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Because iodine sublimates, as do the other solid halogens. That means they go from solid to gas without becoming a liquid first.
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When iodine is heated does any iodine melt?
iodine is a substance that has an unusual property, it has the ability to sublimate, this means that it converts directly from a solid to a gas with no liquid stage at all. So no, no iodine will "melt" into a liquid, it will insted turn into a purple gas.
What happens when you burn an iodine crystal?
when iodine crysatals are heated, they turn from a solid into a gas (vapour). They start a black colour and as they gradually turn into a gas, they turn to a purple colour. At the end, there are no crystals left.
What are iodines natural properties?
Iodine is water insoluble and turns black when exposed to light, Iodine is used in the diet and if we dont get enough iodine we may get impaired physical development in children. Iodine is a halogen so is toxi and can be used to kill bacteria. Iodine can also tell you whether a substance has starch or not in it.
How did bernard courtois discover iodine?
Bernard Courtois discovered iodine by adding sulfuric acid to kelp. It let off a violet-purple gas and was soon called iodine.
Why is liquid iodine not visible if crystals are heated in the open air?
Because Iodine, like Carbon dioxide, sublimes straight from a solid to a gas and does not have a liquid phase.
What is a solid purple-black non metal which changes to a deep purple gas when heated?
Iodine is a purple-black non metal that changes to a deep purple gas when heated.
What do you call the purple gas that fills the test tube when a few crystals of iodine is being heated inside a test tube?
This is also iodine, as a gas.
What do you call the purple gas that fills the test tube when a few crystal of iodine is being heated inside a test tube?
This is also iodine, as a gas.
When iodine is heated does any iodine melt?
iodine is a substance that has an unusual property, it has the ability to sublimate, this means that it converts directly from a solid to a gas with no liquid stage at all. So no, no iodine will "melt" into a liquid, it will insted turn into a purple gas.
A gas heated to millions of degrees would emit?
A gas heated to millions of degrees would emit X-rays.
What gas is produced when iodine are heated?
Gas of diatomic iodine I2 .
Is chemical change a black solid when heated changes into a purple gas?
When it is iodine (I2) it is only physical sublimation of the black (metallic shiny) I2 crystals into purple heavy gas clouds or fumes
What is the purple gas which fills the test tube when heating an iodine?
It is also iodine, as a gas.
Is iodine a brown gas or a grey gas?
It is violet-purple gas.
How does iodine crystal changes into vapours?
Iodine sublimes- i.e it changes from solid to gas without going though a liquid phase.
What is a gas suitable for a reddish purple advertising light?
Iodine Vapor is a reddish purple gas
What is the correct colour for iodine gas?
Purple !! :) x
