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Hatari
Ferric Chloride Solution: Precipitated Sesquioxide Dissolved in Hydrochloric Acid
The other way Thorpe's Dictionary (1912) gives to make ferric chloride solution: dissolve the precipitated sesquioxide in hydrochloric acid and drive off the excess acid by heat. Hydrochloric acid gives off fumes when heated: fume hood.
The picture: our diagram.
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Maudhui hatari
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