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Product Name: Ammonium Oxalate Monohydrate
Overview
Ammonium oxalate, also known as diammonium oxalate, is an inorganic compound widely used in analytical chemistry, metal finishing, pharmaceuticals, and education. With the chemical formula (NH₄)₂C₂O₄·H₂O, it typically appears as a white crystalline powder and is highly soluble in water.
Chemical Information
Chemical Name: Ammonium Oxalate Monohydrate
CAS Number: 6009-70-7
EC Number: 214-185-2
Molecular Formula: (NH₄)₂C₂O₄·H₂O
Molecular Weight: 142.11 g/mol
Appearance: White crystalline powder
Solubility: Freely soluble in water, insoluble in ethanol
Odor: Odorless
Storage: Store in a dry, ventilated area away from direct sunlight
Typical Specifications
| Parameter | Value |
| Purity (as (NH₄)₂C₂O₄·H₂O) | ≥ 99.0% |
| Chloride (Cl⁻) | ≤ 0.002% |
| Sulfate (SO₄²⁻) | ≤ 0.005% |
| Iron (Fe) | ≤ 0.001% |
| Heavy Metals (Pb) | ≤ 0.001% |
| Water-Insoluble Matter | ≤ 0.01% |
| Loss on Drying | 11.5 – 13.0% |
| pH (5% solution) | 6.0 – 8.0 |
Production Method
Ammonium oxalate is manufactured by neutralizing oxalic acid with aqueous ammonia. The resulting solution is filtered, crystallized, and dried to produce high-purity monohydrate crystals.
Raw Materials
Oxalic acid
Aqueous ammonia
Working Principle
Ammonium oxalate acts as a chelating and precipitating agent in various chemical reactions. It is especially valuable in analytical procedures involving the determination of calcium and rare earth metals, where it forms insoluble precipitates for accurate quantification.
Applications
Analytical chemistry: Used as a reagent for calcium, magnesium, and rare earth ion precipitation
Metal surface treatment: In electroplating and complexing baths
Pharmaceuticals: Intermediate or excipient in synthesis
Photography: Used in photographic development chemicals
Laboratories & Education: Common in chemical education and demonstrations
Research: Inorganic and coordination chemistry studies
Why Choose Jiangsu Khonor Chemicals Co., Limited
Over 10 years of expertise in chemical production and export
In-house quality control and third-party testing support
Flexible packaging and OEM customization
Reliable global logistics with on-time delivery
Professional technical support and documentation
Ordering & Packaging
Packaging: 25kg fiber drum, kraft paper bag, or as per customer request
Lead Time: 7–14 working days after order confirmation
Free samples: Available upon request
Documentation: COA, MSDS, TDS, and shipping documents provided
Shipping: Global delivery via sea, air, or express
COA - reagent - Ammonium Oxalate.pdf