PRODUCTS

POTASSIUM PERSULFATE

Potassium Persulfate can be used as industrial oxidant in dyes and inorganic salts.
Potassium Persulfate can be used as emulsion polymerization initiators in synthetic rubber industry.
Potassium Persulfate can be used as polymerization accelerator in synthetic resin.

CAS Number: 7727-21-1
EC Number: 231-781-8
MDL number: MFCD00011386
Linear Formula: K2S2O8
Molecular Formula: K2O8S2 / K2S2O8

SYNONYMS:
POTASSIUM PERSULFATE, 7727-21-1, Potassium peroxydisulfate, Anthion, Potassium peroxodisulfate, Potassium peroxydisulphate, Dipotassium peroxydisulfate, Dipotassium persulfate, potassium persulphate, Peroxydisulfuric acid, dipotassium salt, dipotassium;sulfonatooxy sulfate, MFCD00011386, 6B86K0MCZC, DTXSID4029690, Caswell No. 700, Dipotassium peroxodisulphate, HSDB 2638, EINECS 231-781-8, UN1492, UNII-6B86K0MCZC, EPA Pesticide Chemical Code 063602, potasium persulfate, potassium persuifate, Peroxydisulfuric acid (((HO)S(O)2)2O2), dipotassium salt, potassium monopersulphate, potassium peroxidisulfate, EC 231-781-8, DIPOTASSIUM PERSULPHATE, DTXCID809690, CHEMBL3186858, POTASSIUM PERSULFATE [MI], USHAGKDGDHPEEY-UHFFFAOYSA-L, DIPOTASSIUM PEROXYDISULPHATE, POTASSIUM PERSULFATE [HSDB], POTASSIUM PERSULFATE [INCI], POTASSIUM PERSULFATE [VANDF], Tox21_200798, Peroxydisulfuric acid dipotassium salt, AKOS015950646, NSC 326763, Potassium persulfate, ACS Reagent Grade, NCGC00258352-01, BP-13445, CAS-7727-21-1, FT-0689072, NS00081344, Potassium peroxydisulfate, low nitrogen, ACS, Potassium persulfate [UN1492] [Oxidizer], dipotassium [(sulfonatoperoxy)sulfonyl]oxidanide, Potassium persulfate, Trace metals grade 99.99%, Q415226, Peroxydisulfuric acid (((HO)S(O)2)2O2), potassium salt (1:2), KPS, POTASSIUM PEROXODISULFATE, POTASSIUM PERSULPHATE, PEROXYDISULFURIC ACID, Potassum Suphates, DIPOTASSIUM PEROXYDISULFATE, anthion, Virkon S, BETZ 2701, Dipotassium disulfate, K2S2O8, SCHEMBL8748, DI-POTASSIUM PEROXODISULPHATE, POTASSIUM PERSULFATE, PURIFIED, TNP-201 DECOMPOSITION SOLUTION 1, Peroxydisulfuricacid,dipotassiumsalt, peroxydisulfuricacid([(ho)s(o)2]2o2),dipotassiumsalt, Peroxydisulphuric acid dipotassium salt, KPS, Potassium peroxodisulfate, POTASSIUM PEROXYDISULFATE

Potassium persulfate is a chemical compound with the molecular formula K2S2O8, consisting of white crystals that can dissolve in water.
Potassium Persulfate has a decomposition point below 212°F (100°C).
Potassium Persulfate is an inorganic salt.

Potassium persulfate is the inorganic compound with the formula K2S2O8.
Also known as potassium peroxydisulfate or KPS, Potassium Persulfate is a white solid that is sparingly soluble in cold water, but dissolves better in warm water.

Potassium Persulfate is a powerful oxidant, commonly used to initiate polymerizations.
Potassium Persulfate is a white crystalline solid.
Specific gravity of Potassium Persulfate is 2.477.

Potassium Persulfate is used to initiate polymerization of various alkenes leading to commercially important polymers such as styrene-butadiene rubber and polytetrafluoroethylene and related materials.
In solution, the dianion dissociates to give radicals:
[O3SO-OSO3]2− ⇌ 2 [SO4]•−

Potassium persulfate (Formula is K2S2O8) is also known as potassium peroxydisulfate, molecular weight is 270.32, decomposition temperature is 50-60℃.
Potassium Persulfate is white, odorless crystal, it is soluble in water, insoluble in alcohol.

