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Risk assessment guidance for caesium chloride; lithium chloride; sodium bromide, chloride, iodide; potassium bromide, chloride, iodide; rubidium chloride.
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Updated in 2013, this document gives detailed advice on suitable radioactive sources and appropriate suppliers.
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Describes in detail four different practical activities to measure half-life in a school laboratory, and compares the advantages and disadvantages of each.
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A rather technical publication intended predominantly for manufacturers of radioactive sources and school employers.
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A straightforward practical which can be undertaken by post-16 students as well as done as a demonstration.
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CLEAPSS has received a small but steadily increasing number of calls from schools regarding a red-brown discolouring on the surface of the metal disc of their radium sealed source.
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The flame test is a useful technique for identifying unknown substances. This simple method uses wooden splints soaked in aqueous salt solutions.
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Brief risk assessment guidance and experimental notes for a range of practical activities involving hydrochloric acid, hydrobromic acid, hydriodic acid and Group 1 halide salts (Hazcards 47A, 47B, 47C..
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The low melting point of gallium metal is demonstrated, eg by using warm water to melt a sample or by making it into a spoon shape and showing that it melts when used to stir a cup of tea.
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The flame test is a useful analytical technique for identifying unknown substances. This nichrome wire method avoids the use of concentrated hydrochloric acid.
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Showing results 1 to 10 of 18
