307750

Potassium disulfate

ReagentPlus^®, 99%

• Synonym(s): Potassium pyrosulfate
• Empirical Formula (Hill Notation): K₂S₂O₇
• CAS Number: 7790-62-7
• Molecular Weight: 254.32
• EC Number: 232-216-8
• MDL number: MFCD00011385
• UNSPSC Code: 12352302
• PubChem Substance ID: 24858622
• NACRES: NA.22
• Assay: 99%
• form: powder

Properties

• Quality Level: 100
• product line: ReagentPlus^®
• Assay: 99%
• form: powder
• density: 2.28 g/mL at 25 °C (lit.)
• SMILES string: [K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O
• InChI: 1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
• InChI key: KAQHZJVQFBJKCK-UHFFFAOYSA-L

Description

Application

Potassium disulfate (K₂S₂O₇) can be used:

• As a salt catalyst for the conversion of hemicellulose into reducing sugars such as xylose and galactose by mechanocatalysis .
• In the preparation of diacylbenzenes via Pd-catalyzed decarboxylative acylation of aromatic ketones with oxocarboxylic acids.
• As an oxidant for the preparation of monosubstituted triazoles from aryl azides and propargyl alcohol using Ag₂O as a catalyst.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H314,H331
• Precautionary Statements: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A
• Storage Class Code: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves