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Using ammonia, gas or liquid, safely in practical work. Includes ammonia solution (ammonium hydroxide solution).
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Risk assessment guidance for ammonia solution (ammonium hydroxide)
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Guidance on the preparation of ammonia gas (for filling gas jars etc). Brief information on the ammonia fountain demonstration is also provided.
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Guidance on the preparation and labelling of ammonia solution (ammonium hydroxide) and amine solutions. Amines include: methylamine, ethylamine, butylamine and 1,2-diaminoethane.
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How to carry out this classic activity
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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
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Guidance on the preparation of reagents used to test for the presence of anions. This Recipe only includes those reagents that are not covered by other Recipe Sheets.
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The ‘shelf-life’ of a reagent depends on its chemical properties, how it is stored and how frequently the container is opened, thus exposing the reagent to air, moisture and other contaminants. Over t.. more
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All-in-one pdf file of the CLP Recipe sheets published (or updated) up to, and including, 9th March 2021.
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 Please note: This is a temporary resource providing a summary Contents List of all recipe sheets published to date. RB 000 is a working document, subject to frequent changes as our guidance is update.. more
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