鉄鋼中の錫の光度定量法（第1報）第一錫塩のカコテリンによる呈色反応について

抄録

Owing to the necessity of simple microdetermination of tin in small amount of iron and steel samples, its photometric determination, was studied. Fundamental experiments were carried out on the colour reaction of stannous salt with cacotheline to obtain the suitable conditions for the determination of tin separated from actual metal samples. After the stannous solution was reduced by aluminium in the stream of carbon dioxide, cacotheline was added to it. The photomeric measurement was made using Pulflich’s photometer, and the definite conditions for the determination of tin were determined. Effects of other ions were also examined and Al, As, Be, Ca, Cd, Co, Mg, Mn and Ni had no effect on this reaction, but Fe, Sb, Cr, Ag, Hg, W, Mo, V and Ti had some.