Dinatrium-3,4,5,6-tetraoxocyclohex-1-en-1,2-ylendioxid Produkt Beschreibung

Sodium rhodizonate Struktur
523-21-7
  • CAS-Nr.523-21-7
  • Bezeichnung:Dinatrium-3,4,5,6-tetraoxocyclohex-1-en-1,2-ylendioxid
  • Englisch Name:Sodium rhodizonate
  • Synonyma:Dinatrium-3,4,5,6-tetraoxocyclohex-1-en-1,2-ylendioxid
    Sodiumrhodizmate;Sodium rhodizote;SODIUM RHODIZONATE;SodiumRhodizonateGr;SODIUM RHODIAZONATE;DISODIUM RHODIZONATE;Rhodizonic acid sodi;Rhodizonic acid sodium;SODIUM RHODIZONATE DIBASIC;RHODIZONIC ACID SODIUM SALT
  • CBNumber:CB3134496
  • Summenformel:C6Na2O6
  • Molgewicht:214.04
  • MOL-Datei:523-21-7.mol
Dinatrium-3,4,5,6-tetraoxocyclohex-1-en-1,2-ylendioxid physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :300 °C
  • storage temp.  :Store at +15°C to +25°C.
  • Aggregatzustand :Fine Crystalline Powder
  • Farbe :Green-gray to dark green
  • Wasserlöslichkeit :Soluble in water.
  • Merck  :14,8670
  • BRN  :5181379
  • Stabilität: :Stable. Incompatible with strong oxidizing agents.
  • InChIKey :SXWPCWBFJXDMAI-UHFFFAOYSA-L
  • CAS Datenbank :523-21-7(CAS DataBase Reference)
Sicherheit
  • S-Sätze: :24/25
  • WGK Germany  :3
  • HS Code  :29144090

Sodium rhodizonate Chemische Eigenschaften,Einsatz,Produktion Methoden

  • S-Sätze Betriebsanweisung: S24/25:Berührung mit den Augen und der Haut vermeiden.
  • Chemische Eigenschaften dark green powder
  • Verwenden As a reagent for barium and strontium.
  • läuterung methode The free acid is obtained by acidifiying and extracting with Et2O, drying (MgSO4), filtering, evaporating and distilling in a vacuum (b 155-160o/14mm). The free acid solidifies on cooling, and the colourless crystals can be recrystallised from tetrahydrofuran/pet ether or *C6H6. It forms a dihydrate m 130-140o. The pure di Na salt is formed by dissolving the acid in 2 equivalents of NaOH and evaporating in a vacuum. It forms violet crystals which give an orange solution in H2O that is unstable for extended periods even at 0o, and should be prepared freshly before use. Salts of rhodizonic acid cannot be purified by recrystallisation without great loss due to conversion to crotonate, so that the original material must be prepared anew if pure salt is required. It can be washed with NaOAc solution, then EtOH, to remove excess NaOAc, dried under vacuum and stored in the dark. [UV and tautomerism: Schwarzenbach & Suter Helv Chim Acta 24 617 1941, Polarography: Preisler & Berger J Am Chem Soc 64 67 1942, Souchay & Taibouet J Chim Phys 49 C108 1952, Beilstein 8 H 535, 8 II 572, 8 III 4214, 8 IV 3609.]
Sodium rhodizonate Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Dinatrium-3,4,5,6-tetraoxocyclohex-1-en-1,2-ylendioxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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523-21-7, Sodium rhodizonate Verwandte Suche:
  • 5-Cyclohexene-1,2,3,4-tetrone,5,6-dihydroxy-, sodium salt (1:2)
  • DISODIUM RHODIZONATE
  • 5,6-DIHYDROXY-5-CYCLOHEXENE-1,2,3,4-TETRONE DISODIUM SALT
  • 3,4,5,6-TETRAOXOCYCLOHEXENE-1,2-DIOL DISODIUM SALT
  • 1,2-DIHYDROXY-3,4,5,6-TETRAOXO-1-CYCLOHEXENE DISODIUM SALT
  • RHODIZONIC ACID, DISODIUM DERIVATIVE
  • RHODIZONIC ACID DISODIUM SALT
  • RHODIZONIC ACID SODIUM SALT
  • SODIUM RHODIZONATE
  • SODIUM RHODIZONATE DIBASIC
  • 2,3,4-tetrone,5,6-dihydroxy-5-cyclohexene-disodiumsalt
  • 5-Cyclohexene-1,2,3,4-tetrone,5,6-dihydroxy-,disodiumsalt
  • 5,6-Di(sodiooxy)-5-cyclohexene-1,2,3,4-tetrone
  • Rhodizonic acid sodium
  • Rhodizonic acid, disodium salt,98%
  • Sodium rhodizonate, indicator for metal titration, reagent grade
  • Sodium rhodizonate dibasic,3,4,5,6-Tetraoxocyclohexene-1,2-diol disodium salt, Rhodizonic acid disodium salt
  • Rhodizonic acid disodium salt p.a.
  • Rhodizonic acid sodi
  • Rhodizonic Acid Disodium Salt Sodium Rhodizonate 3,4,5,6-Tetraoxocyclohexene-1,2-diol Disodium Salt
  • RHODIZONIC ACID DISODIUM SALT INDICATOR
  • SodiuM 3,4,5,6-tetraoxocyclohex-1-ene-1,2-bis(olate)
  • Sodium rhodizonate dibasic 97%
  • 3,4,5,6-Tetraoxocyclohexene-1,2-diol Disodium Salt Sodium Rhodizonate Disodium Rhodizonate
  • Sodium rhodizote
  • Rhodizonic acid disodium salt indicator for sulfate titration
  • Sodiumrhodizmate
  • 1,2-Dihydroxy-3,4,5,6-tetraoxocyclohexene disodium salt
  • disodium 3,4,5,6-tetraoxocyclohex-1-en-1,2-ylene dioxide
  • RHODIZONIC ACID DISODIUM SALT 97%
  • SodiumRhodizonateGr-(RhodizonicAcidSodiumSalt)
  • SodiumRhodizonateGr
  • SODIUM RHODIAZONATE
  • SODIUM RHODOZINATE extrapure AR
  • 3,4,5,6-Tetraoxocyclohexene-1,2-diol disodium salt, Rhodizonic acid disodium salt
  • Rhodizonic acid, disodium deriv.
  • 5,6-Bis(sodiooxy)-5-cyclohexene-1,2,3,4-tetrone
  • 523-21-7
  • 523-31-7
  • C6H6Na2
  • C6O6Na2
  • C6Na2O6
  • Na2C6O6
  • OCCO3CONaCONa
  • Metal Titration Indicators
  • Analytical Reagents
  • Analytical/Chromatography
  • Building Blocks
  • C3 to C6
  • Carbonyl Compounds
  • Chemical Synthesis
  • Indicators
  • Ketones
  • Organic Building Blocks
  • Titration