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POTASSIUM PEROXYDISULFATE

CAS NUMBER: 7727-21-1

EC NUMBER: 231-781-8

MOLECULAR FORMULA: K2O8S2

MOLECULAR WEIGHT: 270.33


DESCRIPTION:

Potassium peroxydisulfate appears as a white crystalline solid. 
Potassium persulfate is the inorganic compound with the formula K2S2O8. 
Potassium peroxydisulfate is a white solid that is sparingly soluble in cold water, but dissolves better in warm water. 
Potassium peroxydisulfate is a powerful oxidant, commonly used to initiate polymerizations.
Potassium peroxodisulfate is also known as potassium persulfate (K2S2O8). 

Potassium peroxydisulfate is commonly used as an oxidizing agent and polymerization initiator in organic synthesis.
Potassium peroxydisulfate is used in bleaching fabrics, soaps; in photography to remove last traces of thiosulfate from plates and paper; as an oxidizing agent in analytical chemistry.
Potassium peroxydisulfate is a chemical compound used as an oxidizing agent, with the formula K2S2O8.
When Potassium peroxydisulfate is heated in a 50% aqueous solution of sulfuric acid, hydrogen peroxide results, which, due to the high temperature, distills from the solution. 

The H2O2 obtained this way has a concentration of 40-60%. 
This method was previously used in the manufacturing of hydrogen peroxide on industrial scale before being replaced by the quinone process.
Potassium peroxydisulfate is a white crystalline solid, poorly soluble in water. 
Potassium peroxydisulfate decomposes if heated to temperatures over 125°C. 
Potassium peroxydisulfate has a density of 2.477 g/cm3.
Potassium Peroxydisulfate Powder (CAS 7727-21-1) is a kind of white powder with no odor. 

Potassium peroxydisulfate is used as an initiator for emulsion polymerization reactions, in the preparation of acrylic, vinyl, styrene, neoprene, styrene-butadiene and other resins. 
Potassium peroxydisulfate is also used in depolymerization in modification of starch, as a booster in hair bleaching formulations in cosmetics and as a gel breaker in the oil and gas industry.
Potassium peroxydisulfate is the inorganic compound with the formula K2S2O8. 
Potassium peroxydisulfate is a white solid that is sparingly soluble in cold water, but dissolves better in warm water. 
Potassium peroxydisulfate is a powerful oxidant, commonly used to initiate polymerizations.
Potassium peroxydisulfate is also known as potassium peroxydisulfate, molecular weight is 270.32, decomposition temperature is 50-60℃ 

Potassium peroxydisulfate is white, odorless crystal.
Potassium peroxydisulfate is soluble in water, insoluble in alcohol.
Potassium peroxydisulfate has strong oxidizing.
Potassium peroxydisulfate is commonly used as bleaching agents, oxidizing agents.

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

 

APPLICATION:

Potassium peroxydisulfate can be used as:      

-A polymerization initiator in the synthesis of polyacrylamide via radical polymerization of acrylamide.      
-An oxidizing agent in the photochemical oxidation of atrazine aqueous solution.
-Printed circuit board (etching)
-Synthetic rubber (polymerization)
-Synthetic resin (polymerization)

 

USES:

Potassium peroxydisulfate is mainly used as initiator and strong oxidizing agents.
Potassium peroxydisulfate 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 peroxydisulfate is used as desizing agent and bleach activator.
Potassium peroxydisulfate is used for oxidative degradation of harmful substances in pool and closed circular loop in water.

Potassium peroxydisulfate can be applied in the production of starch modifier and applied in the production of adhesive and coating agent.
Potassium peroxydisulfate can be applied in the branched-chain oxidation, alcohol and aromatic hydroxy oxidation.
Potassium peroxydisulfate is one of the basic constituent of hair dyes, it plays the role of decolorization.
Potassium peroxydisulfate can be used as gluten agent of wheat flour.
Potassium peroxydisulfate is mainly used as a disinfectant and fabric bleach. 

