ferric chloride

Amid the Iron Islands—perhaps non-ferric metals are scarce in the Seven Kingdoms?

Chloride of Lime … bad smell … bad egg … white of egg … fowl … grain … flour … flour and water … milk fluid … milk.

The same effect may be produced by dipping the straw into the chloride of lime dissolved in water.

There had never been screens on a barn in Bentford before, however, nor any chloride of lime used.