Title: Zinc Iodide-Starch
CAS Registry Number: 9010-71-3
Additional Names: Trommsdorff's starch
Literature References: A soln is prepd by heating 4 parts starch, 20 ZnCl2, and 2 ZnI2 with 1 liter water. Deteriorates with age and acquires a blue color.
Use: For detecting nitrites, free Cl, and other oxidizing agents.