13021-40-4 Usage
Description
Rhodizonic Acid Dipotassium Salt, also known as Potassium Rhodizonate, is a benzoquinone derivative and the potassium salt of rhodizonic acid. It is characterized by its crystalline structure with a space group Fddd and exhibits a violet to black powder form. Rhodizonate dianion is known to undergo various thermal and photochemical reactions with different oxidizing reagents in aqueous solutions.
Uses
Used in Chemical Analysis:
Rhodizonic Acid Dipotassium Salt is used as a reagent for the preparation of staining solutions in the rhodizonate test for the detection of lead. It is also used in the preparation of barium, thallium, ammonium, and silver salts of rhodizonic acid by metathesis in aqueous solutions.
Used in Environmental and Analytical Studies:
Rhodizonic Acid Dipotassium Salt is used for co-crystallizing plutonium and radium from urine in the plutonium and radium assay of urine, which helps in environmental monitoring and analysis.
Used in Spectrophotometric Analysis:
Rhodizonic Acid Dipotassium Salt serves as a dye in the spectrophotometric determination of sulfate ions, providing a reliable method for quantifying these ions in various samples.
Used in Acid Dissociation Constant Determination:
Rhodizonic Acid Dipotassium Salt is utilized in determining the acid dissociation constants of rhodizonic acid by pH potentiometric titration with standardized HCl, which aids in understanding the acid-base properties of the compound.
Used in Petrographic Studies:
Rhodizonic Acid Dipotassium Salt acts as a staining agent for plagioclase in petrographic studies, enabling the identification and analysis of this mineral in rock samples.
Check Digit Verification of cas no
The CAS Registry Mumber 13021-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,2 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13021-40:
(7*1)+(6*3)+(5*0)+(4*2)+(3*1)+(2*4)+(1*0)=44
44 % 10 = 4
So 13021-40-4 is a valid CAS Registry Number.
InChI:InChI=1/C6H2O6.2K/c7-1-2(8)4(10)6(12)5(11)3(1)9;;/h7-8H;;/q;2*+1/p-2
