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Guidance on how to prepare 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 so.. more
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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.. more
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Risk assessment guidance for Sodium and potassium salts (2)
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Brief risk assessment guidance and experimental notes for a range of practical activities involving iodine and iodine solutions (Hazcard 54).
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Common anions are tested on a plastic covered worksheet, for quick easy disposal. Using solutions with minimum concentrations allows closer observations and initiates talking points. Students can phot.. more
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In this microscale procedure, students can investigate confirmatory tests for common anions. It provides good talking points for the diffusion of gases and appearance of coloured halos. Students can w.. more
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Please note: This is a temporary resource containing the model risk assessment information and experimental points as they appeared on the reverse sides of the final edition of the CHIP Hazcards. This.. more
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Gives guidance on general fieldwork including specific measurements and techniques. Detailed guidance is included on measuring substances in the soil, water and air, and electronic measurements such a.. more
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All-in-one pdf file of the CLP Recipe Sheets published (or updated) up to, and including, 15th November 2024.
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The additional negative ions test tube reactions for nitrate(III), nitrate(V), sulfate(IV), phosphate and carboxylates (methanoate and ethanoate).
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