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RB105 - Winkler's method for dissolved oxygen
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Guidance on the preparation and use of the required solutions for the determination of the dissolved oxygen content of water samples using Winkler's method. The procedure described avoids the use of s.. more
words matched: dissolved
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PP096 –Testing for common negative ions
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The common negative ions, carbonate (CO32-), sulfate(VI) (SO42-) and the halides (Cl–, Br– and I–) can be simply tested for in test tube reactions. The method described here uses a more dilute ammo.. more
words matched: dissolved
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PP098 – Testing for positive ions: reactions with hydroxides and ammonia
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Testing for positive ions: reactions with hydroxides and ammonia. This microscale practical is carried out on a worksheet that is laminated or placed in a plastic wallet. The method minimises the use .. more
words matched: dissolved
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PP003 - Reaction of concentrated sulfuric(VI) acid with copper metal
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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
words matched: dissolved
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PP001 - Reaction of concentrated sulfuric(VI) acid with hydrated copper(II) sulfate(VI)
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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 a dehydrating agent, removing the water of crystalli.. more
words matched: dissolved
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RB050 - Iodine solution
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How to prepare aqueous solutions of iodine (dissolved in potassium iodide)
words matched: dissolved
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PP066 - Distillation Demonstration
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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
words matched: dissolved
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PX082 - Potassium nitrate(V) and sodium nitrate(V)
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Brief risk assessment guidance and experimental notes for a range of activities involving potassium nitrate(V) and sodium nitrate(V) salts (Hazcard 82).
words matched: dissolved
Free resource
SSS056 - Iodine
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Precautions needed when using iodine or iodine solutions (iodine dissolved in potassium iodide or other solvents) i practical activities.
words matched: dissolved
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RB001 - Agar
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Basic recipe for making agar, with additional details for making a range of agars used in science practicals, but not including those used in microbiology. (See GL229 for those.)
words matched: dissolved
Showing results 1 to 10 of 261
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