Potassium Persulfate has strong oxidizing.
Potassium persulfate is the inorganic compound with the formula K2S2O8.
Also known as potassium peroxydisulfate, Potassium Persulfate is a white solid that is sparingly soluble in cold water, but dissolves better in warm water.

Potassium Persulfate is a powerful oxidant, commonly used to initiate polymerizations.
Potassium Persulfate appears as a white crystalline solid.
Specific gravity of Potassium Persulfate is 2.477.

Decomposition of Potassium Persulfate is below 100 °C.
Potassium persulfate, is composed of white crystals that are soluble in water, and it decomposes below 212°F (100°C).
Potassium Persulfate is a strong oxidizing agent and an irritant, with a four-digit UN identification number of 1492.

Potassium persulfate is the inorganic compound with the formula K2S2O8.
Also known as potassium peroxydisulfate, Potassium Persulfate is a white solid that is sparingly soluble in cold water, but dissolves better in warm water.

Potassium Persulfate is a powerful oxidant, commonly used to initiate polymerizations.
Potassium persulfate can be prepared by electrolyzing a cold solution of potassium bisulfate in sulfuric acid or by adding potassium bisulfate to ammonium peroxydisulfate solution.

Potassium Persulfate is a white crystalline, odourless salt with the density of 2.477.
Potassium Persulfate can be decomposed about 100℃ and dissolved in water and has strong oxidation.
Potassium Persulfate has the particular advantage of being almost non-hygroscopic, having a good storage stability at normal temperature, and being easy and safe to handle.

Potassium persulfate is a powerful oxidizing agent widely utilized in various industrial and research applications.
Known for its stability and effectiveness, Potassium Persulfate serves as a key initiator in polymerization processes, making it invaluable in the production of plastics and synthetic fibers.

Potassium Persulfate's ability to generate free radicals upon thermal decomposition allows for efficient initiation of reactions, which is particularly beneficial in the manufacture of acrylics and other polymers.
Additionally, potassium persulfate is employed in the formulation of cleaning agents and bleaching processes, enhancing the efficacy of these products in both household and industrial settings.

In the realm of analytical chemistry, potassium persulfate is often used for the digestion of organic materials, facilitating the determination of total nitrogen and other elements in environmental samples.
Its role as a strong oxidizer also extends to applications in water treatment, where Potassium Persulfate aids in the removal of contaminants and disinfection.

With its unique properties and versatility, potassium persulfate stands out as a reliable choice for researchers and industry professionals seeking effective solutions in their respective fields
Potassium persulfate, is composed of white crystals that are soluble in water, and it decomposes below 212°F (100°C).

Potassium Persulfate is a colourless and odourless crystal or white powder.
Potassium persulfate is a colorless or white, odorless crystalline material.
Potassium persulfate is a powerful oxidant, commonly used to initiate polymerizations.

Potassium Persulfate is a white crystalline solid. Specific gravity 2.477.
Potassium Persulfate decomposes below 100°C.
Potassium Persulfate is water soluble.

Potassium Persulfate is slowly decomposed by water.
Potassium Persulfate rapidly liberates oxygen when heated, and especially so when wet.
Potassium persulfate is an oxidizing agent.

Potassium Persulfate is noncombustible but accelerates the burning of combustible material.
Potassium persulfate plus a little potassium hydroxide and water released sufficient heat and oxygen to ignite a polythene (polyethylene) liner in a container.

USES and APPLICATIONS of POTASSIUM PERSULFATE:
Potassium persulfate is mainly used as initiator and strong oxidizing agents.
Initiator uses of Potassium Persulfate: Potassium persulfate is the initiator of latex or solution polymerization of acrylic monomers, vinyl acetate, vinyl chloride and other product, and it is also the initiator of styrene, acrylonitrile, butadiene and the like emulsion for copolymerisation.

Potassium Persulfate can be used as gluten agent of wheat flour.
Potassium Persulfate is mainly used as a disinfectant and fabric bleach.
Potassium Persulfate can be used as industrial oxidant in dyes and inorganic salts.

Potassium Persulfate can be used as emulsion polymerization initiators in synthetic rubber industry.
Potassium Persulfate can be used as polymerization accelerator in synthetic resin.
In addition, Potassium Persulfate can also be used in the steel, photographic industry and medicine.

