Nomenclature
CAS number: 9010-71-3
Trommsdorff's starch.
Description and 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.