Applications
Cleaning agent & rust remover: Used to clean metal surfaces, remove rust, and eliminate scale deposits in industrial equipment.
Textile processing: Acts as a bleaching agent and mordant to fix dyes on fabrics.
Chemical synthesis: Key raw material for producing cobalt, nickel, and copper metals, as well as oxalates and polyamide resins.
Leather tanning: Enhances fiber stability and prevents decay in leather processing.
Solar cell production: Reduces surface defects in silicon wafers for photovoltaic panels.
Drug intermediates: Used in synthesizing antibiotics (e.g., tetracycline, streptomycin) and vitamins (e.g., B12).
Anticoagulant: Combines with calcium ions to reduce kidney stone formation.
Analytical reagent: Quantifies calcium, magnesium, and iron ions via redox titration.
Heavy metal remediation: Chelates lead, cadmium, and other pollutants in wastewater and soil.
Acidulant: Adjusts acidity in baked goods and preserves food (limited to safe levels).
Household cleaner: Removes limescale and stains from ceramics, tiles, and bathroom fixtures.
Toxicity: Corrosive to skin and mucous membranes; excessive intake may cause kidney stones or metabolic disorders.
Handling: Requires protective gear (gloves, goggles) and proper ventilation during use
Specification
| Test Item | Standard | Test Results | Test Methods | ||
| Superior Product | First-Class Product | Qualified Product | |||
| Appearance | White Crystal Powder | Qualified | Visual Inspection | ||
| Oxalic acid (H2C2O4.2H2O) |
≥99.6% | ≥99.0% | ≥96.0% | 99.92% | GT-B1626-2008 |
| Sulfate (as SO4) | ≤0.07% | ≤0.10% | ≤0.20% | 0.003% | GT-B1626-2008 |
| Burning residue | ≤0.01% | ≤0.08% | ≤0.20% | 0.003% | GT-B1626-2008 |
| Heavy Metal(as Pb) | ≤0.0005% | ≤0.001% | ≤0.02% | 0.0005% | GB-T7532 |
| Iron (Fe) | ≤0.0005% | ≤0.0015% | ≤0.01% | 0.0002% | GT-B 1626-2008 |
| Chloride(Cl) | ≤0.0005% | ≤0.002% | ≤0.01% | 0.0005% | GT-B 1626-2008 |
| Calcium(Ca) | ≤0.0005% | 0.00003% | GT-B1626-2008 | ||
| Conclusion: | The product was tested and determined to be Superior Product | ||||
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