Potassium Persulfate can be used as analytical reagents, oxidants and plastic initiator, it can also be used in the film photofinishing.
Potassium persulfate is a powerful oxidant, commonly used to initiate polymerizations.
Potassium Persulfate is used for bleaching and textile desizing, as an oxidizing agent and antiseptic, in purification of ammonium sulfate, and in the manufacture of soap and pharmaceuticals.

Potassium Persulfate is also used as a laboratory oxidant and photography chemical.
Potassium Persulfate is a food additive.
Potassium persulfate is used to initiate the polymerization of styrene to form monodispersed, surfactant-free polystyrene spheres.

Potassium persulfate is used as an oxidant to generate 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation to measure the antioxidant activities of natural compounds.
Potassium Persulfate is used bleaching fabrics, soaps; in photography under the name Anthion to remove last traces of thiosulfate from plates and paper; in analytical chemistry.

Polymerization Initiator: Potassium Persulfate triggers polymerization of monomers such as styrene, acrylics, vinyl acetate, vinyl chloride, and more, forming materials like PTFE, SBR, etc.
Oxidizing Agent: Potassium Persulfate is used in organic chemistry (e.g., Elbs and Boyland–Sims oxidations), textile/pulp bleaching, surface etching, circuit board cleaning, starch modification, wastewater treatment, and more.

Hair Care: Potassium Persulfate acts as a bleaching/decolorizing agent in hair dyes and lighteners.
Food Additive: Formerly used as flour improver (E number E922), though Potassium Persulfate's no longer approved in the EU.
Potassium Persulfate is used in organic chemistry as an oxidizing agent, for instance, in the Elbs persulfate oxidation of phenols and the Boyland–Sims oxidation of anilines.

As a strong yet stable bleaching agent, Potassium Persulfate also finds use in various hair bleaches and lighteners.
Potassium Persulfate has been used as an improving agent for flour with the E number E922, although it is no longer approved for this use within the EU.

Products with Potassium Persulfate are allowed for use in EWG VERIFIED but must meet use restrictions and warnings based on EWG review of company data.
Potassium Persulfate's score is higher if used in product forms that are inhalable (e.g., sprays, powders) because of respiratory concerns.

Potassium Persulfate is used in organic chemistry as an oxidizing agent, for instance in the Elbs persulfate oxidation of phenols and the Boyland–Sims oxidation of anilines.
As a strong yet stable bleaching agent, Potassium Persulfate also finds use in various hair bleaches and lighteners.

Potassium Persulfate has been used as an improving agent for flour with the E number E922, although it is no longer approved for this use within the EU.
Potassium Persulfate is commonly used as bleaching agents, oxidizing agents.

Potassium Persulfate can be used as the polymerization initiator, it almost does not absorb moisture.
Potassium Persulfate has good stability at room temperature.
Potassium Persulfate is easy to be stored, and it has the advantages of convenience and safety, etc.

Potassium Persulfate involves polymerization initiator, circuit board cleaning and etching, copper and aluminum surface activation, modified starch, pulp and textile bleaching and desizing low temperature, circulating water purification treatment systems, oxidative degradation of harmful gases, low formaldehyde adhesive stick together accelerated oxidation of ethanol and aromatic hydrocarbons, disinfectants, hair dye decolorization.

The primary uses of Potassium Persulfate are in bleaching, as an oxidizing agent, as an antiseptic, as a polymerization promoter, and in the manufacture of pharmaceuticals.
In industry, Potassium Persulfate is produced through the chemical oxidation of potassium sulfate using fluorine.

Application of Potassium Persulfate: Initiator of polymerization, Photography industry, Food industry, Glass Industry, Detergent and cosmetics, Water and wastewater treatment, Oxidizing agent of persulfate.
Potassium Persulfate is used as a polymerization accelerator in synthetic resins, Adhesives and coatings.

Potassium Persulfate is used as an analytical reagent for the determination of manganese content in steel analysis.
Potassium Persulfate is also used as a disinfectant, a fabric bleaching agent, a sodium thiosulfate remover, and a deodorizing agent.
Potassium Persulfate is used as an oxidant for dyes and inorganic salts in chemical reactions.

