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Potassium peroxydisulfate (potassium persulfate) is used as an oxidizing agent in organic synthesis.
Potassium peroxydisulfate (potassium persulfate) is involved in the Elbs persulfate oxidation of phenols and the Boyland-Sims oxidation of anilines.
In solution, Potassium peroxydisulfate (potassium persulfate) gives radicals and is used to initiate polymerization reactions to prepare styrene-butadiene rubber and polytetrafluoroethylene.
CAS: 7727-21-1
MF: K2O8S2
MW: 270.32
EINECS: 231-781-8
Potassium peroxydisulfate (potassium persulfate) is used as a bleaching agent in various hair bleaches, as an ion exchange agent, a plating agent and a surface treating agent.
Potassium peroxydisulfate (potassium persulfate) is the inorganic compound with the formula K2S2O8.
Also known as Potassium peroxydisulfate (potassium persulfate) or KPS, it is a white solid that is highly soluble in water.
Potassium peroxydisulfate (potassium persulfate) is a powerful oxidant, commonly used to initiate polymerizations.
Potassium peroxydisulfate (potassium persulfate), also known as high potassium sulfate, molecular weight: 270.32, decomposition temperature: 50-60 ℃, is a white, tasteless Crystal, soluble in water, insoluble in ethanol, with strong oxidation, commonly used as bleach, oxidant, Potassium peroxydisulfate (potassium persulfate) can also be used as a polymerization initiator, which hardly absorbs moisture, has good stability at room temperature, is convenient for storage, and has the advantages of convenience and safety.
Applications include polymerization initiators, circuit board cleaning and etching, copper and aluminum surface activation, starch modification, low temperature bleaching and Desizing of pulp and fabrics, purification of circulating water systems, oxidative degradation of harmful gases, low formaldehyde adhesive adhesion acceleration, ethanol and aromatic hydrocarbon oxidation, disinfectant, hair dye decolorization.
Potassium peroxydisulfate (potassium persulfate) is a non-flammable product, but it has a combustion-supporting effect due to the release of oxygen, the storage environment must be dry, clean and well ventilated.
Pay attention to moisture and rain, rain is not suitable for transport.
Should be kept away from fires, heat sources and direct sunlight.
Keep the outer package sealed and the label intact and clear.
Potassium peroxydisulfate (potassium persulfate) should be stored separately from flammable or combustible materials, organic matter, rust, a small amount of metal, and other reducing substances, and should not be mixed to prevent the decomposition and explosion of Potassium peroxydisulfate (potassium persulfate).
Potassium peroxydisulfate (potassium persulfate) is used to initiate polymeriziation 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 peroxydisulfate (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 it 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 (potassium persulfate) has been used as an improving agent for flour with the E number E922, although Potassium peroxydisulfate (potassium persulfate) is no longer approved for this use within the EU.
Potassium peroxydisulfate (potassium persulfate) Chemical Properties
Melting point: 1067 °C
Boiling point: 1689 °C
Density: 2.47
Vapor density: 9.3 (vs air)
Vapor pressure: 0Pa 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℃
CAS DataBase Reference: 7727-21-1(CAS DataBase Reference)
EPA Substance Registry System: Potassium peroxydisulfate (potassium persulfate) (7727-21-1)
Applications
Potassium peroxydisulfate (potassium persulfate) is used as an oxidizing agent in organic synthesis.
Potassium peroxydisulfate (potassium persulfate) is involved in the Elbs persulfate oxidation of phenols and the Boyland-Sims oxidation of anilines.
In solution, Potassium peroxydisulfate (potassium persulfate) gives radicals and is used to initiate polymerization reactions to prepare styrene-butadiene rubber and polytetrafluoroethylene.
Potassium peroxydisulfate (potassium persulfate) is used as a bleaching agent in various hair bleaches, as an ion exchange agent, a plating agent and a surface treating agent.
