Description

Potassium Tetroxalate Dihydrate is a high-purity, crystalline salt of oxalic acid. This specialized chemical is valued for its precise buffering and chelating properties in analytical and research applications. It serves as a critical reagent for analytical chemistry, laboratory research, and industrial cleaning processes where controlled acidity and metal ion complexation are required.

Application

• Primary Standard in Analytical Chemistry: Used for the standardization of alkaline solutions like potassium permanganate and sodium hydroxide due to its high purity and well-defined composition.
• Buffer Component: Employed in the preparation of precise pH buffer solutions for laboratory and research purposes.
• Metal Chelation & Cleaning: Acts as a chelating agent in specialized metal cleaning and polishing formulations, particularly for iron and rust removal.
• Research & Development: Serves as a key starting material or reagent in chemical synthesis and various research applications within academic and industrial laboratories.
• Textile & Wood Processing: Utilized in niche applications for bleaching and cleaning processes in textile and wood treatment industries.

Basic Information

Product Name	Potassium Tetroxalate Dihydrate
CAS No.	6100-20-5
Molecular Formula	C4H4K2O10 • 2H2O
Molecular Weight	326.27 g/mol
Synonyms	Potassium Hydrogen Oxalate Dihydrate; Potassium Binoxalate Dihydrate; Potassium Quadroxalate Dihydrate; Acid Potassium Oxalate Dihydrate; Tetrapotassium Oxalate Dihydrate; Salt of Sorrel; Sal Acetosella; KHO; IUPAC: Potassium 2-hydroxy-2-oxoacetate; oxalate (1-)
EINECS	Contact for details

Quality Control

Our Potassium Tetroxalate Dihydrate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for analytical and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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 (store away from light); containers must be kept tightly sealed to prevent absorption of atmospheric moisture and degradation.

Specification

Item	Specification
Appearance	White or colorless crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 99.0%
Water (Karl Fischer)	10.0 - 12.0%
Insoluble Matter	≤ 0.01%
Chloride (Cl)	≤ 0.001%
Sulfate (SO4)	≤ 0.002%
Heavy Metals (as Pb)	≤ 0.0005%

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