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Instructions on how to make small scale distillation apparatus incorporating an electric heater.
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Crude oil refinery is a foundation industry, providing fuel products for heating and transport, and raw materials for many further industries, including polymer and pharmaceutical manufacturing. Fract.. more
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With careful supervision, students can carry a simple distillation to separate a pure substance (water) from a solution (copper(II) sulfate). This can be achieved by using a side-arm boiling tube inst.. more
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In this activity, a primary alcohol (ethanol) is oxidised to an aldehyde (ethanal) using an acidified dichromate(VI) solution. After collection by distillation, the organic product can be tested to co.. more
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The chemistry of extracting substances from plant materials is important because many such compounds are physically active, either medically or aesthetically (perfumes). This guide describe a small-s.. more
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This demonstration shows an important procedure in chemistry and industry, to separate a pure substance from a mixture of substances with widely differing boiling points. One important industrial exam.. more
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In this activity, a primary alcohol (ethanol) is oxidised to a carboxylic acid (ethanoic acid) using an acidified dichromate(VI) solution. Important techniques are involved including heating under ref.. 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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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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Gives very detailed guidance on what water purification entails, and when pure water is needed in school science. It suggests the advantages and disadvantages of the methods of purification available .. more
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Showing results 1 to 10 of 45
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