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Using these sodium salts safely in practical work, Includes metabisulfite and the equivalent  potassium salts. Sodium sulfite is also known as sodium sulfate(IV), sodium hydrogensulfite  as sodium hyd.. more
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Hazcard – COSHH model risk assessment for sodium metabisulfite (sodium disulfite, disodium disulfate(IV)), sodium bisulfite (sodium hydrogensulfite, sodium hydrogensulfate(IV)), sodium sulfite (sodium.. more
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Guidance on how to prepare sodium thiosulfate.
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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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Contents Page for the Student Safety Sheets
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Complete index for the Student Safety Sheets
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An index to all the chemicals included in the 2016 Edition Hazcards and later updates. Includes Hazcard numbers and Recipe references.
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Precautions needed when using sulfur dioxide, preparing it or where it may be a by-product of a reaction.
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All Student Safety Sheets in a handy PDF format, which makes printing a whole set easier.2026 update.
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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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