Potassium peroxydisulfate can be used as industrial oxidant in dyes and inorganic salts. 
Potassium peroxydisulfate can be used as emulsion polymerization initiators in synthetic rubber industry. 
Potassium peroxydisulfate can be used as polymerization accelerator in synthetic resin. 
In addition, Potassium peroxydisulfate can also be used in the steel, photographic industry and medicine.
Potassium peroxydisulfate can be used as analytical reagents, oxidants and plastic initiator, it can also be used in the film photofinishing.

Potassium peroxydisulfate is a powerful oxidant, commonly used to initiate polymerizations. 
Potassium peroxydisulfate 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 peroxydisulfate is also used as al laboratory oxidant and photography chemical. 
Potassium peroxydisulfate is a food additive.

 

PROPERTIES:

-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 Ų    
-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

 

STRUCTURE:

The sodium and potassium salts are very similar. 
In the potasium 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:

Potassium peroxydisulfate can be prepared by electrolysis of a cold solution potassium bisulfate in sulfuric acid at a high current density.

2 KHSO4 → K2S2O8 + H2

Potassium peroxydisulfate can also be prepared by adding potassium bisulfate (KHSO4) to a solution of the more soluble salt ammonium peroxydisulfate (NH4)2S2O8. 
In principle, Potassium peroxydisulfate can be prepared by chemical oxidation of potassium sulfate using fluorine. 

 

USES:

Potassium peroxydisulfate is used to initiate polymerization of various alkenes leading to commercially important polymers such as styrene-butadiene rubber and polytetrafluoroethylene and related materials. 
Potassium peroxydisulfate is used in organic chemistry as an oxidizing agent, for instance in the persulfate oxidation of phenols and the Boyland–Sims oxidation of anilines.
As a strong yet stable bleaching agent, Potassium peroxydisulfate also finds use in various hair bleaches and lighteners. 
Such brief and non-continuous use is normally hazard free, however prolonged contact can cause skin irritation.
Potassium peroxydisulfate 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 peroxydisulfate catalytic system is used in the direct trifluoromethylthiolation of unactivated C(sp3)-H bonds under mild conditions. 
Usage of Potassium peroxydisulfate in this process plays an important role in the activation of the C-H bond and the oxidation of AgSCF3.
Potassium peroxydisulfate is used for the thiocyanation of 2H-indazoles using ammonium thiocyanate as a thiocyanating agent.
Potassium peroxydisulfate is used as an oxidizing agent in organic synthesis. 

Potassium peroxydisulfate is involved in Elbs persulfate oxidation of phenols and the Boyland-Sims oxidation of anilines. 
Upon solution, Potassium peroxydisulfate gives radicals and is used to initiate polymerization reactions to prepare styrene-butadiene rubber and polytetrafluoroethylene. 
Potassium peroxydisulfate is used as bleaching agent in various hair bleaches, ion exchange agents, plating agents and surface treating agents.
Potassium peroxydisulfate decomposes completely at 100 oC. 
Potassium peroxydisulfate is slightly soluble in water. 
Potassium peroxydisulfate is not flammable. 

Potassium peroxydisulfate should be stored in closed, cool and dry places. 
Potassium peroxydisulfate should be protected from heat and moisture. 
Potassium peroxydisulfate decomposes on ignition and toxic gas is released. Eyes, skin and clothing should be protected when working with Potassium Persulfate. 
Potassium peroxydisulfate is not harmful to health as crystal and solution when studied carefully.
In the polymerization of acrylonitrile, generally in the production of polyacrylonitrile fiber together with alkali sulfides, in the polymerization of various monomers; as an oxidant in the textile industry; in the oxidation of sulfur dyes; in metal, photography, cosmetics industries; in the production of various chemicals; purification of ammonium sulfate; as an antiseptic, It is used in soap production and medicine production.

Potassium peroxydisulfate is the initiator of latex or solution polymerization of acrylic monomers, vinyl acetate, vinyl chloride and other product, but also the initiator of styrene, acrylonitrile, butadiene and similar emulsion for copolymerization.
Potassium peroxydisulfate is mainly used as initiator and strong oxidizing agents
Potassium peroxydisulfate is used as a desizing agent and bleach activator.
Potassium peroxydisulfate is used for oxidative degradation of harmful substances in the pool and closed circular cycle in the water. 
Potassium peroxydisulfate can be applied in the production of starch modifier and applied in the production of adhesive and coating agent.

