SODIUM PERSULPHATE

Sodium Persulphate is an inorganic persulfate salt and strong oxidizing agent widely used as a radical initiator, etchant, and oxidant in industrial processing and chemical synthesis.
Sodium Persulphate is commonly used to initiate polymerization reactions, oxidize organic and inorganic species, and generate sulfate radicals in aqueous systems for cleaning and treatment applications.
Sodium Persulphate is valued for high oxidizing power, good water solubility, reliable initiation performance, and practical handling as a free-flowing crystalline solid.

CAS Number: 7775-27-1
EC Number: 231-892-1
Molecular Formula: Na2S2O8
Molecular Weight: 238.10 g/mol

Synonyms: Sodium Persulphate, Sodium Persulfate, Na2S2O8, Sodium Peroxydisulfate, Sodium Peroxodisulfate, Disodium Persulfate, Disodium Peroxydisulfate, Sodium Persulfate Initiator, Sodium Persulfate Oxidizer, Sodium Persulfate Etchant, Persulfate Salt, Peroxydisulfate Sodium Salt, Sodium Persulphate, Sodium Persulfate, Disodium Peroxodisulfate, Disodium Peroxydisulfate, Disodium Persulfate, Disodium Persulphate, Sodium Peroxodisulfate, Sodium Peroxydisulfate, Sodium Peroxodisulphate, Sodium Peroxydisulphate, Peroxydisulfuric Acid Disodium Salt, Peroxodisulfuric Acid Disodium Salt, Sodium Salt of Peroxydisulfuric Acid, Sodium Salt of Peroxodisulfuric Acid, Sodium Perdisulfate, Sodium Perdisulphate, Sodium Persulfate Oxidizer, Sodium Persulphate Oxidizer, Sodium Persulfate Oxidising Agent, Sodium Persulphate Oxidising Agent, Sodium Persulfate Oxidizing Agent, Sodium Persulphate Oxidizing Agent, Sodium Persulfate Radical Initiator, Sodium Persulphate Radical Initiator, Sodium Persulfate Polymerization Initiator, Sodium Persulphate Polymerisation Initiator, Sodium Persulfate Free-Radical Initiator, Sodium Persulphate Free-Radical Initiator, Sodium Persulfate Etching Agent, Sodium Persulphate Etching Agent, Sodium Persulfate Cleaning Agent, Sodium Persulphate Cleaning Agent, Sodium Persulfate Bleaching Agent, Sodium Persulphate Bleaching Agent, Sodium Persulfate Laboratory Reagent, Sodium Persulphate Laboratory Reagent, Sodium Persulfate Industrial Grade, Sodium Persulphate Industrial Grade, Sodium Persulfate Technical Grade, Sodium Persulphate Technical Grade, Sodium Persulfate High Purity, Sodium Persulphate High Purity, Sodium Persulfate Reagent Grade, Sodium Persulphate Reagent Grade, Sodium Persulfate Analytical Grade, Sodium Persulphate Analytical Grade, Sodium Persulfate CAS 7775-27-1, Sodium Persulphate CAS 7775-27-1, Sodium Persulfate Oxidant, Sodium Persulphate Oxidant, Sodium Persulfate Strong Oxidizer, Sodium Persulphate Strong Oxidizer, Sodium Persulfate Initiator Grade, Sodium Persulphate Initiator Grade, Sodium Persulfate Chemical Oxidizer, Sodium Persulphate Chemical Oxidizer, Sodium Persulfate Polymer Aid, Sodium Persulphate Polymer Aid, Sodium Persulfate Synthesis Reagent, Sodium Persulphate Synthesis Reagent, Sodium Persulfate Specialty Chemical, Sodium Persulphate Specialty Chemical, Sodium Persulfate Fine Chemical, Sodium Persulphate Fine Chemical, Sodium Persulfate Reactive Oxidizer, Sodium Persulphate Reactive Oxidizer, Sodium Persulfate Radical Source, Sodium Persulphate Radical Source, Sodium Persulfate Industrial Oxidant, Sodium Persulphate Industrial Oxidant, Sodium Persulfate Chemical Feedstock, Sodium Persulphate Chemical Feedstock

APPLICATIONS

Sodium Persulphate is used as a free-radical initiator in emulsion polymerization to produce latex and water-based polymers.
Sodium Persulphate is used in suspension polymerization where reliable radical formation supports consistent particle formation.
Sodium Persulphate is incorporated into acrylic polymer manufacturing to initiate polymerization under controlled temperature profiles.

