Description

Rhodizonic Acid Dipotassium Salt is a high-purity analytical reagent grade chemical compound, primarily recognized for its role as a sensitive and specific colorimetric reagent. Its core value lies in its ability to form distinctive colored complexes with specific metal ions, making it indispensable for qualitative and quantitative analysis. This product is essential for professionals in analytical chemistry, research and development, and quality control laboratories across the pharmaceutical, environmental, and chemical manufacturing industries.

Application

• Analytical Chemistry Reagent: Used as a specific spot-test reagent for the detection and identification of barium, strontium, and lead ions.
• Colorimetric Analysis: Employed in the quantitative determination of specific cations through complexometric titration or spectrophotometric methods.
• Research & Development: Serves as a key intermediate or reagent in the synthesis of novel coordination compounds and materials science research.
• Quality Control (QC) Testing: Applied in industrial QC labs to test for trace metal impurities in products like ceramics, glass, and catalysts.
• Educational Purposes: Used in university chemistry laboratories to demonstrate principles of qualitative inorganic analysis and complex formation.
• Environmental Testing: Potential use in screening water or soil samples for specific heavy metal contaminants.

Basic Information

Product Name	Rhodizonic Acid Dipotassium Salt
CAS No.	13021-40-4
Molecular Formula	C6H2K2O6
Molecular Weight	248.28 g/mol
Synonyms	Dipotassium Rhodizonate; Potassium Rhodizonate; Rhodizonic Acid Potassium Salt; 1,2-Dihydroxycyclobut-3-ene-1,2-dione Dipotassium Salt; 3,4-Dihydroxy-3-cyclobutene-1,2-dione Dipotassium Salt; K2C6O6; Dipotassium 3,4-dihydroxy-3-cyclobutene-1,2-dionate
EINECS	235-874-5

Quality Control

Our Rhodizonic Acid Dipotassium Salt is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including identification, purity assay, and impurity profiling, to meet the high standards required for analytical reagent applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, red solution

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.