Potassium Persulfate is used as an initiator for elastomer in synthetic rubber.
Potassium Persulfate is used as an accelerator for polyvinyl chloride emulsion polymerization in the production of synthetic resin.
Potassium Persulfate is also a raw material for the preparation of hydrogen peroxide.

Potassium Persulfate is used for bleaching and textile desizing, as an oxidizing agent and antiseptic, in purification of ammonium sulfate, and in the manufacture of soap and pharmaceuticals.
Potassium Persulfate is also used as a laboratory oxidant and photography chemical.
Potassium Persulfate is a food additive.

Potassium persulfate is used to initiate the polymerization of styrene to form monodispersed, surfactant-free polystyrene spheres.
Potassium persulfate is used as an oxidant to generate 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation to measure the antioxidant activities of natural compounds

Potassium Persulfate is used bleaching fabrics, soaps; in photography under the name Anthion to remove last traces of thiosulfate from plates and paper; in analytical chemistry.
Potassium Persulfate is used as initiator, bleach, oxidant, etc.

-Strong oxidizing agent uses of Potassium Persulfate:
Potassium Persulfate is used as desizing agent and bleach activator.
Potassium Persulfate is used for oxidative degradation of harmful substances in pool and closed circular loop in water.

Potassium Persulfate can be applied in the production of starch modifier and applied in the production of adhesive and coating agent.
Potassium Persulfate can be applied in the branched-chain oxidation, alcohol and aromatic hydroxy oxidation.
Potassium Persulfate is one of the basic constituent of hair dyes, it plays the role of decolorization.

-Potassium Persulfate is used to initiate polymerization of various alkenes leading to commercially important polymers such as styrene-butadiene rubber and polytetrafluoroethylene and related materials.
In solution, the dianion dissociates to give radicals:
[O3SO-OSO3]2− ⇌ 2 [SO4]•−

NATURE of POTASSIUM PERSULFATE:
Potassium Persulfate is a colorless or white crystals.
Potassium Persulfate has no odor.
Density of Potassium Persulfate is 2.477.

Potassium Persulfate is soluble in about 50 parts of water, 25 parts of 40℃ water.
Aqueous solution of Potassium Persulfate is acidic.

Potassium Persulfate is insoluble in ethanol.
The gradual decomposition of Potassium Persulfate in air releases oxygen, and the decomposition is faster at high temperature, and the total decomposition is at 100℃.

PREPARATION METHOD of POTASSIUM PERSULFATE:
Ammonium persulfate was dissolved in water, and potassium hydroxide solution was added.
The mixture was heated under aeration until ammonia was depleted.
After cooling, suction filtration, crystallization, washing, drying to obtain Potassium Persulfate.

PROPERTIES OF POTASSIUM PERSULFATE:
*Half-life
80℃-1.5 hours; 70℃-7.7 hours; 60℃-33 hours; 45℃-292 hours; 35℃-1600 hours.

*Recrystallization
Potassium persulfate dissolves in 30℃ water, cools, then the recrystallized product can be obtained.
Potassium Persulfate is filtered and dried under reduced pressure in the presence of calcium chloride.

*Solubility in water(g/100ml)
Grams which dissolves in per 100 ml of water: 4.7g/20 ℃.

CHEMICAL PROPERTIES of POTASSIUM PERSULFATE:
Potassium Persulfate is colorless or white triclinic crystalline powder.
Potassium Persulfate is soluble in water, the solubility is 1.75g/100ml water at 0℃, the solubility is 5.3g/100ml water at 20℃.
Potassium Persulfate is insoluble in alcohol.
Aqueous solution of Potassium Persulfate is acidic.

PRODUCTION METHOD of POTASSIUM PERSULFATE:
Potassium sulfate method
Ammonium sulfate and sulfuric acid formulates to form liquid electrolyte, it is decontaminated by electrolysis, HSO4- can discharge and generate peroxydisulfate acid at the anode, and then reacts with ammonium sulfate to generate ammonium persulfate.

Then replacement reaction can happen when potassium is added.
The finished product of potassium persulfate can be obtained after cooling, separation, crystallization, drying.

