Description

Sodium Cobaltinitrite is an inorganic coordination compound with the formula Na3[Co(NO2)6]. This distinctive yellow crystalline powder is a key reagent in analytical chemistry, primarily valued for its selective precipitation of potassium ions. It serves as a critical material for research and quality control laboratories across various industrial sectors. Its reliable performance makes it essential for professionals in chemical analysis, pharmaceutical development, and materials science.

Application

• Analytical Chemistry: Primary use as a specific precipitating agent for the qualitative and quantitative determination of potassium (K+) ions in solution.
• Pharmaceutical Testing: Used in the analysis of raw materials and finished drug products to identify and quantify potassium content, ensuring compliance with pharmacopeial standards.
• Fertilizer & Agricultural Analysis: Employed in soil testing and fertilizer quality control to measure potassium levels, a crucial macronutrient for plant growth.
• Clinical & Biochemical Research: Applied in laboratory procedures for studying biological fluids and cellular processes involving potassium metabolism.
• Geochemical Analysis: Utilized in the examination of minerals, rocks, and water samples to determine potassium concentration.
• Educational & Teaching Laboratories: Serves as a classic reagent for demonstrating precipitation reactions and qualitative inorganic analysis in academic settings.
• Industrial Process Control: Monitors potassium levels in various industrial streams, such as in food processing or chemical manufacturing.

Basic Information

Product Name	Sodium Cobaltinitrite
CAS No.	13600-98-1
Molecular Formula	CoN6Na3O12 or Na3[Co(NO2)6]
Molecular Weight	403.94 g/mol
Synonyms	Cobaltinitrous acid sodium salt; Sodium hexanitritocobaltate(III); Trisodium hexanitritocobaltate(3-); Sodium cobalt nitrite; Cobalt sodium nitrite; Potassium precipitant
EINECS	237-107-6

Quality Control

Our Sodium Cobaltinitrite is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity, consistent reactivity, and compliance with relevant industry standards for reagent-grade chemicals. A comprehensive Certificate of Analysis (COA) detailing assay, identification, and impurity profiles is provided with every shipment to guarantee traceability and performance for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound is easily oxidized and should be kept away from strong oxidizing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain stability and shelf life.

Specification

Item	Specification
Appearance	Yellow to orange-yellow crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0%
Solubility (in water)	Clear, yellow solution
Loss on Drying	≤ 1.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 0.002 %

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