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A short overview of the common methods of water purification in school laboratories, include pros and cons. This will be useful for any teacher or technician looking to buy a new water purification sy.. more
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Small pieces of sodium and potassium metal are crushed together in a test tube under an inert liquid until the alloy – a liquid at room temperature – is observed to form. There are several possible al.. more
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The synthesis and purification of a liquid organic compound is described. Practical techniques include, liquid-liquid separation, washing, drying and distillation. The % yield of the organic product c.. more
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Risk assessment guidance for Phenols (2)
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Includes calcium and strontium chloride and fluoride.
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Risk assessment guidance for carbon disulfide.
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Using a number of aldehydes safely in practical work. Includes ethanal (acetaldehyde), ethanal tetramer (metaldehyde),  propanal (proprionaldehyde) and butanal (butyraldehyde).
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Risk assessment guidance for Iron, its carbonate, oxides & sulfides
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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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Using hydrogen peroxide safely in practical activities.
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