Potassium persulfate

Base Information

• Chemical Name: Potassium persulfate
• CAS No.: 7727-21-1
• Deprecated CAS: 106015-10-5,1001387-46-7,1669428-35-6,1801437-22-8,2040915-35-1
• Molecular Formula: K2S2O8
• Molecular Weight: 270.33
• Hs Code.: HYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE White powder
• European Community (EC) Number: 231-781-8
• ICSC Number: 1133
• UN Number: 1492
• UNII: 6B86K0MCZC
• DSSTox Substance ID: DTXSID4029690
• Nikkaji Number: J43.953C
• Wikipedia: Potassium persulfate
• Wikidata: Q415226
• ChEMBL ID: CHEMBL3186858
• Mol file: 7727-21-1.mol

Synonyms:K2S2O8;potassium monopersulfate;potassium peroxodisulfate;potassium peroxydisulfate;potassium persulfate

Chemical Property of Potassium persulfate

Chemical Property:

• Appearance/Colour: colourless odourless crystals or white powder
• Vapor Pressure: 0Pa at 25℃
• Melting Point: 100 °C
• Boiling Point: 1689 °C
• Flash Point: Not combustible
• PSA: 149.62000
• Density: 2.47
• LogP: 0.01660
• Storage Temp.: Store at +5°C to +30°C.
• Solubility.: H2O: 0.5 M at 20 °C, clear, colorless
• Water Solubility.: 5 g/100 mL (20 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 8
• Rotatable Bond Count: 1
• Exact Mass: 269.8308723
• Heavy Atom Count: 12
• Complexity: 206
• Transport DOT Label: Oxidizer

Purity/Quality:

98% ^*data from raw suppliers

Potassium persulfate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): O,Xn
• Hazard Codes: O,Xn
• Statements: 8-22-36/37/38-42/43
• Safety Statements: 22-24-26-37

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Inorganic Oxidizing Agents
• Canonical SMILES: [O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.
• Effects of Short Term Exposure: The substance is irritating to the eyes, skin and respiratory tract. Inhalation of dust may cause asthma-like reactions.
• Effects of Long Term Exposure: Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. May cause a general allergic reaction, such as urticaria or shock.
• Uses: It can be used as gluten agent of wheat flour. It is mainly used as a disinfectant and fabric bleach. It can be used as industrial oxidant in dyes and inorganic salts. It can be used as emulsion polymerization initiators in synthetic rubber industry. It can be used as polymerization accelerator in synthetic resin. In addition, it can also be used in the steel, photographic industry and medicine. It can be used as analytical reagents, oxidants and plastic initiator, it can also be used in the film photofinishing. The above information is edited by the lookchem of Wang Xiaodong. 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 a powerful oxidant, commonly used to initiate polymerizations. Potassium Persulphate 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. It is also used as al laboratory oxidant and photography chemical. It 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.
• Production method: Potassium sulfate method Ammonium sulfate and sulfuric acid formulates to form liquid electrolyte, it is decontaminated by electrolysis, HSO4-can discharge and generate peroxydisulfate acidat in 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 It can be derived by replacement reaction with ammonium persulfate potassium sulfate, then it goes through cooling, separation, crystallization, drying.
• Description: Potassium persulfate, is composed of white crystals that are soluble in water, and it decomposes below 212°F (100°C). Potassium persulfate is a dangerous fire risk in contact with organic materials. It is a strong oxidizing agent and an irritant, with a four-digit UN identification number of 1492. The primary uses are in bleaching, as an oxidizing agent, as an antiseptic, as a polymerization promoter, and in the manufacture of pharmaceuticals.
• Physical properties: Colorless or white crystals; triclinic structure; density 2.477 g/cm3; stable in solid crystalline form; decomposes on heating, evolving oxygen; completely decomposes at about 100°C; sparingly soluble in cold water 1.75 g/100mL at 0°C; moderately soluble at ordinary temperature, 5.29 g/100 mL at 20°C;aqueous solution acidic and unstable, decomposing slowly at room temperature and more rapidly when the solution is warmed; insoluble in alcohol.