Group 7: Halogens
Read our general notes on Risk Assessment
I know that iodine is present in seaweed, but why exactly does it occur naturally in the seaweed, and what does it do?
It appears from this web site that no-one knows the answer. See the text under the heading: 'Iodine in seaweed'.
Risk assessment
Before attempting any practical work based on the advice and suggestions on this website, you must do the following. Identify any hazards, assess the risks from these hazards, and then decide appropriate control measures to reduce the risks. You must have these approved by those in authority in your school or college laboratory. Do not rely on what is said on this website.
For further guidance see our tutorial on Risk Assessment.
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updated: 24 January 2006
