Diammonium oxalate monohydrate
CAS: 6009-70-7
Category: Inorganic Chemicals
| Purity | Analytical Reagent Grade (AR) ≥99.0%; High Purity Grade ≥99.5%; Laboratory Grade ≥98.0% |
| Molecular Formula | C2H10N2O5 |
| Molecular Weight | 142.11 |
| Appearance | White crystalline powder or colorless/white crystalline granules, odorless, slightly soluble in water. |
| Packaging | 25 kg paper-plastic composite bags, 25 kg HDPE bags, 500 kg or 1000 kg jumbo bags, and laboratory reagent bottles (100 g, 500 g, 1 kg). |
| Testing Indicators | Appearance — Visual inspection; Identification — Chemical reaction with calcium salts producing calcium oxalate precipitate; Assay/Purity — Acid-base titration or permanganate titration after oxidation of oxalate ions (GB/T or equivalent methods); Moisture content — Karl Fischer titration or loss on drying (LOD); Insoluble matter — Gravimetric filtration method; Chloride content — Ion chromatography or argentometric titration; Sulfate content — Turbidimetric method; Iron content — Atomic absorption spectroscopy (AAS) or ICP-OES; Heavy metals — ICP-MS/AAS analysis. |
| Storage Notes | Store in a cool, dry, and well-ventilated place. Keep container tightly closed and protected from moisture. Avoid contact with strong acids, strong oxidizing agents, and sources of heat. Store away from incompatible materials and humidity because the compound can absorb moisture and may decompose under unsuitable conditions. |
| Lead Time | 10 days |
Diammonium oxalate monohydrate is mainly used as an analytical reagent and laboratory chemical. It is widely applied in analytical chemistry for precipitation and separation of calcium ions, preparation of oxalate solutions, calibration of analytical instruments, and chemical research. It is also used as an intermediate reagent in inorganic synthesis and metal ion analysis.