Oxalic Acid
Chemical Formula: C2H2O4
Properties:
1. Appearance: White crystalline powder
2. Odor: Slightly acrid
3. Molecular Weight: 90.04 g/mol
4. Density: 1.65 g/cm³ (at 20°C)
5. Melting Point: 189-191°C
6. Boiling Point: Decomposes at 160-170°C
7. Solubility: Soluble in water, ethanol, and most organic solvents
Uses:
1. Cleaning and rust removal
2. Textile and leather processing
3. Metal finishing and electroplating
4. Pharmaceutical and cosmetic applications
5. Food industry: Preservative and acidity regulator
Safety and Precautions:
1. Toxicity: Highly toxic (LD50: 140-150 mg/kg)
2. Corrosive: Causes skin and eye irritation
3. Handling: Wear protective gear, avoid ingestion and inhalation
Regulations:
1. EPA-regulated (USA)
2. OSHA-regulated (USA)
3. EU-listed (Europe)
4. WHO-classified (WHO)
Alternative Names:
1. Ethanedioic acid
2. Oxalic acid anhydrous
3. Oxiric acid
Specifications:
1. Purity: 99.5% min.
2. Loss on Drying: 0.5% max.
3. Heavy Metals: 10 ppm max.
4. Assay: 99-101%
Typical Grades:
1. Technical grade
2. Pharmaceutical grade (USP)
3. Food grade (FCC)
4. Analytical reagent grade