Sodium Persulphate is used in styrene-based polymer systems as an initiator for selected aqueous polymerization routes.
Sodium Persulphate is used in copolymer production where controlled initiation helps manage conversion and molecular weight.
Sodium Persulphate is used in redox initiation systems in combination with suitable activators to enable lower-temperature polymerization.

Sodium Persulphate is used in printed circuit board manufacturing as an oxidizing etchant for copper in compatible etching baths.
Sodium Persulphate is used in electronics cleaning and surface preparation where controlled oxidation improves process consistency.
Sodium Persulphate is used in microfabrication-related processes where etch rate and bath stability are important.

Sodium Persulphate is used in metal surface treatment to remove oxides and improve adhesion before coating in compatible systems.
Sodium Persulphate is used in aluminum and copper cleaning steps where oxidation assists in residue removal.
Sodium Persulphate is incorporated into pickling and descaling chemistries where controlled oxidizing power improves performance.

Sodium Persulphate is used in wastewater treatment to oxidize difficult-to-degrade organic contaminants under activated conditions.
Sodium Persulphate is used in in-situ chemical oxidation where persulfate activation generates reactive radicals for remediation.
Sodium Persulphate is applied in soil and groundwater cleanup programs where sulfate radical chemistry is selected.

Sodium Persulphate is used in industrial cleaning formulations as an oxidizing booster for removal of organic stains and residues.
Sodium Persulphate is incorporated into cleaning systems where controlled oxidation supports decontamination and brightening.
Sodium Persulphate is used in equipment cleaning steps where oxidizing action improves removal of stubborn soils.

Sodium Persulphate is used in textile processing as an oxidant for desizing and scouring steps in compatible processes.
Sodium Persulphate is used in denim and fabric finishing where oxidative treatments create controlled effects.
Sodium Persulphate is incorporated into bleaching-support systems where oxidation improves whiteness and cleanliness.

Sodium Persulphate is used in hair bleaching powders and lightening systems as an oxidizing component in professional formulations.
Sodium Persulphate is used in hair highlighting products to generate the oxidizing environment needed for melanin breakdown.
Sodium Persulphate is incorporated into salon lighteners where controlled performance and consistent powder behavior are required.

Sodium Persulphate is used in paper and pulp processing as an oxidant in selected bleaching and cleaning stages.
Sodium Persulphate is incorporated into process water treatment where oxidation helps control organic load.
Sodium Persulphate is used in specialty pulp applications where controlled oxidizing strength improves brightness development.

Sodium Persulphate is used in chemical synthesis as a strong oxidant for selective conversion of functional groups.
Sodium Persulphate is used in analytical chemistry for oxidative digestion of samples in compatible methods.
Sodium Persulphate is incorporated into laboratory protocols where clean, water-soluble oxidants are preferred.

Sodium Persulphate is used in polymer grafting and surface modification to generate radicals for functionalization.
Sodium Persulphate is used in hydrogel synthesis where initiation of radical polymerization creates crosslinked networks.
Sodium Persulphate is incorporated into water-based resin systems where radical initiation supports curing or modification.

Sodium Persulphate is used in cleaning of heat exchangers and industrial equipment where oxidation helps remove organic fouling.
Sodium Persulphate is applied in recirculating cleaning loops where controlled oxidant dosing improves safety and performance.
Sodium Persulphate is used in maintenance programs where oxidizing cleaners restore process efficiency.

Sodium Persulphate is used in formulation and manufacturing where an oxidizing solid with good water solubility is needed.
Sodium Persulphate is used where sulfate radical chemistry is desired through activation with heat, UV, base, or transition metals.
Sodium Persulphate is valued across industries because Sodium Persulphate provides high oxidizing power and broad functional utility.

