Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Iodine–starch test
open-in-new
<p>The iodine–starch test is a chemical reaction that is used to test for the presence of <a href="/facts/Starch/gHAqGfJb">starch</a> or for <a href="/facts/Iodine/JlfMecMf">iodine</a>. The combination of starch and iodine is intensely blue-black. The interaction between starch and the <a href="/facts/Triiodide/fNgW9WEr">triiodide</a> anion (I−3) is the basis for <a href="/facts/Iodometry/9Aro9FdG">iodometry</a>. </p>