〈鈦(Ⅳ)-5-Br-PADAP——羥胺——氯乙酸〉體系混配絡合物及其分析應用(“金屬離子——2-吡啶偶氮染料——L”體系多元絡合物研究之三)

Application of the Mixed Ligand Complex in the System of “Titanium (Ⅳ-5-Br-PADAP-Hydroxylamine-Chloroacetate”

摘要: 本文報導了<鈦(Ⅳ)——5-Br-PADAP—羥胺—氯乙酸>體系混配絡合物的顯色反應,此體系有不同于多數金屬離子同型絡合物的萃取性質,利于在其他金屬離子共存時測定鈦。服從比爾定律的范圍為0—25μg/25ml。摩爾吸光系數為7.24×10⁴。介紹了合金鋼中低含量鈦的測定方法。

Abstract: The mixed ligand complex in the system of "Titanium (Ⅳ)-5 -Br-PADAP-Hydroxylamine-Chloroacetate" is suitable for the spectrophotometric determination of low titanium.The deep blue complex has a maximun absorption at 585nm and the molar absorptivity of 7.24×10⁴.It is stable and can be kept unchanged at least one week after developing.The interference of coexist-ing ions and their diminution are studied. Beer's law is obeyed over the concentration range of 0-25μg titanium per 25 ml. A procedure for the determination of titanium in alloy sleels has developed.