The Student Room Group

Why must you mix a fresh starch solution before using it?

[h="1"]I was doing the iodine clock reaction (the persulphate variation) and my teacher said that before we add the starch we should mix it. Why?[/h]
Original post by LaRienne
[h="1"]I was doing the iodine clock reaction (the persulphate variation) and my teacher said that before we add the starch we should mix it. Why?[/h]


It goes off (polymerises)
Reply 2
Original post by charco
It goes off (polymerises)


Can you explain it a bit more please?

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