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Persulphate

The term persulphate refers to ions or compounds with more oxygen than normal sulfates.

These do not have sulfur in a different oxidation state; rather, they contain peroxide units, where two oxygens take the place of one in a normal sulfate; the oxygen atoms are in oxidation state -1.

The main forms are peroxomonosulfates and peroxodisulfates.

- Ammonium Persulphate
- Sodium Persulphate
- Potassium Persulphate


  Ammonium Persulphate

Ammonium persulphate (NH4)2S2O8 has been prepared by H. Marshall[1] by the method used for the preparation of Potassium persulfate. It is very soluble in cold water, a large fall of temperature accompanying solution. It is a very strong oxidizing agent and a radical initiator. It is used to etch copper on printed circuit boards as an alternative to ferric chloride solution[citation needed] It is also used along with tetramethylethylenediamine to catalyze the polymerization of acrylamide in making a polyacrylamide gel.



  Potassium Persulphate

Potassium persulphate (K2S2O8) is a chemical compound. It is a food additive and it is used in organic chemistry as an oxidizing agent for instance in the Elbs per sulfate oxidation

Conditions/substances to avoid are: heat, flames, ignition sources, powdered metals, phosphorus, hydride, organic matter, halogens, acids and alkali.



  Sodium Persulphate

Potassium persulphate (K2S2O8) is a chemical compound. It is a food additive and it is used in organic chemistry as an oxidizing agent for instance in the Elbs persulfate oxidation conditions/substances to avoid are: heat, flames, ignition sources, powdered metals, phosphorus, hydrides, organic matter, halogens, acids and alkalis.




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