dipotassium O-[(sulfonatoperoxy)sulfonyl]oxidanidolate

• ChemBase ID: 129075
• Molecular Formular: K2O8S2
• Molecular Mass: 270.3218
• Monoisotopic Mass: 269.83087232
• SMILES: [O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
• Canonical SMILES: [O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
• InChI: 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
• InChIKey: USHAGKDGDHPEEY-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: dipotassium O-[(sulfonatoperoxy)sulfonyl]oxidanidolate
• IUPAC Traditional name: dipotassium peroxydisulfate
• Synonyms: potassium peroxydisulfate; Anthion; potassium perdisulfate; Potassium persulfate; Potassium persulfate; Potassium peroxodisulfate; Potassium peroxodisulfate; Potassium persulfate; Potassium peroxydisulfate, ACS; Peroxydisulfuric acid dipotassium salt; Potassium peroxydisulfate; 过硫酸钾; 过二硫酸钾; 过二硫酸钾; 过硫酸钾; 过硫酸钾, ACS; 过氧化二硫酸钾

Database IDs

• CAS Number: 7727-21-1
• EC Number: 231-781-8
• MDL Number: MFCD00011386
• Merck Index: 147656
• PubChem SID: 24898675; 24863691; 24881889; 162223374; 24852943
• PubChem CID: 24412
• Wikipedia Title: Potassium_persulfate

CALCULATED PROPERTIES

• Acid pKa: -3.4752414
• H Acceptors: 6
• H Donor: 0
• LogD (pH = 5.5): -5.686493
• LogD (pH = 7.4): -5.6864934
• Log P: -0.9336958
• Molar Refractivity: 22.8694 cm^3
• Polarizability: 12.07569 Å^3
• Polar Surface Area: 132.86 Å^2
• Rotatable Bonds: 3
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 1.75 g/100 mL (0 °C) ; 5.29 g/100 ml (20 °C) in water; H2O: soluble0.1 M at 20 °C, clear, colorless; H2O: soluble0.5 M, clear, colorless; insoluble in alcohol
• Apperance: Crystalline; solid; white powder
• Melting Point: <100 °C decomp.; 100°C dec.
• Flash Point: Non-flammable
• Density: 2.477; 2.477 g/cm^3
• Refractive Index: 1.467
• Vapor Density: 9.3 (vs air)
• Odor: odorless
• pH: 2.5-4.5 (25 °C, 0.1 M in H2O)

Safety Information

• RTECS: SE0400000
• European Hazard Symbols: Harmful (Xn); Irritant (Xi); Oxidising (O); Oxidant (O); X; Harmful (Xn)
• UN Number: 1492; UN1492
• German water hazard class: 1
• Hazard Class: 5.1
• Packing Group: 3; III
• Risk Statements: 8-22-36/37/38-42/43; R8, R22, R36/37/38, R42/43
• Safety Statements: 22-24-26-37; S2, S22, S24, S26, S37
• TSCA Listed: 是
• EU Index: 016-061-00-1
• GHS Pictograms: GHS03; GHS07; GHS08
• GHS Signal Word: Danger
• NFPA704:
  

  0

  2

  1

  OX
• GHS Hazard statements: H272-H302-H315-H317-H319-H334-H335; H334-H315-H319-H317-H272-H302-H335
• GHS Precautionary statements: P220-P261-P280-P305 + P351 + P338-P342 + P311; P221-P210-P285-P305+P351+P338-P405-P501A
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 1492 5.1/PG 3

Product Information

• Purity: >99%; ≥95.0%; ≥98.0%; ≥98.0% (RT); ≥99% (manganometric); ≥99.0%; ≥99.0% (RT); 97%; 99.0% min; 99.99% (metals basis); 99.99% trace metals basis
• Grade: ACS reagent; for electrophoresis; JIS special grade; puriss.; puriss. p.a.; purum p.a.; SAJ first grade
• Suitability: suitable for catalyst of acrylamide polymerization; suitable for determination of nitrogen and phosphorus; suitable for determination of toxic metals
• Impurities: ≤0.0005% Phosphorus (P); ≤0.001% Cl compounds; ≤0.001% total nitrogen (N); ≤0.005% heavy metals (as Pb); ≤0.005% Insoluble matter; ≤0.005% insolubles; insoluble matter, passes filter test
• Cation Traces: Ag: ≤5 mg/kg; Al: ≤0.0005%; Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤0.0005%; Ca: ≤10 mg/kg; Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤5 mg/kg; Cu: ≤0.0005%; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Fe: ≤0.0005%; Fe: ≤20 mg/kg; Fe: ≤5 mg/kg; Fe: ≤5 ppm; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤0.001%; Li: ≤5 mg/kg; Mg: ≤0.01%; Mg: ≤100 mg/kg; Mn: ≤1 mg/kg; Mn: ≤2 ppm; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤0.05%; Na: ≤200 mg/kg; Na: ≤500 mg/kg; NH4+: ≤0.5%; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤0.001%; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sr: ≤5 mg/kg; Tl: ≤5 mg/kg; Zn: ≤0.0005%; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤0.001%; chloride (Cl-): ≤10 mg/kg; chloride (Cl-): ≤50 mg/kg
• Product Line: BioUltra
• abs.: absorption0.1M/268 nm, H2O cut-off
• Linear Formula: K2S2O8

DETAILS

Sigma Aldrich - 379824

Packaging
5, 25 g in poly bottle

Sigma Aldrich - 60487

Other Notes
Polymerization initiator. Immobilization of E. coli cells in a polyacrylamide gel lattice1,2; Can oxidize SH-groups of polyacrylamide-entrapped β-galactosidase3

Sigma Aldrich - 60489

Other Notes
Oxidizing agent for decomposition by fusion1,2

Sigma Aldrich - P5592

包装
100, 500 g in poly bottle

Sigma Aldrich - 216224

Packaging
100, 500 g in poly bottle
5 g in glass bottle

REFERENCES

• Useful oxidant: J. Org. Chem., 25, 1901 (1960); examples:
• Conversion of phenols to para-diphenols in alkaline solution (Elbs oxidation), and of arylamines to aminophenols (Boyland-Sims oxidation); review: Org. React., 35, 421 (1988). Phase-transfer conversion of acids to peracids in the presence of BTEAC or PEG: Synth. Commun., 18, 2123 (1988). In the presence of Na₂HPO₄ in acetone - dichloromethane, arylamines give nitro arenes: Tetrahedron Lett., 29, 4501 (1988). In the presence of Ni(II) salts, primary alkylamines can undergo dehydrogenation to nitriles: Bull. Chem. Soc. Jpn., 63, 301 (1990).
• See also Ammonium peroxydisulfate, A10533, and Sodium peroxydisulfate, 54100.