Potassium peroxydisulfate is used in organic chemistry as an oxidizing agent. 
Potassium peroxydisulfate is used in active pharma manufacturing, hair bleaching, wool bleaching, chemical synthesis and accelerated curing of low formaldehyde adhesives. 
Potassium peroxydisulfate is also used in depolymerization in the modification of starch, in cosmetics and as a gel breaker in the oil and gas industry.
Potassium peroxydisulfate is used to initiate polymerization of many alkenes leading to polymers such as styrene-butadiene rubber and polytetrafluoroethylene and related materials. 

Potassium peroxydisulfate is environmentally friendly, non-halogenated compound which can be used to oxidize the wet strength resin for reprocessing of broken, or off-spec paper to be recycled.
Potassium peroxydisulfate is a powerful oxidant, commonly used to initiate polymerizations. 
Potassium peroxydisulfate 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 peroxydisulfate is also used as al laboratory oxidant and photography chemical. 
Potassium peroxydisulfate is a food additive.

 

PRODUCT INFORMATION:

-CAS number: 7727-21-1
-EC index number: 016-061-00-1
-EC number: 231-781-8
-Hill Formula: K₂O₈S₂
-Molar Mass: 270.33 g/mol

 

PHYSICAL AND CHEMICAL INFORMATION:

-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

 

STORAGE:

Store at +2°C to +30°C.

 

SPECIFICATION:

-Color: White
-Melting Point: 100°C (dec.), 100°C (decomposition)
-Linear Formula: K2S2O8
-UN Number: UN1492
-Merck Index: 14,7656
-Solubility Information: It is highly soluble in water. It is insoluble in alcohol.
-Formula Weight: 270.31
-Physical Form: Crystalline
-Percent Purity: ≥99.0%
-Odor: Odorless
-Density: 2.477 g/mL

 

TECHNICAL INFORMATION:

-Appearance: Crystalline powder
-Physical State: Solid
-Solubility: Soluble in water (50 mg/ml at 20° C). Insoluble in alcohol.
-Storage: Desiccate at room temperature
-Melting Point: 100° C (dec.)
-Density: 2.48 g/cm3 at 20° C

 

SYNONYM:

Potassium peroxydisulfate
Potassium peroxodisulfate
Potassium peroxydisulphate
Dipotassium peroxydisulfate
Dipotassium persulfate
potassium persulphate
Peroxydisulfuric acid, dipotassium salt
dipotassium;sulfonatooxy sulfate
MFCD00011386
6B86K0MCZC
Dipotassium peroxodisulphate
Caswell No. 700
HSDB 2638
EINECS 231-781-8
UN1492
UNII-6B86K0MCZC
EPA Pesticide Chemical Code 063602
Virkon S
potasium persulfate
potassium persuifate
Peroxydisulfuric acid (((HO)S(O)2)2O2) , dipotassium salt
potassium monopersulphate
potassium peroxidisulfate
DSSTox_CID_9690
EC 231-781-8
DSSTox_RID_78809
DSSTox_GSID_29690
DIPOTASSIUM PERSULPHATE
CHEMBL3186858
DTXSID4029690
POTASSIUM PERSULFATE
DIPOTASSIUM PEROXYDISULPHATE
dipotassium dioxidan-2-idesulfonate
POTASSIUM PERSULFATE 
POTASSIUM PERSULFATE 
POTASSIUM PERSULFATE 
Tox21_200798
AKOS015950646
NSC 326763
Potassium persulfate, ACS Reagent Grade
NCGC00258352-01
BP-13445
CAS-7727-21-1
FT-0689072
Potassium peroxydisulfate, low nitrogen, ACS
Potassium persulfate 
dipotassium [(sulfonatoperoxy)sulfonyl]oxidanide
Potassium persulfate, Trace metals grade 99.99%
Q415226


 

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