DESCRIPTION

Sodium Persulphate is typically a white crystalline powder or granular solid with little to no odor.
Sodium Persulphate is a strong oxidizer that can accelerate combustion of combustible materials and can react vigorously with reducing agents.
Sodium Persulphate dissolves in water to form persulfate solutions that can generate reactive radicals under suitable activation conditions.

Sodium Persulphate is used as a radical initiator because Sodium Persulphate decomposes to form sulfate radicals that start polymerization chains.
Sodium Persulphate performance depends on temperature, pH, impurities, and the presence of activators or catalysts in the system.
Sodium Persulphate solutions are typically prepared fresh or managed with controlled storage to maintain consistent oxidizing strength.

Sodium Persulphate can cause irritation and may trigger respiratory sensitization in some individuals, especially as dust exposure increases.
Sodium Persulphate should be handled with care to minimize dust generation and to avoid contact with incompatible materials.
Sodium Persulphate should be stored in cool, dry conditions away from heat, moisture, and combustible or reducing substances.

PROPERTIES

Chemical Formula: Na2S2O8
Molecular Weight: 238.10 g/mol
Common Name: Sodium Persulphate (Sodium Persulfate)
Chemical Nature: Inorganic persulfate salt (strong oxidizing agent)
Appearance: White crystalline powder or granules
Odor: Odorless
Solubility: Soluble in water; forms clear oxidizing solutions
Decomposition: Decomposes with heat to generate reactive sulfate species; accelerated by contamination and moisture
pH (1% solution): Typically mildly acidic (grade dependent)
Density: ~2.3 g/cm³ (typical; grade dependent)
Oxidizing Strength: Strong oxidizer; supports radical generation upon activation
Flash Point: Not applicable (non-volatile solid; oxidizer)
Stability: Stable when dry and cool; avoid heat, moisture, and contaminants
Storage Temperature: 15–25°C, dry, tightly closed, away from incompatibles
Shelf Life: Typically 24 months in original sealed packaging (supplier dependent)

FIRST AID

Inhalation:
Move to fresh air immediately if dust is inhaled.
Seek medical attention if coughing, wheezing, or respiratory irritation persists.
Avoid further exposure because persulfates can trigger sensitization in susceptible individuals.

Skin Contact:
Remove contaminated clothing and rinse skin with plenty of water.
Wash with soap and water after thorough rinsing.
Seek medical advice if irritation, redness, or burning sensation persists.

Eye Contact:
Rinse cautiously with water for several minutes and continue rinsing.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if pain, redness, or visual disturbance persists.

Ingestion:
Rinse mouth with water and do not induce vomiting.
Give small amounts of water if the person is conscious and not convulsing.
Seek medical attention, especially if a significant amount is swallowed.

Note to Physicians:
Treat symptomatically and supportively.
Consider oxidizer exposure and potential for irritation.
Monitor respiratory status if dust exposure was significant.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including gloves, safety goggles, and protective clothing.
Avoid generating dust and avoid inhalation of dust during weighing and charging.
Keep Sodium Persulphate away from organic materials, reducing agents, and combustible substances.

Ventilation:
Use local exhaust or general ventilation where dust may be generated.
Maintain good airflow during mixing and transfer operations.
Use closed handling systems when feasible to minimize airborne particulate.

Storage:
Store in a cool, dry place in tightly closed containers.
Protect from moisture because moisture can accelerate decomposition and reduce activity.
Keep away from heat sources, direct sunlight, and incompatible chemicals including reducing agents and organics.

Spill and Leak Procedures:
Avoid dust generation and wear appropriate PPE during cleanup.
Collect spilled material using clean, dry tools and place into suitable containers.
Do not use combustible absorbents and dispose according to local regulations for oxidizing materials.

Handling Precautions:
Do not mix Sodium Persulphate with incompatible materials and avoid contamination with metals, rust, and dirt.
Use dedicated, clean equipment to prevent unintended decomposition or reaction.
Rotate stock using FIFO practices and follow site-specific procedures for oxidizers.