12/3/2023 0 Comments Iodine clock reaction![]() ![]() Add some thiosulphate (solid or solution) with stirring, until the solution is no longer blue. Find out how to use these resources, and obtain a list of suggested ‘junk items’ here.Ĭollect up the blue solutions. This resource is part of a collection of problem-solving activities, designed to engage learners in small group work. The competition may be made more difficult by limiting the volume of sock solutions available to each competitor. Sufficient time should be left at the end for judging. This problem can be approached as a competition, in which case the time for experimenting should be limited. The solution is of low hazard. See CLEAPSS Hazcard HC092. Sodium hydrogensulfate causes serious eye damage. ![]()
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