Description

Chlorophosphonazo Mn CAS NO 77350-04-0 is a specialized metallochromic indicator and chromogenic reagent primarily used for the selective detection and quantification of manganese and other metal ions. This compound matters for its high sensitivity and selectivity in complexometric titrations and spectrophotometric analyses, providing critical accuracy in trace metal determination. It is essential for analytical laboratories, quality control departments, and research institutions in industries such as metallurgy, environmental monitoring, water treatment, and chemical manufacturing.

Application

• Spectrophotometric Determination of Manganese: Used as a chromogenic reagent for the sensitive and selective colorimetric analysis of manganese (Mn) ions in aqueous solutions.
• Complexometric Titration Indicator: Serves as a metallochromic indicator in EDTA titrations for the determination of manganese and other transition metals.
• Water and Environmental Analysis: Employed in testing for trace metal contaminants in industrial wastewater, drinking water, and environmental samples.
• Metallurgical and Alloy Analysis: Facilitates the precise measurement of manganese content in steel, alloys, and other metal samples.
• Research and Development: Utilized in chemical research for studying metal-ligand interactions and developing new analytical methodologies.
• Quality Control in Chemical Production: Applied in-process testing to monitor metal ion concentrations and ensure product purity.

Basic Information

Product Name	Chlorophosphonazo Mn
CAS No.	77350-04-0
Molecular Formula	C22H14Cl2N4O14P2S2
Molecular Weight	771.33 g/mol
Synonyms	Chlorophosphonazo-Mn; 3,6-Bis[(4-chloro-2-phosphonophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic Acid; Chlorophosphonazomanganese; Manganese Chlorophosphonazo; CPAMn; CAS 77350-04-0; Metallochromic indicator for manganese
EINECS	Contact for details

Quality Control

Our Chlorophosphonazo Mn is produced under stringent quality management protocols to ensure batch-to-batch consistency and high purity suitable for analytical applications. Each lot undergoes comprehensive testing, including identity confirmation by IR spectroscopy, purity assessment by HPLC, and verification of functional performance as a metallochromic indicator. Certificates of Analysis (COA) detailing all test results are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed to minimize exposure to atmospheric moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	Dark purple to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Solubility	Soluble in water, alkaline solutions
Functional Test (as Mn indicator)	Passes performance test

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