Potassium peroxydisulfate (potassium persulfate) is used as an analytical reagent for the determination of manganese content in steel analysis; Potassium peroxydisulfate (potassium persulfate) is also used as a disinfectant, a fabric bleaching agent, a sodium thiosulfate remover and a deodorizing agent; Potassium peroxydisulfate (potassium persulfate) is used as an oxidant for dyes and inorganic salts in chemical reactions; it is used as an initiator for elastomer in synthetic rubber; Potassium peroxydisulfate (potassium persulfate) is used as an accelerator for polyvinyl chloride emulsion polymerization in the production of synthetic resin; And Potassium peroxydisulfate (potassium persulfate) is also a raw material for the preparation of hydrogen peroxide.
Potassium peroxydisulfate (potassium persulfate) is mainly used for initiator and strong oxidant initiator: Potassium persulfate is latex or acrylic monomer polymerization liquid, vinyl acetate, the initiator of vinyl chloride and other products is also the initiator of the copolymerization of styrene, acrylonitrile, butadiene and Other colloids.
Strong oxidants:
(1) used as Desizing agent and bleach activator.
(2) for the oxidation and degradation of harmful substances in water pool and closed cycle treatment.
(3) is the production of starch regulator, and used in the production of adhesives and coatings. (4) for branched-chain oxidation, ethanol and aromatic hydroxyl oxidation.
(5) is one of the basic components of the hair dye, the role of decolorization.
Potassium peroxydisulfate (potassium persulfate) can be used as gluten agent of wheat flour.
Potassium peroxydisulfate (potassium persulfate) is mainly used as a disinfectant and fabric bleach.
Potassium peroxydisulfate (potassium persulfate) can be used as industrial oxidant in dyes and inorganic salts.
Potassium peroxydisulfate (potassium persulfate) can be used as emulsion polymerization initiators in synthetic rubber industry.
Potassium peroxydisulfate (potassium persulfate) can be used as polymerization accelerator in synthetic resin.
In addition, Potassium peroxydisulfate (potassium persulfate) can also be used in the steel, photographic industry and medicine.
Potassium peroxydisulfate (potassium persulfate) can be used as analytical reagents, oxidants and plastic initiator, it can also be used in the film photofinishing.
Production Method
The Potassium peroxydisulfate (potassium persulfate) method uses ammonium sulfate and sulfuric acid to prepare an electrolyte solution to remove impurities and then conduct electrolysis.
HSO4-generates persulfate by discharge at the anode, and then reacts with ammonium sulfate to generate ammonium persulfate.
Then, Potassium peroxydisulfate (potassium persulfate) is added for double decomposition reaction, and potassium persulfate is obtained by cooling, separation, crystallization and drying.
Potassium peroxydisulfate (potassium persulfate)'s anode reaction: 2HSO4-2e → H2S2O8 cathode reaction: 2h2e → H2 (NH4)2SO4 H2S2O8 →(NH4)2S2O8 H2SO4(NH4)2S2O8 K2SO4 H2SO4 → K2S2O8 2NH4HSO4
obtained by double decomposition reaction of ammonium persulfate and Potassium peroxydisulfate (potassium persulfate), followed by cooling, separation, crystallization and drying.
Reactivity Profile
Potassium peroxydisulfate (potassium persulfate) is an oxidizing agent.
Noncombustible but accelerates the burning of combustible material.
Potassium peroxydisulfate (potassium persulfate) plus a little potassium hydroxide and water released sufficient heat and oxygen to ignite a polythene (polyethylene) liner in a container.
Health Hazard
Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death.
Fire may produce irritating, corrosive and/or toxic gases.
Runoff from fire control or dilution water may cause pollution.
Fire Hazard
These substances will accelerate burning when involved in a fire.
Some may decompose explosively when heated or involved in a fire.
May explode from heat or contamination.
Some will react explosively with hydrocarbons (fuels).
May ignite combustibles (wood, paper, oil, clothing, etc.).
Containers may explode when heated. Runoff may create fire or explosion hazard.
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
Virkon S
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]
DIPOTASSIUM PEROXYDISULPHATE
dipotassium dioxidan-2-idesulfonate
POTASSIUM PERSULFATE [HSDB]
POTASSIUM PERSULFATE [INCI]
POTASSIUM PERSULFATE [VANDF]
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 [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)
