Description

Calcium Oxalate Dihydrate is a white, crystalline powder with the chemical formula CaC₂O₄·2H₂O. It serves as a critical precursor and reference material in various industrial and research applications due to its defined stoichiometry and purity. This compound is essential for manufacturers and laboratories in the ceramics, catalyst development, and analytical chemistry sectors seeking reliable and consistent raw materials.

Application

• Ceramics and Glaze Production: Acts as a mineralizer and fluxing agent to control crystal growth and lower firing temperatures.
• Catalyst and Precipitant: Used in the synthesis and preparation of specialized catalysts and for the precipitation of rare earth elements.
• Analytical Reference Standard: Serves as a primary standard in titrimetric analysis and for calibrating instruments in clinical and environmental testing.
• Pharmaceutical Research: Employed in studies related to kidney stone formation (urolithiasis) and as a model compound for crystallization processes.
• Flame Retardant Additive: Incorporated into polymer formulations to enhance fire-resistant properties.
• Specialty Chemical Synthesis: Used as a starting material for producing other oxalate compounds and in organic synthesis reactions.

Basic Information

Product Name	Calcium Oxalate Dihydrate
CAS No.	25454-23-3
Molecular Formula	CaC₂O₄·2H₂O
Molecular Weight	146.11 g/mol (Anhydrous: 128.10 g/mol)
Synonyms	Calcium Oxalate Hydrate; Calcium Ethanedioate Dihydrate; Oxalic Acid Calcium Salt Dihydrate; Whewellite (mineral form); CaOx; Calcium Oxalate USP; Ethanedioic Acid Calcium Salt Dihydrate
EINECS	Contact for details

Quality Control

Our Calcium Oxalate Dihydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and physical properties. Certificates of Analysis (COA) documenting results for assay, loss on drying, and heavy metals are available upon request to support your quality assurance protocols.

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 containers are kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (CaC₂O₄·2H₂O)	≥ 98.0 %
Loss on Drying	≤ 24.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO₄)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 50 ppm

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