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Risk assessment information for phenylethene (styrene) and phenylethyne (phenylactylene) and their polymers. Outline general information for plastics and polymers, including ion exchange resins.
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The flame test technique is very quick and simple method used in qualitative chemistry analysis to identify some of the metal ions.
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This activity dramatically shows the effect of a catalyst, cobalt(II) ions, on a reaction. Other characteristic properties of transition metals (eg, coloured ions, different oxidation state) can be ob.. more
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Describes two simple microscale practical activities, one a demo, the other for class use, for illustrating the electrolytic separation of copper and chromate ions. Copper chromate is made, in situ, b.. 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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Brief risk assessment guidance and experimental notes for a range of practical activities involving silver nitrate(V) and its solutions (Hazcard 87).
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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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Health and safety information on the use of radioactive sources in practical school science activities.
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Sulfuric(VI) acid does not exhibit the usual properties of an acid unless it is dissolved in water. In this activity, the concentrated acid acts as an oxidising agent. Copper is oxidised to copper(II).. more
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Guidance on the preparation (and use) of a number of standard solutions required for some titration activities. Solutions described include: sodium carbonate (for standardising strong acid solutions),.. more
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Showing results 1 to 10 of 90
1 234