Potassium periodate

Potassium periodate

Potassium periodate has formula KIO4.

Density is 3,618 kg m-3. It melts at 581.85 °C and has a molecular weight of 230.0 g/mol.

It is slightly soluble in water (one of the less soluble of potassium salts, owing to a large anion), giving rise to a solution that is slightly alkaline. On heating (especially with manganese(IV) oxide as catalyst), it decomposes to form potassium iodate, releasing oxygen gas.

The low solubility of KIO4 makes it useful for the determination of potassium.

Note that the pronunciation is per-iodate, not period-ate.

External links


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Periodate — (IPA: /pəˈraɪ.ədeɪt/) is an anion composed of iodine and oxygen. Periodates include two forms. The metaperiodate ion is IO4−; the orthoperiodate ion is IO65−. Usually both forms are called periodates. Periodate is the conjugate base of… …   Wikipedia

  • Potassium perchlorate — Potassium perchlorate …   Wikipedia

  • Potassium iodate — Chembox new Name = Potassium iodate OtherNames = iodic acid, potassium salt Section1 = Chembox Identifiers CASNo = 7758 05 6 Section2 = Chembox Properties Formula = KIO3 MolarMass = 214.00 g/mol Appearance = white crystalline powder Density =… …   Wikipedia

  • Periodate de potassium — Général Nom IUPAC …   Wikipédia en Français

  • Dictionary of chemical formulas — This is a list of chemical compounds with chemical formulas and CAS numbers, indexed by formula. This complements alternative listings to be found at list of inorganic compounds, list of organic compounds and inorganic compounds by element. Table …   Wikipedia

  • Kaliumperiodat — Strukturformel Allgemeines …   Deutsch Wikipedia

  • Iodate — An iodate is a salt of iodic acid. [ [http://www.m w.com/cgi bin/dictionary?book=Dictionary va=iodate Merriam Webster definition] ] In the iodate anion, iodine is bonded to three oxygen atoms and the molecular formula is IO3−. The molecular… …   Wikipedia

  • Liste de composés inorganiques K — Sommaire 1 Potassium 2 Krypton A B C D E F G H I K L …   Wikipédia en Français

  • Liste des composés inorganiques K — Liste de composés inorganiques K Sommaire 1 Potassium 2 Krypton // A B C D …   Wikipédia en Français

  • iodine — /uy euh duyn , din/; in Chem. also /uy euh deen /, n. Chem. a nonmetallic halogen element occurring at ordinary temperatures as a grayish black crystalline solid that sublimes to a dense violet vapor when heated: used in medicine as an antiseptic …   Universalium

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”