Purple Haze: Zinc reacts with iodine using water

A zinc and iodine mixture reacts exothermically when water is added. The heat generated causes excess iodine to undergo sublimation, shown by the purple vapor given off during the course of the reaction.

Category:

Science & Technology

Tags:

• iodine
• zinc
• water

[nucleartactician]

Is that zinc iodide produced in the test tube?

[mrteverett]

@nucleartactician

Yes - it's in the test tube.

[mrteverett]

It is iodine vapor and it is toxic.

[MultiPrincessD]

iodine sublimes when heated...............oh im sooooo smart. joking lolol

[PersianElite95]

The gas is toxic,

and it is iodine, but when it being heated up, it will start to make be gas.

I mean: it goes from solid phase to gas phase.

[RanonaMohamed]

I love the colour of the purple vapour.

[zalvoz]

is the gas toxic ?

and wich gas is it ?