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What is Ammonium Persulfate?

Views: 5     Author: Site Editor     Publish Time: 2023-04-23      Origin: Site

Ammonium Persulfate (APS) is a white, crystalline, odorless salt commonly used as an oxidizing agent in a wide range of industrial applications. It is also used as a bleaching agent in hair dyes, as a polymerization initiator in the manufacture of plastics, and as an etchant in printed circuit board manufacturing.

In this article, we will provide a comprehensive guide on Ammonium Persulfate, including its properties, uses, benefits, hazards, and how it works.


Chemical Properties of Ammonium Persulfate

Ammonium Persulfate is a chemical compound with the formula (NH4)2S2O8. It is composed of two ammonium ions (NH4+) and two persulfate ions (S2O82-). It is a strong oxidizing agent with a molecular weight of 228.20 g/mol.


Physical Properties of Ammonium Persulfate

Ammonium Persulfate is a white, crystalline salt that is soluble in water. It has a density of 1.98 g/cm³ and a melting point of 120°C. It is odorless and has a pH of approximately 1.5.


Uses of Ammonium Persulfate

In Industrial Applications

Ammonium Persulfate is widely used as an oxidizing agent in a range of industrial applications, including:

  • Manufacturing of dyes and pigments

  • Bleaching of textiles

  • Treatment of wastewater

  • Extraction of metals from ores

  • Electropolishing of metals

  • Chemical polishing of metals

  • Production of adhesives and sealants

  • Production of paper and pulp


In Hair Dyes

Ammonium Persulfate is also used as a bleaching agent in hair dyes. It is a common ingredient in hair bleach powders and hair color removers.


In Plastic Manufacturing

Ammonium Persulfate is used as a polymerization initiator in the manufacture of plastics. It is a key component in the production of acrylics, polyvinyl chloride (PVC), and other types of plastic.


In Printed Circuit Board Manufacturing

Ammonium Persulfate is used as an etchant in the manufacturing of printed circuit boards (PCBs). It is used to remove copper from the surface of the PCB to create circuit pathways.


Benefits of Ammonium Persulfate

Ammonium Persulfate offers several benefits in industrial and commercial applications, including:

  • It is a powerful oxidizing agent that can be used to remove impurities from materials

  • It is effective in bleaching hair and removing hair dye

  • It is a key component in the manufacture of plastics and PCBs

  • It is relatively inexpensive and readily available


Hazards of Ammonium Persulfate

Ammonium Persulfate poses several hazards to human health and the environment.


Health Hazards

Ammonium Persulfate can cause irritation to the skin, eyes, and respiratory system. Prolonged or repeated exposure to Ammonium Persulfate can cause allergic reactions, including asthma and dermatitis.


Environmental Hazards

Ammonium Persulfate can have harmful effects on the environment, particularly on aquatic organisms. It can deplete oxygen levels in water, which can lead to the death of fish and other aquatic life.


How Does Ammonium Persulfate Work?

Ammonium Persulfate works as an oxidizing agent by breaking down into sulfate and ammonium ions when dissolved in water. It reacts with organic compounds, such as dyes, pigments, and polymers, to remove impurities and produce desired chemical reactions.

In hair dyeing and bleaching, Ammonium Persulfate reacts with the melanin in hair to break down its structure and remove the color. In the production of plastics and PCBs, it initiates the polymerization process by reacting with monomers to form long chains of polymers.


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Qi Di Chem was established in 2003, is specialized in manufacturing persulfate series products (Ammonium Persulfate, Sodium Persulfate, Potassium Persulfate).

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