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The gas iodine will stick to the fingerprints because they will crystallize when they come into contact with a cool surface. When heated, iodine directly changes into vapor.
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∙ 9y ago
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Why doesn't solid iodine stick to finger prints?
solid iodine does not stick to fingerprints because it is a solid however when it is transferred into a gas it is
Why does solid iodine only stick to fingerprints when they are heated?
because when they are heated they are sticky and they only fix to fingers
Why does solid iodine not stick to fingerprints?
iodine is a covalent compound and no ionic properties. there are no free electrons on it. so it can not conduct electricity.
Why does the solid iodine only stick to fingerprints when its heated?
because the iodine needs to make contact with the fingerprint so when it's a solid it can't do that. However when it is heated it turns in to gas (sublimation) it rises up and as it make contact with a coooler surface (the fingerprint) it crystallizes and makes it visable.
How does iodine show up the fingerprints?
dont now
Why does iodine work when using to find fingerprints?
probably because iodine sticks to the oil from your fingers
Is there a better technique than iodine to search for fingerprints?
It is simple
Is there a better substance then iodine to detect fingerprints?
no there is not a better substance
Is there a better method to finding fingerprints than iodine?
yes,yes there is
Is there a better technique to detect fingerprints other than iodine?
my head
How do forensic scientists find fingerprints using iodine?
hold it in there hands
What does iodine do to fingerprints?
It has been used as a method to develop latent fingerprints on items of evidence. The fingerprints must be photographed as their visibility does not last. Iodine has been used when the evidence must not appear to have been examined, such as mail fraud cases where the fingerprints are developed and then the mail continues on it's way to allow authorities to trap the accomplice.
