Sodium Oxalate Extra Pure
Sodium Oxalate Extra Pure is a high-purity, white crystalline powder widely used as a primary standard in analytical chemistry, particularly for titrations involving potassium permanganate. It serves as a reducing agent and precipitant for metal ions, with additional applications in chemical synthesis and textile processing. The compound requires careful handling due to its irritant properties and should be stored away from oxidizing agents in a dry environment. Sodium Oxalate Extra Pure’s stable nature and moderate solubility make it valuable for precise laboratory applications.
Sodium Oxalate Extra Pure
PRIMARY USES
Analytical Reagent & Laboratory Applications:
• Used as a primary standard for standardizing potassium permanganate solutions in titrations
• Employed in quantitative analysis as a reducing agent
• Acts as a precipitating agent for calcium and other metal ions
Chemical Manufacturing:
• Intermediate in synthesis of pharmaceuticals and chemicals
• Used in metal cleaning and bleaching processes
Pharmaceutical Industry:
• Used in the preparation of oxalate salts for medical formulations
SECONDARY USES
Food Industry:
• Occasionally used as an acidity regulator (in very controlled amounts)
Textile Industry:
• Used in dyeing and bleaching processes as a complexing agent
- Basic Identification Attributes
• Chemical Name: Sodium Oxalate
• CAS Number: 62-76-0
• HS Code: 2915.41.00
• Molecular Formula: Na₂C₂O₄
• Synonyms:
- Disodium oxalate
- Oxalic acid disodium salt
- Physical & Chemical Properties
Physical State: Solid, crystalline powder
• Color & Odor: White, odorless
• Melting Point: 390 °C (decomposes)
• Boiling Point: Decomposes before boiling
• Density: 2.26 g/cm³
• Solubility:
- Moderately soluble in water (about 3.9 g/100 mL at 20 °C)
- Insoluble in ethanol and ether
• pH Level: Slightly acidic to neutral in aqueous solution
• Vapor Pressure: Negligible
• Flash Point: Non-flammable
- Safety & Hazard Attributes
Hazard Class (GHS Classification):
- Acute toxicity (oral) Category 4
- Skin irritation Category 2
- Eye irritation Category 2A
• NFPA Ratings: - Health: 2
- Flammability: 0
- Reactivity: 1
• Exposure Limits: - Avoid inhalation of dust
• Reactivity: - Stable under normal conditions
- Reacts with strong oxidizers
- Storage & Handling Attributes
Storage Conditions:
- Store in a cool, dry, well-ventilated area
- Keep container tightly closed
• Incompatible Materials: - Strong oxidizing agents
• Container Type: - Plastic or glass containers
• Shelf Life: - Stable if stored dry and sealed
• Special Handling Requirements: - Use gloves and eye protection
- Avoid dust generation
- Regulatory & Compliance Attributes
Regulatory Status:
- Listed under REACH and OSHA inventories
- Approved for laboratory use
• Transportation Restrictions: - Not classified as hazardous for transport
• Waste Disposal Method: - Dispose in accordance with local environmental regulations
- Environmental & Health Impact
Ecotoxicity:
- Low toxicity to aquatic life
• Persistence in Environment: - Biodegrades slowly; inorganic salt
• Carcinogenicity/Mutagenicity: - Not classified as carcinogenic or mutagenic
• Biodegradability: - Inorganic, not biodegradable but environmentally low impact
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
• Wear chemical-resistant gloves
• Use safety goggles or face shield
• Wear protective clothing
• Use dust mask if powder is handled
Handling:
• Handle in well-ventilated area
• Avoid inhalation and contact with skin or eyes
• Wash hands after handling
Storage:
• Store in tightly sealed containers
• Keep away from strong oxidizers and moisture
FIRST AID MEASURES
Inhalation:
• Move to fresh air immediately
• Seek medical attention if respiratory irritation occurs
Skin Contact:
• Wash skin with soap and water
• Remove contaminated clothing
• Seek medical advice if irritation develops
Eye Contact:
• Rinse eyes with plenty of water for at least 15 minutes
• Seek medical attention if irritation persists
Ingestion:
• Rinse mouth thoroughly
• Seek medical attention immediately
FIRE FIGHTING MEASURES
Flammability:
• Non-flammable solid
Extinguishing Media:
• Use water spray, foam, dry chemical, or CO₂ extinguisher
Hazardous Combustion Products:
• May produce toxic oxides of carbon if heated strongly
Firefighter Protection:
• Wear full protective gear and self-contained breathing apparatus (SCBA)