Basic information
- CAS
13021-40-4- Standard SMILES
O=c1c([O-])c([O-])c(=O)c(=O)c1=O.[K+].[K+]- InChIKey
NEWIILAQDSMNML-UHFFFAOYSA-L- Molecular formula
- C6K2O6
- Average molar mass
- 246.26 g/mol
- Monoisotopic mass
- 245.89690069
Names & identifiers
- Preferred name
- Potassium rhodizonate
- IUPAC
- dipotassium;3,4,5,6-tetraoxocyclohexene-1,2-diolate
- English name
- Rhodizonic acid dipotassium salt
- Molecular formula
- C6H3KO6
- Molecular weight
- 210.18
Names & synonyms
Potassium rhodizonate5-Cyclohexene-1,2,3,4-tetrone, 5,6-dihydroxy-, dipotassium saltEINECS 235-881-2NSC 82955DTXSID8065323RefChem:175590DTXCID10339593,4,5,6Tetraoxocyclohexene1,2diol dipotassium salt5Cyclohexene1,2,3,4tetrone, 5,6dihydroxy, dipotassium salt5Cyclohexene1,2,3,4tetrone, 5,6dihydroxy, potassium salt (1:2)13021-40-4Rhodizonic Acid Dipotassium Salt
Show more names
rhodizonicIc aciddi potassium saltrhodizonic acid potassiumPotassium Rhodizonate >Rhodizonicacid,dipotassiumsaRhodizonicAcidDipotassiumSalRHODIZONIC ACID POTASSIUM SALT
Dipotassium rhodizonatePotassium 3,4,5,6-tetraoxocyclohex-1-ene-1,2-bis(olate)WZ53DGF8SBMFCD00001649dipotassium;3,4,5,6-tetraoxocyclohexene-1,2-diolate5-Cyclohexene-1,2,3,4-tetrone, 5,6-dihydroxy-, potassium salt (1:2)NSC-82955Kaliumrhodizonat
Database identifiers
- CAS
13021-40-4
Properties
Computed structural properties
- Topological polar surface area
- 114 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 0
- Heavy atoms
- 14
- Formal charge
- 0
- Complexity
- 236
Experimental & physicochemical properties
Chemical ClassesMetals -> Organic Compounds, Metal Salts
Physical DescriptionBlack powder; [Acros Organics MSDS]
Physicochemical properties
- Melting point
- 300 °C · >300 °C (lit.)
- Water Solubility
- Soluble in water
- form
- powder
- color
- dark brown to black
- Stability
- Stable.
- InChI
- 1S/C6H2O6.2K/c7-1-2(8)4(10)6(12)5(11)3(1)9;;/h7-8H;;/q;2*+1/p-2
- InChIKey
- NEWIILAQDSMNML-UHFFFAOYSA-L
- SMILES
- [K+].[K+].[O-]C1=C([O-])C(=O)C(=O)C(=O)C1=O
- CAS DataBase Reference
- 13021 · 13021-40-4(CAS DataBase Reference)
- FDA UNII
- 53 DGF8SB · WZ53DGF8SB
- EPA Substance Registry System
- 5 · 5-Cyclohexene-1,2,3,4-tetrone, 5,6-dihydroxy-, dipotassium salt (13021-40-4)
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Hazard information
Hazards SummaryMay cause irritation; [Acros Organics MSDS] See Rhodizonic acid.
Safety data
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- tsca
- TSCA listed
- hs_code
- 2914.69.9000
- safety_code
- 22-24/25
- Storage Class
- 11 - Combustible Solids
Chemistry & industry
Uses & manufacturing
General Manufacturing Information5-Cyclohexene-1,2,3,4-tetrone, 5,6-dihydroxy-, potassium salt (1:2): ACTIVE
Applications
UsesPotassium rhodizonate is suitable reagent for the preparation of staining solution used in the rhodizonate test for the detection of lead. It is suitable reagent used in the preparation of barium, thallium, ammonium and silver salts rhodizonic acid by metathesis in aqueous solution.It may be used in the following studies:To cocrystallize plutonium and radium from urine in the plutonium and radium assay of urine.As a dye in the spectrophotometric determination of sulfate ion.To determine the acid dissociation constants of rhodizonic acid by pH potentiometric titration of potassium rhodizonate with standardized HCl.As a staining agent for plagioclase in the petrographic study.
General DescriptionPotassium rhodizonate (3,4,5,6-Tetraoxocyclohexene-1,2-diol dipotassium salt, Rhodizonic acid potassium salt), a benzoquinone derivative, is the potassium salt of rhodizonic acid. Its crystalline structure has been reported and it exhibits space group Fddd. Rhodizonate dianion undergoes various thermal and photochemical reactions with various oxidizing reagents in aqueous solution.
Suppliers35 total
梯希爱(上海)化成工业发展有限公司021-67121386 · [email protected]
武汉欣扬瑞和化学科技有限公司153-07155313 15307155313 · [email protected]
武汉布林科技有限公司3456065315 13260619011 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
上海迈瑞尔生化科技有限公司
Related reactions
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Compound notes
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