Ammonium Peroxodisulfate

CAS Number

7727-54-0

Molecular Formula

(NH₄)₂S₂O₈

Also known as:

Ammonium peroxodisulfate; Ammonium persulfate; APS; Ammonium peroxydisulfate

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Product Description

Ammonium Peroxodisulfate (CAS 7727-54-0) is a strong inorganic oxidizer in crystalline form. In industrial practice it is used as a reliable free-radical initiator for emulsion and solution polymerizations, as an oxidant in organic and inorganic syntheses, and as a process chemical for etching, cleaning and surface treatments. Commercial supply is offered in multiple grades with COA for quality control and process qualification.

Application

  • Polymerization initiator (emulsion & solution polymerization)
    Used as a water-soluble free-radical initiator for producing styrenic, acrylate, vinyl and other polymers in emulsion and solution processes.
  • Oxidizing agent in chemical synthesis
    Applied as a controlled inorganic oxidant in organic and inorganic transformations, including oxidative cleavage and functional-group conversion.
  • Etching / metal surface treatment
    Employed in formulations for PCB etching, metal surface activation and specialty cleaning where controlled oxidative action is required.
  • Textile and pulp bleaching / processing
    Used in select textile and pulp processes as an oxidant for bleaching and chemical modification steps.
  • Analytical reagent & laboratory use
    Supplied in small packs as a reagent for redox titrations, analytical procedures and laboratory-scale syntheses.

Technical Parameters

Parameter Value
Assay ≥ 98.0%
Appearance White crystalline powder
Loss on drying / Moisture ≤ 0.3–0.8%
pH 3.0–5.0
Residue / Insolubles ≤ 0.05%
Iron (Fe) ≤ 10–50 ppm
Density ≈ 1.9–2.1 g·cm⁻³

Applications

Bactericides/Oxidizing Agents

Quick Information

Molecular Weight 228.20 g/mol

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