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Guidance on how to prepare potassium peroxodisulfate(VI) and sodium peroxodisulfate(VI) solutions.
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Hazcard – COSHH model risk assessment for disodium peroxodisulfate(VI) (sodium persulfate), dipotassium peroxodisulfate(VI) (potassium persulfate), sodium hexanitritocobaltate(III) (sodium cobaltinitr.. more
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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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Brief risk assessment guidance and experimental notes for a range of activities involving (oxidising) ammonium salts (Hazcard 8).
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Index to currently published guidance on the preparation of specific solutions and other reagents. Includes a summary Contents List giving the dates of the most recent versions of recipes. Note: this .. more
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Hazcard – COSHH model risk assessment for ammonium nitrate(V) and ammonium persulfate. Read this Hazcard in conjunction with About Hazcards (Guide GL 120).
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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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Complete index for the Student Safety Sheets
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Iodine clock reactions produce iodine, which reacts with starch to give the distinct blue/black colouration. The iodide-persulfate method is one of the simplest clock reactions, involving simple kinet.. more
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This contains all Hazcards updated in 2025 in one handy file. For a all in one file of ALL Hazcards see updates here.
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