Anode reaction: 2HSO4- - 2e → H2S2O8
Cathodic reaction: 2H+ + 2e → H2 ↑
(NH4)2SO4 + H2S2O8 → (NH4)2S2O8 + H2SO4
(NH4)2S2O8 + K2SO4 + H2SO4 → K2S2O8 + 2NH4HSO4

Potassium Persulfate can be derived by replacement reaction with ammonium persulfate and potassium sulfate, then it goes through cooling, separation, crystallization, drying.

CHEMICAL PROPERTIES of POTASSIUM PERSULFATE:
Potassium Persulfate is a colourless odourless crystals or white powder.
Potassium persulfate is a colorless or white, odorless crystalline material.

PHYSICAL PROPERTIES of POTASSIUM PERSULFATE:
Potassium Persulfate is a colorless or white crystals; triclinic structure; density 2.477 g/cm³.
Potassium Persulfate is stable in solid crystalline form.

Potassium Persulfate decomposes on heating, evolving oxygen; completely decomposes at about 100°C.
Potassium Persulfate is sparingly soluble in cold water 1.75 g/100mL at 0°C.

Potassium Persulfate is moderately soluble at ordinary temperature, 5.29 g/100 mL at 20°C.
Potassium Persulfate is aqueous solution acidic and unstable, decomposing slowly at room temperature and more rapidly when the solution is warmed; insoluble in alcohol.

PREPARATION of POTASSIUM PERSULFATE:
Potassium persulfate can be prepared by electrolysis of a mixture of potassium sulfate and potassium hydrogen sulfate at a high current density:
2KHSO4 → K2S2O8 + H2
Also, Potassium Persulfate can be prepared by adding potassium hydrogen sulfate, KHSO4, to an electrolyzed solution of ammonium hydrogen sulfate, NH4HSO4.

PURIFICATION METHODS of POTASSIUM PERSULFATE:
Crystallise Potassium Persulfate twice from distilled water (10mL/g) and dry it at 50o in a vacuum desiccator.
Potassium Persulfate's solubility in H2O is 1.6% at 0o, 4.5% at 20o, and 7.2% at 30o.
An aqueous solution decomposes on long standing with evolution of O2 and formation of KHSO4.
Potassium Persulfate is a powerful oxidising agent.
Store Potassium Persulfate at ~10o.

*Incompatibilities:
A strong oxidizer.
Potassium Persulfate is incompatible with combustible, organic or other readily oxidizable materials; sulfur, metallic dusts, such as aluminum dust; chlorates and perchlorates.
Potassium Persulfate ttacks chemically active metals.
Keep Potassium Persulfate away from moisture.

*Waste Disposal:
Use large volumes of reducing agents (bisulfites, e.g.).
Neutralize Potassium Persulfate with soda ash and drain into sewer with abundant water.

AIR & WATER REACTIONS of POTASSIUM PERSULFATE:
Potassium Persulfate is water soluble.
Potassium Persulfate is slowly decomposed by water.
The salt rapidly liberates oxygen when heated, and especially so when wet.

STRUCTURE of POTASSIUM PERSULFATE:
The sodium and potassium salts are very similar.
In the potassium salt, the O-O distance is 1.495 Å.
The individual sulfate groups are tetrahedral, with three short S-O distances near 1.43 and one long S-O bond at 1.65 Å.

PREPARATION of POTASSIUM PERSULFATE:
Potassium persulfate can be prepared by electrolysis of a cold solution potassium bisulfate in sulfuric acid at a high current density.
2 KHSO4 → K2S2O8 + H2

Potassium Persulfate can also be prepared by adding potassium bisulfate (KHSO4) to a solution of the more soluble salt ammonium peroxydisulfate (NH4)2S2O8.
In principle, Potassium Persulfate can be prepared by chemical oxidation of potassium sulfate using fluorine.
Several million kilograms of the ammonium, sodium, and potassium salts of peroxydisulfate are produced annually.

