Kaliumperiodat
Potassium periodate
Grundinformationen
- CAS
7790-21-8- Standard-SMILES
[K+].[O-][I+3]([O-])([O-])[O-]- InChIKey
WZIUPTUZHCSBAA-UHFFFAOYSA-N- Summenformel
- I.K.O4
- Durchschnittliche Molmasse
- 230 g/mol
- Monoisotopische Masse
- 229,84783816
Namen und Bezeichner
- Bevorzugter Name
- Potassium periodate
- IUPAC
- potassium periodate
- Lokaler Name
- Kaliumperiodat
- Englischer Name
- Potassium periodate
- Summenformel
- H2IKO4
- Molmasse
- 232.01
Namen und Synonyme
Potassium periodate7790-21-8POTASSIUM METAPERIODATEQ3LOC6P66LDTXSID90894076Periodic acid (HIO4), potassium salt (1:1)RefChem:867964DTXCID301324119232-196-0potassium;periodateUNII-Q3LOC6P66LEINECS 232-196-0
Weitere Namen anzeigen
ACS， 99.8%-100.3%Potassium ｍ-PeriodaPOTASSIUM M-PERIODATEPotassiumPeriodateKIO4Potassium periodate 99%PotassiumMetaperiodateGrpotassium periodate, acsPotassium metaperiodiate
Periodic acid (HIO4), potassium saltMFCD00011407IKO4POTASSIUM IODATE (KIO4)POTASSIUM PERIODATE [MI]K (I O4)AKOS015901592NS00046869
Datenbank-Bezeichner
- CAS
7790-21-8- PubChem CID
- 516896
- DTXSID
DTXSID90894076- UNII
- Q3LOC6P66L
- EC Number
- 232-196-0
- Nikkaji
- J43.936C
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 74,3 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 4
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 6
- Formalladung
- 0
- Komplexität
- 118
Experimentelle und physikochemische Eigenschaften
Chemical ClassesOther Classes -> Halogens, Inorganic Compounds
Density3.618 @ 15°C
Physical DescriptionColorless or white solid; [Hawley] Colorless odorless powder; [MSDSonline]
Physikochemische Eigenschaften
- Schmelzpunkt
- 582 °C · 582 °C
- Siedepunkt
- 93 · explodes [HAW93]
- Dichte
- 3.618 · 3.618
- Dampfdichte
- 7.9 · 7.9 (vs air)
- storage temp.
- 2 · 2-8°C
- Löslichkeit
- 2 O: · H2O: 0.01 M at 20 °C, clear, colorless
- Aggregatzustand
- Powder/Solid
- Farbe
- White to off-white
- Wichte
- 3.618 · 3.618
- PH
- 5 g/l, · pH (5g/l, 25℃) : 4.5～5.5
- Geruch (Odor)
- Odorless
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Danger
H272 (96.4%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing 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.
Danger
H302: Harmful if swallowed [Warning Acute toxicity, oral]
Gefahrenhinweise
Regulatory Information
Chemical: Periodic acid (HIO4), potassium salt
Periodic acid, potassium salt: HSNO Approval: HSR001341 Approved with controls
Other Safety InformationIMAP assessments - Periodic acid and its salts: Human health tier II assessment
Hazards Summary
A strong skin, eye, and mucous membrane irritant; [Merck Index] May cause fire on contact with organic substances; A strong oxidizing agent and irritant; [Hawley] A skin and eye irritant; [eChemPortal: ERMA] An oxidizing agent; May cause fire on contact with combustible material; An irritant; [MSDSonline] See Metaperiodic acid.
Hazard Classes and Categories
Ox. Sol. 2 (96.4%)
Acute toxicity (ingestion) - category 4
Sicherheit und Schutzausrüstung
Protective Action Criteria (PAC)
Chemie und Industrie
Verwendung und Herstellung
UsesUsed as oxidizing agent (in acid solution) for manganese and organic compounds; [Merck Index]
General Manufacturing InformationPeriodic acid (HIO4), potassium salt (1:1): ACTIVE
Anwendungen
VerwendenFor 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.
Darstellung
synthetischePotassium 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.
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