Dikaliumperoxodisulfat
K2S2O8 · KPS · dipotassium peroxodisulfate · POTASSIUM PEROXODISULFATE · POTASSIUM PERSULPHATE · POTASSIUM PEROXYDISULFATE · PEROXYDISULFURIC ACID · Virkon S
Identifikatoren & physikalische Daten
| CAS No. | 7727-21-1 |
|---|---|
| Summenformel | K2O8S2 |
| Durchschnittliche Molmasse | 270,33 g/mol |
| Monoisotopische Masse | 269,83087232 g/mol |
| SMILES | O=S(=O)([O-])OOS(=O)(=O)[O-].[K+].[K+] |
| InChIKey | USHAGKDGDHPEEY-UHFFFAOYSA-L |
| PubChem CID | 24412 |
| ChEMBL | CHEMBL3186858 |
| EC No. | 231-781-8 |
| DTXSID | DTXSID4029690 |
| Lokaler Name | Dikaliumperoxodisulfat |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 150 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 8 |
| Frei drehbare Bindungen | 1 |
| Schwere Atome | 12 |
| Formalladung | 0 |
| Komplexität | 206 |
| Stoffklassen | Other Classes -> Inorganic Oxidizing AgentsReactive agents - 1st degree |
| Kosmetika | Cosmetic ingredients (Potassium Persulfate) -> CIR (Cosmetic Ingredient Review)Oxidising |
| pH | AQUEOUS SOLN IS ACIDIC3.2 (50g/l, H2O, 20℃) |
| Geruch | ODORLESS |
| Lebensmittelzusatzstoffe | SURFACE-ACTIVE AGENT -> FDA Substance added to food |
| Dichte | 2.4772.5 g/cm³2.477 @25 °C |
| Color/Form | COLORLESS, TRICLINIC CRYSTALSWHITE CRYSTALS |
| Löslichkeit | 1.75 G IN 100 CC OF WATER @ 0 °C5.2 G IN 100 CC OF HOT WATER @ 20 °CINSOL IN ALCOHOLSolubility in water, g/100ml at 20 °C: 5.2H2O: 0.5 M at 20 °C, clear, colorless5 g/100 mL (20 ºC) |
| Decomposition | Dangerous when heated to decomp, emits highly toxic fumes of /sulfur oxides/. |
| Dampfdichte | 2.489.3 (vs air) |
| Food Contact Substances | FCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR |
| Brechungsindex | INDICES OF REFRACTION: 1.461, 1.467, 1.566 |
| Schmelzpunkt | 1067 °C |
| Siedepunkt | 1689 °C |
| Dampfdruck | 0Pa at 25℃ |
| Lagerbedingungen | Store at +5°C to +30°C. |
| Aggregatzustand | Solid |
| Wichte | 2.477 |
| Farbe | White |
| Geruch | Odorless |
| Merck | 14,7656 |
| Stabilität | Stable. Strong oxidizer. Incompatible with strong reducing agents, organic materials, combustible materials. |
| Kosmetik-Inhaltsstoffe Funktionen | OXIDISING |
| InChI | 1S/2K.H2O8S2/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6)/q2*+1/p-2 |
| InChIKey | USHAGKDGDHPEEY-UHFFFAOYSA-L |
| SMILES | [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O |
| LogP (Verteilungskoeffizient) | -1 at 20℃ |
| CAS Datenbank | 7727-21-1(CAS DataBase Reference) |
| EPA chemische Informationen | Potassium persulfate (7727-21-1) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH272: May intensify fireoxidizer [Danger Oxidizing liquidsOxidizing solids]P210, P220, P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P370+P378, P403, P403+P233, P405, and P501 (click each P-code to see the statement)H272 (100%): May intensify fire |
|---|---|
| Regulatorische Informationen | Chemical: Peroxydisulfuric acid ([(HO)S(O)2]2O2), potassium salt (1:2)Hazard Traits - Respiratory ToxicityPeroxydisulfuric acid ([(HO)S(O)2]2O2), potassium salt (1:2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Peroxydisulfuric acid ([(HO)S(O)2]2O2), potassium salt (1:2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 20-10-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14185Peroxydisulfuric acid, dipotassium salt: HSNO Approval: HSR001343 Approved with controlsThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| Weitere Sicherheitsinformationen | PEC / SN / Other assessments - Ammonium, potassium and sodium persulfate in hairdressing: Health |
| DOT-Kennzeichnung | Oxidizer |
| Brandgefahren | Excerpt from ERG Guide 140 [Oxidizers]:CAUTION: Ammonium nitrate products may explode if involved in fire or contaminated with hydrocarbons (fuels), organic matter, other contaminants or when hot molten and contained. Treat as an explosive (GUIDE 112).Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with combustible substances. |
| Brandpotenzial | POTASSIUM PERSULFATE PLUS A LITTLE POTASSIUM HYDROXIDE & WATER IGNITED POLYTHENE (POLYETHYLENE) LINER OF CONTAINER BY SIMULTANEOUS RELEASE OF HEAT & OXYGEN. |
Anwendungen & Verwendung
Beschreibung
Potassium persulfate, is composed of white crystals that are soluble in water, and it decomposes below 212°F (100°C). Potassium persulfate is a dangerous fire risk in contact with organic materials. It is a strong oxidizing agent and an irritant, with a four-digit UN identification number of 1492. The primary uses are in bleaching, as an oxidizing agent, as an antiseptic, as a polymerization promoter, and in the manufacture of pharmaceuticals.
Verwenden
Potassium persulfateis a powerful oxidant, commonly used to initiate polymerizations. Potassium Persulphate used for bleaching and textile desizing, as an oxidizing agent and antiseptic, in purification of ammonium sulfate, and in the manufacture of soap and pharmaceuticals. It is also used as al laboratory oxidant and photography chemical. It is a food additive.
Herstellung & Synthese
synthetische
Potassium persulfate can be prepared by electrolysis of a mixture of potassium sulfate and potassium hydrogen sulfate at a high current density:2KHSO4→K2S2O8+ H2Also, the compound can be prepared by adding potassium hydrogen sulfate,KHSOto an electrolyzed solution of ammonium hydrogen sulfate, NH4HSO4.