A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c22.s4.t2.1
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c22.s4.t2.1
- Language
- English
v1.c22.s4.t2.1
It was magnetic and of dark iron colour; 0·259g, digested as above with hydrochloric acid, gave as residue (sand &c.) 0·131 g, Wt. of the real oxide=128 g. The solution was treated with ammonia and the precipitate, ignited as usual, weighed 0·130 g. The latter was once more dissolved in HCl and tested with K₃ Fe Cy₆; but no indication of a ferrous salt was obtained. It is thus evident that both the samples contained only a trace of ferrous oxide.