Description

Sodium Rhodizonate is the sodium salt of rhodizonic acid, a specialized organic compound recognized for its distinct chelating properties and colorimetric reactivity. This chemical is valued for its selective interaction with specific metal ions, making it a critical reagent in analytical chemistry and materials science. It is primarily sought by professionals in laboratory research, industrial quality control, and forensic science for precise detection and analysis applications.

Application

• Analytical Chemistry Reagent: Used as a sensitive spot-test reagent for the detection and identification of specific metal cations, such as barium, strontium, and lead.
• Forensic Analysis: Employed in forensic laboratories for the detection of gunshot residue (GSR) and trace metal analysis on various surfaces.
• Industrial Quality Control: Applied in process control and environmental monitoring to test for the presence of sulfate ions or specific heavy metals.
• Research & Development: Serves as a key intermediate or chelating agent in the synthesis of novel coordination compounds and materials research.
• Educational Laboratories: Utilized in university and technical school labs to demonstrate principles of qualitative inorganic analysis and complexometric reactions.
• Pigment & Dye Intermediate: Acts as a precursor in the development of certain specialized dyes and pigments due to its conjugated quinoid structure.

Basic Information

Product Name	Sodium Rhodizonate
CAS No.	523-21-7
Molecular Formula	C6Na2O6
Molecular Weight	214.06 g/mol
Synonyms	Disodium 1,2-Dihydroxycyclobut-3-ene-1,2-dionate; Disodium Rhodizonate; Rhodizonic Acid Disodium Salt; 1,2-Dihydroxy-3,4-dioxocyclobut-1-ene Disodium Salt; Sodium Salt of Rhodizonic Acid
EINECS	208-333-9

Quality Control

Our Sodium Rhodizonate is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including purity assay, identification, and impurity profiling, to ensure it meets the high standards required for analytical and research applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with our stringent specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light may affect its stability and performance.

Specification

Item	Specification
Appearance	Brownish-red to dark brown powder
Identification (IR)	Conforms
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.