Description

Dimethylglyoxime Disodium Salt Octahydrate is a high-purity analytical reagent primarily used as a highly selective chelating agent for nickel and palladium ions. Its value lies in its ability to form distinctive, insoluble colored complexes, making it indispensable for precise quantitative and qualitative analysis. This compound is essential for professionals in analytical chemistry, metallurgy, and environmental testing who require reliable reagents for trace metal detection and separation.

Application

• Gravimetric and Colorimetric Analysis of Nickel: The primary application is as a specific precipitating and color-forming reagent for the accurate determination of nickel content in alloys, ores, and plating solutions.
• Palladium Detection and Separation: Used for the selective identification and isolation of palladium from complex mixtures and catalyst streams.
• Electroplating Bath Analysis: Critical for monitoring and controlling nickel ion concentration in electroplating and electroless plating processes to ensure bath efficiency and coating quality.
• Environmental and Wastewater Testing: Employed in laboratories to detect and quantify trace levels of nickel and palladium in environmental samples, ensuring compliance with regulatory discharge limits.
• Metallurgical Assaying: Used in the analysis of stainless steel, superalloys, and other nickel-containing metals to verify composition and grade.
• Research and Development: Serves as a key reagent in chemical synthesis and materials science research involving nickel or palladium coordination chemistry.

Basic Information

Product Name	Dimethylglyoxime Disodium Salt Octahydrate
CAS No.	75006-64-3
Molecular Formula	C4H6N2Na2O2 • 8H2O
Molecular Weight	304.19 g/mol (Anhydrous: 160.07 g/mol)
Synonyms	Dimethylglyoxime Sodium Salt; Sodium Dimethylglyoximate Octahydrate; DMG-Na Salt; 2,3-Butanedione dioxime disodium salt octahydrate; Nickel reagent; Chugaev's reagent (sodium salt); Ni-DMG reagent; Palladium reagent.
EINECS	Contact for details

Quality Control

Our Dimethylglyoxime Disodium Salt Octahydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for analytical applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical laboratory work.

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); ensure the container is securely sealed after each use to prevent absorption of atmospheric moisture, which can affect purity and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Solubility (in Water)	Clear, colorless solution
Loss on Drying	≤ 47.5 % (Theoretical for Octahydrate: ~47.3%)
Heavy Metals (as Pb)	≤ 20 ppm
Nickel Complex Test	Forms characteristic scarlet-red precipitate

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