379824

Potassium persulfate

99.99% trace metals basis

• Synonym(s): Potassium peroxodisulfate
• 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: 24863691
• NACRES: NA.23

Properties

• vapor density: 9.3 (vs air)
• Assay: 99.99% trace metals basis
• form: solid
• reaction suitability: reagent type: oxidant
• impurities: ≤150.0 ppm Trace Metal Analysis
• SMILES string: [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O
• 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

Description

Application

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.

Safety Information

• Pictograms: GHS03,GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H272,H302,H315,H317,H319,H334,H335
• Precautionary Statements: P210 - P220 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 5.1B - Oxidizing hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves