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Sodium rhodizonate

Product Name
Sodium rhodizonate
CAS No.
523-21-7
Chemical Name
Sodium rhodizonate
Synonyms
RHODIZONIC ACID DISODIUM SALT;3,4,5,6-TETRAOXOCYCLOHEXENE-1,2-DIOL DISODIUM SALT;DISODIUM RHODIZONATE;RHODIZONIC ACID SODIUM SALT;Sodium roseate;Sodium rhodizote;Sodiumrhodizmate;Sodium roselonate;SODIUM RHODIZONATE;SodiumRhodizonateGr
CBNumber
CB3134496
Molecular Formula
C6Na2O6
Formula Weight
214.04
MOL File
523-21-7.mol
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Sodium rhodizonate Property

Melting point:
300 °C
storage temp. 
Store at +15°C to +25°C.
form 
Fine Crystalline Powder
color 
Green-gray to dark green
Water Solubility 
Soluble in water.
Merck 
14,8670
BRN 
5181379
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
SXWPCWBFJXDMAI-UHFFFAOYSA-L
CAS DataBase Reference
523-21-7(CAS DataBase Reference)
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Safety

Safety Statements 
24/25
WGK Germany 
3
HS Code 
29144090
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
R1609
Product name
Sodium rhodizonate dibasic
Purity
97%
Packaging
5g
Price
$48.7
Updated
2024/03/01
Sigma-Aldrich
Product number
1.06595
Product name
Rhodizonic acid disodium salt
Purity
indicator for sulfate titration
Packaging
5G
Price
$225
Updated
2024/03/01
TCI Chemical
Product number
R0019
Product name
Disodium Rhodizonate
Purity
>90.0%(T)
Packaging
1g
Price
$43
Updated
2024/03/01
TCI Chemical
Product number
R0019
Product name
Disodium Rhodizonate
Purity
>90.0%(T)
Packaging
25g
Price
$433
Updated
2024/03/01
Alfa Aesar
Product number
A16126
Product name
Rhodizonic acid disodium salt, 98%
Packaging
5g
Price
$42
Updated
2023/06/20
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Sodium rhodizonate Chemical Properties,Usage,Production

Chemical Properties

dark green powder

Uses

Sodium rhodizonate dibasic can be employed as a reactant in the synthesis of:

  • Dihydroxyquinone carbonate by cyclocondensation reaction with phosgene.
  • Zwitterionic systems by condensation of heteroaryl-boronic acids.

Uses

As a reagent for barium and strontium.

Purification Methods

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 Preparation Products And Raw materials

Raw materials

Preparation Products

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Sodium rhodizonate Suppliers

Australia 1 Austria 1 Belgium 1 China 199 Europe 2 Germany 5 India 17 Japan 4 Poland 1 Switzerland 1 United Kingdom 5 United States 33 Global 270
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
ChemPur GmbH
Tel
--
Fax
--
Email
info@ChemPur.de
Country
Germany
ProdList
2737
Advantage
50
Service Chemical Inc.
Tel
--
Fax
--
Email
sales@chemos-group.com
Country
Germany
ProdList
6350
Advantage
71
ABCR GmbH & CO. KG
Tel
--
Fax
--
Email
info@abcr.de
Country
Germany
ProdList
6831
Advantage
75
Merck Schuchardt OHG
Tel
--
Fax
--
Email
schuchardt-vertrieb@merck.de
Country
Germany
ProdList
5827
Advantage
74
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View Lastest Price from Sodium rhodizonate manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
Sodium rhodizonate 523-21-7
Price
US $0.00/kg
Min. Order
1kg
Purity
99%min
Supply Ability
100kg
Release date
2022-10-12
Hebei Weibang Biotechnology Co., Ltd
Product
Sodium rhodizonate 523-21-7
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 mt
Release date
2024-11-19
Hebei Chuanghai Biotechnology Co,.LTD
Product
Sodium Rhodizonate 523-21-7
Price
US $10.70/KG
Min. Order
10KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-13

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