ferric chloride

noun

Definition of ferric chloride 

: a deliquescent dark salt FeCl3 that readily hydrates to the yellow-orange form and that is used especially for etching, in sewage treatment, and as an astringent

First Known Use of ferric chloride

1835, in the meaning defined above

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The first known use of ferric chloride was in 1835

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ferric chloride

noun

Medical Definition of ferric chloride 

: a deliquescent salt FeCl3 that is used chiefly as an oxidizing agent, as a catalyst, as an etching agent in photoengraving, as a coagulant in treating industrial wastes, and in medicine in a water solution or tincture usually as an astringent or styptic

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