferric chloride compound with calcium carbonate in water, then separating out the iron hydroxide that formed.
(the iron hydroxide; formed; ) (He; reproduced; their work) Context(He reproduced,List([0, 13))):(He; reproduced their work by mixing then; a ferric chloride compound; with calcium carbonate)
He reproduced,List([0, 13))
the iron hydroxide He He
formed reproduced reproduced their work by mixing then
their work
a ferric chloride compound with calcium carbonate