Description

Rhodizonic Acid Dihydrate is a specialized organic compound primarily used as a sensitive analytical reagent. Its value lies in its ability to form distinctive colored complexes with specific metal ions, making it a critical tool for qualitative and quantitative analysis. This chemical is essential for researchers and quality control laboratories in the chemical, pharmaceutical, and environmental sectors requiring precise detection methods.

Application

• Analytical Chemistry Reagent: Used as a specific colorimetric indicator for the detection and determination of barium, strontium, and lead ions.
• Metal Ion Complexation: Employed in research for studying complex formation equilibria and coordination chemistry.
• Teaching & Research Laboratories: Serves as a demonstrative reagent in university and industrial labs for qualitative inorganic analysis.
• Environmental Testing: Potential application in screening for specific heavy metal contaminants in water or soil samples.
• Pharmaceutical Analysis: Can be utilized in trace analysis for certain metal impurities in active pharmaceutical ingredients (APIs) or excipients.
• Material Science: Used in the synthesis and study of metal-organic frameworks (MOFs) or other coordination polymers.

Basic Information

Product Name	Rhodizonic Acid Dihydrate
CAS No.	63183-44-8
Molecular Formula	C6H6O8 • 2H2O
Molecular Weight	230.12 g/mol (Dihydrate)
Synonyms	1,2-Dihydroxycyclobut-3-ene-1,2-dione dihydrate; 3,4-Dihydroxy-3-cyclobutene-1,2-dione dihydrate; Rhodizonic acid; Dihydroxycyclobutenedione dihydrate; K2CO3 Test Reagent; Barium Detection Reagent
EINECS	Contact for details

Quality Control

Our Rhodizonic Acid Dihydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and performance as a reagent. While typically supplied as a high-purity laboratory-grade chemical, production can be aligned with specific customer requirements. A Certificate of Analysis (COA) detailing specifications such as assay, loss on drying, and heavy metal content is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area 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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 15.5% (theoretical for dihydrate ~15.66%)
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Test)	Soluble in water, giving a yellow solution

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