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Risk assessment guidance for dyes, indicators and stains.
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A simple activity involving the analysis of vinegar by titration using phenolphthalein as the indicator.
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Instructions on how to make a conductivity indicator for chemical solutions and materials.
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Guidance on preparing, labelling and storing cobalt (II) solutions and other cobalt(II)-containing reagents. Includes information on cobalt(II) chloride indicator papers (for moisture/humidity detecti.. more
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This activity can be used as an introduction to microscale drop, or “puddle” chemistry. It demonstrates that indicators do not always change at pH7.
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Guidance on the preparation of a mixed indicator that can be used for colourful investigations of the rusting process.
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Guidance outlining the different types of indicator used for making agar cubes for diffusion. It covers how to prepare, use and store the agar. 
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Guidance on the preparation of Janus green solution. This is used as an indicator for respiration and a stain for mitochondria.
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Using common dyes and indicators safely in practical activities. Many such compounds , or their solvents, are hazardous but are used in such small amounts and in a very controlled way so as to limit e.. more
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Useful, brief, guidance on how to grow the alga and make algal balls, which can be used successfully in photosynthesis practicals.
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Showing results 1 to 10 of 154
1 234