Extra elements detection in organic compounds by nonbreakable sodium ignition apparatus (NOSIA)

摘要

Elemental analysis of organic compounds is a traditional component in identification of substances. The technique is traditionally performed with molten sodium in test tubes that are later broken by plunging the hot tube into cold water. This article deals with the detection of several elements (Cl, Br, I, S, and N) using a nonbreakable sodium ignition apparatus (NOSIA) in place of breakable ignition tubes. In the method, an organic compound and sodium metal are loaded in fusion zone of the NOSIA for heating until they melt (100–150°C), then water (80–90°C) is added. The resultant mixture was directly used for element detection. In the traditional method, the sodium, on heating, often jumps out of the ignition tube and frequently catches fire posing a significant hazard in the laboratory. NOSIA is a safer and resource-saving approach that has been used by many instructors, as well as undergraduate, postgraduate, and research students. The NOSIA method does not require breaking of glass ignition tubes nor ...