Potassium disulfate
ALDRICH/307750 - ReagentPlus®, 99%
Synonym: Potassium pyrosulfate
CAS Number: 7790-62-7
Empirical Formula (Hill Notation): K2S2O7
Molecular Weight: 254.32
EC Number: 232-216-8
MDL Number: MFCD00011385
Linear Formula: K2S2O7
Product Type: Chemical
| assay | 99% |
| density | 2.28 g/mL at 25 °C (lit.) |
| form | powder |
| grade | reagent grade |
| InChI | 1S/2K.H2O7S2/c;;1-8(2,3)7 |
| InChI key | KAQHZJVQFBJKCK-UHFFFAOYSA |
| product line | ReagentPlus® |
| Quality Level | 100 ![]() |
| SMILES string | [K+].[K+].[O-]S(=O)(=O)OS |
| solubility | water: soluble |
| 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 |
| Packaging: | 25, 500 g in poly bottle |
| Symbol | ![]() GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H314 - H330 |
| Precautionary statements | P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2923 6.1(8) / PGI |
| WGK Germany | WGK 3 |
| Purity | 99% |
| Density | 2.28 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |



