Kaliumperiodat
POTASSIUM METAPERIODATE · ACS， 99.8%-100.3% · POTASSIUM PERIODATE · Potassium ｍ-Perioda · POTASSIUM M-PERIODATE · PotassiumPeriodateKIO4 · Potassium periodate 99% · PotassiumMetaperiodateGr
Identifikatoren & physikalische Daten
| CAS No. | 7790-21-8 |
|---|---|
| Summenformel | I.K.O4 |
| Durchschnittliche Molmasse | 230 g/mol |
| Monoisotopische Masse | 229,84783816 g/mol |
| SMILES | [K+].[O-][I+3]([O-])([O-])[O-] |
| InChIKey | WZIUPTUZHCSBAA-UHFFFAOYSA-N |
| PubChem CID | 516896 |
| EC No. | 232-196-0 |
| DTXSID | DTXSID90894076 |
| Lokaler Name | Kaliumperiodat |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 74,3 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 4 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 6 |
| Formalladung | 0 |
| Komplexität | 118 |
| Stoffklassen | Other Classes -> Halogens, Inorganic Compounds |
| Dichte | 3.618 @ 15°C |
| Physical Description | Colorless or white solid[Hawley] Colorless odorless powder[MSDSonline] |
| Schmelzpunkt | 582 °C |
| Siedepunkt | explodes [HAW93] |
| Dampfdichte | 7.9 (vs air) |
| Lagerbedingungen | 2-8°C |
| Löslichkeit | H2O: 0.01 M at 20 °C, clear, colorless0.42 g/100 mL (20 ºC) |
| Aggregatzustand | Powder/Solid |
| Farbe | White to off-white |
| Wichte | 3.618 |
| pH | pH (5g/l, 25℃) : 4.5～5.5 |
| Geruch | Odorless |
| Merck | 14,7654 |
| Stabilität | Stable. Strong oxidizer - contact with combustible materials may cause fire. Incompatible with organic material, combustible material, strong reducing agents, powdered metals. |
| InChI | 1S/HIO4.K/c2-1(3,4)5/h(H,2,3,4,5)/q+1/p-1 |
| InChIKey | FJVZDOGVDJCCCR-UHFFFAOYSA-M |
| SMILES | [K+].[O-]I(=O)(=O)=O |
| CAS Datenbank | 7790-21-8(CAS DataBase Reference) |
| EPA chemische Informationen | Periodic acid (HIO4), potassium salt (7790-21-8) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH272 (96.4%): May intensify fireoxidizer [Danger Oxidizing liquidsOxidizing solids]P210, P220, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 56 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H302: Harmful if swallowed [Warning Acute toxicity, oral] |
|---|---|
| Regulatorische Informationen | Chemical: Periodic acid (HIO4), potassium saltPeriodic acid, potassium salt: HSNO Approval: HSR001341 Approved with controls |
| Weitere Sicherheitsinformationen | IMAP assessments - Periodic acid and its salts: Human health tier II assessment |
| Gefahrenübersicht | A strong skin, eye, and mucous membrane irritant[Merck Index] May cause fire on contact with organic substancesA strong oxidizing agent and irritant[Hawley] A skin and eye irritant[eChemPortal: ERMA] An oxidizing agentMay cause fire on contact with combustible materialAn irritant[MSDSonline] See Metaperiodic acid. |
| Hazard Classes and Categories | Ox. Sol. 2 (96.4%)Acute toxicity (ingestion) - category 4 |
| Protective Action Criteria (PAC) | 1.2 [mg/m3]13 [mg/m3]79 [mg/m3] |
| F | 3 |
| Wassergefährdungsklasse (WGK) | 3 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 1479 5.1/PG 2 |
| Zollcode | 28299000 |
| R-Sätze (R) | 8-36/37/38 |
| Gefahrensymbole | O,Xi |
| Sicherheitshinweise (S) | 17-26-36-37/39 |
| Gefahrenklasse | 5.1Aquatic Acute 1Eye Dam. 1Ox. Sol. 1Skin Corr. 1CSTOT RE 1 |
| Verpackungsgruppe | II |
| Lagerklasse | 5.1A - Strongly oxidizing hazardous materials |
Anwendungen & Verwendung
Verwenden
For the colorimetric determination of Mn (oxidizes manganese compounds to permanganates), as oxidizing agentPotassium periodate is used as an oxidizing agent in organic synthesis and an analytical reagent for the determination of potassium and cerium. It is also used in colorimetric estimation of manganese. It reacts with ammonium cerium(IV) nitrate to prepare tris[trinitratocerium(IV)] paraperiodate which finds application as an oxidant.
Herstellung & Synthese
synthetische
Potassium periodate can be prepared by oxidation of potassium iodate with a powerful oxidizing agent such as potassium permanganate, chlorine or bromine in basic solution:IO3ˉ+ Cl2+ 2OHˉ→IO4ˉ+ 2Clˉ+ H2OAlso, the salt may be prepared by electrolysis.