PHYSICAL and CHEMICAL PROPERTIES of POTASSIUM PERSULFATE:
Molecular Weight: 270.32
Molecular Weight : 270.3 kg/kmol
Specific Gravity : 2,480 kg/m³
pH Value (%5 solution) : 3-7
Thermal Decomposition : ≥65°C
Solubility in Water : 6(25 °C) 17(50 °C) (g/100 g H2O)
Physical state: powder
Color: white

Odor: odorless
Melting point/freezing point:
Melting point: 100 °C
Initial boiling point and boiling range: No data available
Flammability (solid, gas): The product is not flammable.
Upper/lower flammability or explosive limits: No data available
Flash point: Not applicable
Autoignition temperature: > 600 °C

Decomposition temperature: 170 °C
pH 2,5 - 4,5 at 27 g/l at 25 °C
Viscosity
Viscosity, kinematic: No data available
Viscosity, dynamic: No data available
Water solubility: 52,77 g/l at 20 °C
Partition coefficient: n-octanol/water:
Not applicable for inorganic substances
Vapor pressure: < 0,1 hPa at 25 °C

Density: 2,477 g/cm3
Relative density: 1,39 at 20 °C
Relative vapor density: 9,33 - (Air = 1.0)
Particle characteristics: No data available
Explosive properties: No data available
Oxidizing properties: The substance or mixture is classified as oxidizing with the category 3.
Other safety information:
Relative vapor 9,33 - (Air = 1.0)
Compound Formula: K2O8S2
Molecular Weight: 270.32

Appearance: White powder or crystals
Melting Point: N/A
Boiling Point: N/A
Density: 2.477 g/cm3
Solubility in H2O: N/A
Exact Mass: 269.830872
Monoisotopic Mass: 269.830872
Appearance: white, finely crystalline solid
Assay: (typically) ca. 99.0 % w/w
Active oxygen: (AO, typically) ca. 5.9 % w/w

Acid: (calculated as H2SO4, typically) ca. 0.05 % w/w
Iron content: (typically) ca. 1 mg/kg
Bulk density: ca. 1100 kg/m3
Melting point: (decomposition)
Solubility in water: at 10 / 20 / 40 / 60 °C ca. 30 / 50 / 105 / 210 g/L
pH of a 1 % solution in water: ca. 3.7

pH of a 10 % solution in water: ca. 3.1
Decomposition temperature: (SADT)* 170 °C
Recommended storage temperature: < 30 °C
Storage: stability as from date of delivery 12 months
Moisture content: (typically) < 0.03 % w/w
Density: 2.477 g/cm3
Melting Point: 100 °C (decomposition)

pH value: 2.5 - 4.5 (27 g/l, H₂O, 25 °C)
Vapor pressure: <0.1 hPa (25 °C)
Bulk density: 1150 kg/m3
Solubility: 50 g/l
Molecular Weight: 270.33
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 8

Rotatable Bond Count: 1
Exact Mass: 269.8308723
Monoisotopic Mass: 269.8308723
Topological Polar Surface Area: 150 Å²
Heavy Atom Count: 12
Formal Charge: 0
Complexity: 206

Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 3
Compound Is Canonicalized: Yes
Molecular Formula: K₂O₈S₂

Appearance: White to Off-White Solid
Melting Point: No data available
Molecular Weight: 270.32
Storage: 20°C
Solubility: Water (Slightly)
Molecular Formula :K2O8S2
Molar Mass: 270.32
Density: 2.47

Melting Point: 1067 °C
Boling Point: 1689 °C
Water Solubility: 5 g/100 mL (20 ºC)
Solubility: H2O: 0.5M at20°C, clear, colorless
Vapor Presure: 0 Pa at 25℃
Vapor Density: 9.3 (vs air)

Appearance: Solid
Specific Gravity: 2.477
Color: White
Odor: Odorless
Exposure Limit: ACGIH: TWA 0.1 mg/m3
Merck: 14,7656
PH: 3.2 (50g/l, H2O, 20℃)

Storage Condition: Store at +5°C to +30°C.
Stability: Stable.
Properties: colorless or white triclinic crystal powder.
relative density: 2.477
solubility: soluble in water, solubility: 1.75g/100ml water at 0 ℃,
solubility: 5.3g/100ml water at 20 ℃.
Insoluble in alcohol.
The aqueous solution was acidic.

