Sodium persulfate and potassium persulfate are both persulfates. Both persulfates play an important role in daily life and in the chemical industry. So what is the difference between these two persulfates?
1. Sodium Persulfate
Sodium persulfate, also known as sodium persulfate, is an inorganic compound with the chemical formula Na2S2O8. It is a white crystalline powder with no odor. It is soluble in water but insoluble in ethanol. Its decomposition can be accelerated in humid air and high temperature, and oxygen is released to become sodium pyrosulfate.
Sodium persulfate main uses:
1. Mainly used as bleaching agent, oxidant and emulsion polymerization accelerator.
2. Used in waste liquid treatment, film developing and fixing agent in the photographic industry.
3. Used as a curing agent for urea-formaldehyde resin, it has a fast curing speed.
4. Etching agent for metal on the surface of printed circuit boards.
5. Used as textile desizing agent.
6. Used as sulphur dye colorant.
7. Used as a debonder for oil well fracturing fluid.
8. Used as battery depolarizer and organic polymer emulsion polymerization initiator, such as: as initiator for latex or acrylic monomer polymerization liquid, vinyl acetate, vinyl chloride and other products.
9. Used in cleaning agents, it can effectively remove impurities in water. Sodium persulfate is one of the commonly used ingredients in cleaning agents.
10. Used as disinfectant, it can effectively kill bacteria, fungi and viruses in water, and can also effectively remove odor in water. It is one of the commonly used drugs for water treatment.
11. Used for water treatment (wastewater purification), waste gas treatment, and oxidation and degradation of harmful substances in environmental treatment.
12. Used to produce high-purity hydrochloric acid and sulfuric acid.
13. Used in the manufacture of chemical raw materials, such as sodium sulfate, zinc sulfate, etc.
14. It can repair contaminated soil in agriculture.
2. Potassium Persulfate
Potassium persulfate is an inorganic compound with the chemical formula K2S2O8. It is a white crystalline powder that is soluble in water but insoluble in ethanol. It has strong oxidizing properties and is often used as a bleaching agent, oxidant, and polymerization initiator. It hardly absorbs moisture, has good stability at room temperature, is easy to store, and has the advantages of convenience and safety. Potassium persulfate main uses:
1. Mainly used as disinfectant and fabric bleaching agent.
2. Used as an initiator for emulsion polymerization of monomers such as vinyl acetate, acrylates, acrylonitrile, styrene, and vinyl chloride (operating temperature 60-85°C), as well as a polymerization accelerator for synthetic resins.
3. Potassium persulfate is an intermediate in the electrolytic production of hydrogen peroxide, and generates hydrogen peroxide through decomposition.
4. Potassium persulfate is used in the oxidation solution of steel and alloys, and in the etching and roughening of copper. It can also be used to treat solution impurities.
5. Used as analytical reagents, oxidants and initiators in chemical production. Also used in film processing and as sodium thiosulfate remover. These two persulfates have something in common in appearance, properties or uses, but the main difference between the two is the difference when used as polymerization accelerators.
3. The main difference between sodium persulfate and potassium persulfate These two persulfates have something in common in terms of appearance, properties or uses, and the main difference between the two is the difference when used as polymerization accelerators. Although they can both be used as polymerization accelerators, there are still differences between the two. Because potassium persulfate has a better initiation effect, it is mostly used in laboratories and high-end pharmaceutical industries. The cost of using potassium persulfate in low- and medium-value-added production is too high, while sodium persulfate has a relatively poor initiation effect, but its price is lower, so it is mostly used in industrial production.
Post time: Dec-02-2024
