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Potassium peroxodisulfate_Molecular_structure_CAS_7727-21-1)
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Potassium peroxodisulfate

Catalog No. 60487 Name Sigma Aldrich
CAS Number 7727-21-1 Website http://www.sigmaaldrich.com
M. F. K2O8S2 Telephone 1-800-521-8956
M. W. 270.3218 Fax
Purity ≥99.0% (RT) Email
Storage Chembase ID: 129075

SYNONYMS

Title
过二硫酸钾
IUPAC name
dipotassium O-[(sulfonatoperoxy)sulfonyl]oxidanidolate
IUPAC Traditional name
dipotassium peroxydisulfate
Synonyms
Potassium persulfate
过硫酸钾

DATABASE IDS

CAS Number 7727-21-1
MDL Number MFCD00011386
EC Number 231-781-8

PROPERTIES

abs. absorption0.1M/268 nm, H2O cut-off
Antion Traces chloride (Cl-): ≤50 mg/kg
Cation Traces Al: ≤5 mg/kg
Cation Traces As: ≤0.1 mg/kg
Cation Traces Ba: ≤5 mg/kg
Cation Traces Bi: ≤5 mg/kg
Cation Traces Ca: ≤10 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces Li: ≤5 mg/kg
Cation Traces Mg: ≤100 mg/kg
Cation Traces Mn: ≤1 mg/kg
Cation Traces Mo: ≤5 mg/kg
Cation Traces Na: ≤200 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Sr: ≤5 mg/kg
Cation Traces Zn: ≤5 mg/kg
Impurities insoluble matter, passes filter test
Linear Formula K2S2O8
Product Line BioUltra
Purity ≥99.0% (RT)
pH 2.5-4.5 (25 °C, 0.1 M in H2O)
Solubility H2O: soluble0.1 M at 20 °C, clear, colorless
GHS Pictograms GHS03
GHS Pictograms GHS07
GHS Pictograms GHS08
GHS Signal Word Danger
GHS Hazard statements H272-H302-H315-H317-H319-H334-H335
European Hazard Symbols Oxidising Oxidising (O)
European Hazard Symbols Harmful Harmful (Xn)
MSDS Link Download
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
GHS Precautionary statements P220-P261-P280-P305 + P351 + P338-P342 + P311
RID/ADR UN 1492 5.1/PG 3
Risk Statements 8-22-36/37/38-42/43
RTECS SE0400000
Safety Statements 22-24-26-37
Hazard Class 5.1
UN Number 1492
Packing Group 3
German water hazard class 1

DETAILS

Description (English)
Other Notes
Polymerization initiator. Immobilization of E. coli cells in a polyacrylamide gel lattice1,2; Can oxidize SH-groups of polyacrylamide-entrapped β-galactosidase3
Description (简体中文)
Other Notes
聚合引发剂。大肠杆菌细胞在聚丙烯酰胺凝胶晶格中的固定1,2;可氧化包埋聚丙烯酰胺的 β-半乳糖苷酶的巯基3

REFERENCES