Melting point: 1067 °C
Boiling point: 1689 °C
Density: 2.47
vapor density: 9.3 (vs air)
vapor pressure: 0 Pa at 25℃
storage temp.: Store at +5°C to +30°C.
solubility: H2O: 0.5 M at 20 °C, clear, colorless
form: Solid

Specific Gravity: 2.477
color: White
PH: 3.2 (50g/l, H2O, 20℃)
Odor: Odorless
PH Range: 2.5 - 4.5
Water Solubility: 5 g/100 mL (20 ºC)
Merck: 14,7656

Exposure limits ACGIH: TWA 0.1 mg/m3
Stability: Stable.
Strong oxidizer.
Incompatible with strong reducing agents,
organic materials, combustible materials.
InChIKey: USHAGKDGDHPEEY-UHFFFAOYSA-L
LogP: -1 at 20℃
Substances Added to Food (formerly EAFUS): POTASSIUM PERSULFATE
FDA 21 CFR: 172.210; 175.105; 175.210; 176.170; 177.2600

CAS DataBase Reference: 7727-21-1(CAS DataBase Reference)
EWG's Food Scores: 3-6
FDA UNII: 6B86K0MCZC
EPA Substance Registry System: Potassium persulfate (7727-21-1)
Cosmetics Info: Potassium Persulfate
Compound Formula: K2O8S2
Molecular Weight: 270.32

Appearance: White powder or crystals
Melting Point: N/A
Boiling Point: N/A
Density: 2.477 g/cm3
Solubility in H2O: N/A
Exact Mass: 269.830872
Monoisotopic Mass: 269.830872

Linear Formula: K2O8S2
MDL Number: MFCD00011386
EC No.: 231-781-8
Beilstein/Reaxys No.: N/A
Pubchem CID: 24412
IUPAC Name: dipotassium; sulfonatooxy sulfate
SMILES: [O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]

InchI Identifier: InChI=1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
InchI Key: USHAGKDGDHPEEY-UHFFFAOYSA-L
Melting point: 1067 °C
Boiling point: 1689 °C
density: 2.47
vapor density: 9.3 (vs air)
vapor pressure: 0 Pa at 25℃
storage temp.: Store at +5°C to +30°C.

Solubility: H2O: 0.5 M at 20 °C, clear, colorless
Form: Solid
Specific Gravity: 2.477
Color: White
pH: 3.2 (50 g/l, H2O, 20℃)
Odor: Odorless
pH Range: 2.5 - 4.5
Water Solubility: 5 g/100 mL (20 ºC)
Merck: 14,7656
Exposure limits: ACGIH: TWA 0.1 mg/m³

InChIKey: USHAGKDGDHPEEY-UHFFFAOYSA-L
LogP: -1 at 20℃
CAS DataBase Reference: 7727-21-1 (CAS DataBase Reference)
EPA Substance Registry System: Potassium persulfate (7727-21-1)
CAS: 7727-21-1
IUPAC Name: dipotassium [(sulfonatoperoxy)sulfonyl]oxidanide
Molecular Formula: K2O8S2
InChI Key: USHAGKDGDHPEEY-UHFFFAOYSA-L
SMILES: [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O
Molecular Weight (g/mol): 270.31
Synonym: potassium persulfate

Linear Formula: K2S2O8
CAS Number: 7727-21-1
Molecular Weight: 270.32
EC Number: 231-781-8
MDL number: MFCD00011386
UNSPSC Code: 12352302
PubChem Substance ID: 329752184
NACRES: NA.21
Assay: ≥99.0%
Grade: ACS reagent
Form: powder or crystals

Chemical formula: K2S2O8
Molar mass: 270.322 g/mol
Appearance: white powder
Odor: odorless
Density: 2.477 g/cm³
Melting point: < 100 °C (212 °F; 373 K) (decomposes)
Solubility in water: 1.75 g/100 mL (0 °C), 4.49 g/100 mL (20 °C)
Solubility: insoluble in alcohol
Refractive index (nD): 1.467
Structure: Crystal structure triclinic

Titration: Iodometric ≥99.0 %
Chloride (Cl): ≤120 ppm
Heavy metals (as Pb): ≤50 ppm
Iron (Fe): ≤20 ppm
Manganese (Mn): ≤5 ppm
Appearance (Form): Crystalline powder
Appearance (Color): White

CBNumber: CB6854294
Molecular Formula: K2O8S2
Molecular Weight: 270.32
MDL Number: MFCD03457781
MOL File: 7727-21-1.mol

