essedas in the table below—which we introduce by remarking,that in dissolving iron in sulphuric or hydrochloric acid,there is merely a substitution of the iron for the hydrogen(see page 32); but with nitric acid a different range of affini-ties takes place: the elements of the acid are not held… … Two proportions iron 2 Fe. Water.3 Water. Nitrate of iron. The binoxide of nitrogen is the gas passing off; but it in-stantly combines ■with more oxygen, and forms peroxide ofnitrogen. The nitrate of iron alone dyes a buff or nankeen colour,which is probably the easiest dyed of any of the colours,…
Dyes and dyeing
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