Potassium persulfate
SIAL/906735 - free-flowing, Redi-Dri™, ACS reagent, ≥99.0%
Synonym: Potassium peroxodisulfate
CAS Number: 7727-21-1
Empirical Formula (Hill Notation): K2O8S2
Molecular Weight: 270.32
MDL Number: MFCD00011386
Linear Formula: K2S2O8
Product Type: Chemical
assay | ≥99.0% |
cation traces | Fe: ≤5 ppm |
heavy metals: ≤0.001% | |
Mn: ≤2 ppm | |
form | powder |
grade | ACS reagent |
InChI | 1S/2K.H2O8S2/c;;1-9(2,3)7 |
InChI key | USHAGKDGDHPEEY-UHFFFAOYSA |
pH | 2.5-4.5 (25 °C, 27 g/L) |
product line | Redi-Dri™ |
SMILES string | [K+].[K+].[O-]S(=O)(=O)OO |
vapor density | 9.3 (vs air) |
Application: | Redi-Dri™ ![]() ![]() |
Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
Symbol | ![]() ![]() ![]() |
Signal word | Danger |
Hazard statements | H272 - H302 - H315 - H317 - H319 - H334 - H335 |
Precautionary statements | P210 - P220 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.0% |
UNSPSC | 12352120 |