RT Journal Article SR Electronic T1 The separation of titanium from iron, aluminum and phosphoric acid with the aid of the ammonium salt of nitrosophenylhydroxylamine ("cupferron") JF American Journal of Science JO Am J Sci FD American Journal of Science SP 407 OP 414 DO 10.2475/ajs.s4-37.221.407 VO s4-37 IS 221 A1 Thornton, W. M. YR 1914 UL http://www.ajsonline.org/content/s4-37/221/407.abstract AB