Melting point: 1067 °C
Boiling point: 1689 °C
Density: 2.47
Bulk density: 1150 kg/m³
Vapor density: 9.3 (vs air)
Vapor pressure: 0 Pa at 25℃
Storage temp.: Store at +5°C to +30°C.
Solubility: H2O: 0.5 M at 20 °C, clear, colorless
Form: Solid
Specific Gravity: 2.477
Color: White
pH: 3.2 (50 g/l, H2O, 20℃)

Odor: Odorless
pH Range: 2.5 - 4.5
Water Solubility: 5 g/100 mL (20 ºC)
Merck: 14,7656
Exposure limits: ACGIH: TWA 0.1 mg/m³
Stability: Stable.
InChIKey: USHAGKDGDHPEEY-UHFFFAOYSA-L
LogP: -1 at 20℃
CAS DataBase Reference: 7727-21-1 (CAS DataBase Reference)
Substances Added to Food (formerly EAFUS): POTASSIUM PERSULFATE
FDA 21 CFR: 172.210; 175.105; 175.210; 176.170; 177.2600

EWG's Food Scores: 3-6
FDA UNII: 6B86K0MCZC
NCI Dictionary of Cancer Terms: KPS
EPA Substance Registry System: Potassium persulfate (7727-21-1)
Cosmetics Info: Potassium Persulfate
UNSPSC Code: 12352302
NACRES: NA.23
Appearance: White crystalline or powder
Odor: Odorless
Density: ~2.477 g/cm³ at 20 °C

Solubility in Water:
~1.75 g/100 mL at 0 °C
~4.5–5 g/100 mL at 20 °C
Solubility in Alcohol: Insoluble in alcohol
Melting Point: Decomposes at ~100 °C; not a true melting point
Refractive Index: ~1.467
pH (aqueous):
~3.2 at 20 °C (50 g/L)
Approx. 4 for a 10 g/L solution

pH Range: 2.5 - 4.5
Water Solubility: 5 g/100 mL (20 ºC)
Merck: 14,7656
Exposure limits: ACGIH: TWA 0.1 mg/m³
Stability: Stable.
Strong oxidizer.
InChIKey: USHAGKDGDHPEEY-UHFFFAOYSA-L
LogP: -1 at 20℃
CAS DataBase Reference: 7727-21-1 (CAS DataBase Reference)
EPA Substance Registry System: Potassium persulfate (7727-21-1)
CAS: 7727-21-1

EINECS: 231-781-8
InChI: InChI=1/2K.H2O8S2/c;;1-7-10(5,6)8-9(2,3)4/h;;1H,(H,2,3,4)/q2*+1;/p-2
Molecular Formula: K2O8S2
Molar Mass: 270.32
Density: 2.47
Melting Point: 1067 °C
Boiling Point: 1689 °C
Water Solubility: 5 g/100 mL (20 ºC)
Solubility: H2O: 0.5 M at 20 °C, clear, colorless
Vapor Pressure: 0 Pa at 25℃

Vapor Density: 9.3 (vs air)
Appearance: Solid
Specific Gravity: 2.477
Color: White
Odor: Odorless
Exposure Limit: ACGIH: TWA 0.1 mg/m³
Merck: 14,7656
pH: 3.2 (50 g/l, H2O, 20℃)
Storage Condition: Store at +5°C to +30°C.
Stability: Stable.

FIRST AID MEASURES of POTASSIUM PERSULFATE:
-Description of first-aid measures:
*General advice:
First aiders need to protect themselves.
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
Call in physician.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with water/ shower.
Consult a physician.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed:
No data available

ACCIDENTAL RELEASE MEASURES of POTASSIUM PERSULFATE:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Take up carefully.
Dispose of properly.

FIRE FIGHTING MEASURES of POTASSIUM PERSULFATE:
-Extinguishing media:
*Suitable extinguishing media:
Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of POTASSIUM PERSULFATE:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Skin protection:
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 480 min
Splash contact:
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 480 min
*Body Protection:
protective clothing
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of POTASSIUM PERSULFATE:
-Precautions for safe handling:
*Advice on safe handling:
Work under hood.
*Hygiene measures:
Immediately change contaminated clothing.
Wash hands and face after working with substance.
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Keep locked up or in an area accessible only to qualified or authorized persons.

STABILITY and REACTIVITY of POTASSIUM PERSULFATE:
-Reactivity:
No data available
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature) .
-Conditions to avoid:
no information available
-Incompatible materials:
No data available