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Product Name: Oxalic Acid Sodium Salt
Chemical Formula: Na2C2O4
Synonyms: Disodium oxalate, Sodium ethanedioate
CAS Number: 62-76-0
Recommended Use: Used in chemical analysis, metal cleaning, and as a reducing agent
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Emergency Overview: White crystalline solid, odorless, exposure routes include inhalation, ingestion, and skin or eye contact
GHS Classification: Acute Toxicity Oral (Category 3), Skin Irritation (Category 2), Eye Irritation (Category 2A), Specific Target Organ Toxicity (Single Exposure, Category 3)
Signal Word: Danger
Hazard Statements: Toxic if swallowed, may cause irritation to skin and eyes, may cause respiratory tract irritation, prolonged or repeated exposure can cause kidney damage
Precautionary Statements: Avoid breathing dust, wash thoroughly after handling, wear protective gloves, eye protection, and respiratory protection as necessary
Hazard Symbols: Skull and crossbones, exclamation mark
Chemical Name: Disodium Oxalate
Synonyms: Sodium oxalate, Disodium ethanedioate
CAS Number: 62-76-0
EC Number: 200-561-1
Concentration: >99%
Impurities: Trace water (<0.5%), negligible inorganic salts
Inhalation: Move affected person to fresh air, keep at rest, seek medical attention for any difficulty breathing or persistent discomfort
Skin Contact: Remove contaminated clothing, wash skin immediately with soap and plenty of water, seek medical attention if irritation develops
Eye Contact: Flush eyes thoroughly with water for at least 15 minutes, lift eyelids to ensure effective rinsing, seek immediate medical attention
Ingestion: Rinse mouth, never induce vomiting, seek immediate medical attention, provide medical personnel with product label if possible
Most Important Symptoms: Burning sensation, coughing, shortness of breath, nausea, vomiting, abdominal pain, signs of hypocalcemia in severe poisoning
Notes to Physician: Treat symptomatically, monitor for kidney effects and calcium imbalance, maintain patient under observation
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide
Unsuitable Extinguishing Media: Do not use strong water jets
Specific Hazards: Thermal decomposition releases toxic fumes, including carbon monoxide, carbon dioxide, sodium oxides
Protective Equipment: Firefighters need self-contained breathing apparatus and full protective gear
Explosion Hazards: Dust may form explosive mixtures with air in enclosed spaces
Special Procedures: Cool exposed containers using water spray, avoid contamination of water sources, prevent fire-fighting run-off from entering drains
Personal Protection: Evacuate area, use suitable respirator, gloves, and goggles, avoid contact with substance, ensure good ventilation
Environmental Precautions: Prevent from entering drains, sewers, or watercourses, notify local authorities if large quantities enter aquatic systems
Spill Cleanup: Collect spillage using a contained method — use non-sparking tools, sweep up and place in container for disposal, ventilate area and wash site after material pickup
Decontamination: Wash contaminated surfaces thoroughly, dispose of wash water according to local requirements
Disposal of Spill: Keep material in tightly closed, properly labeled containers for approved disposal
Handling: Avoid breathing dust, keep container tightly closed, use only in well-ventilated areas, wear suitable PPE (gloves, goggles, dust mask), prevent contact with skin, eyes, and clothing, handle away from incompatibles such as oxidizing agents and strong acids
Storage: Store in a cool, dry, well-ventilated place, keep away from direct sunlight and heat sources, ensure containers are labeled and sealed, store away from food or animal feed, maintain segregation from acids and oxidants
Incompatibilities: Strong acids, oxidizing agents, certain metals (especially aluminum, zinc)
Occupational Exposure Limits: No established OEL or TLV, handle with caution based on potential toxicity
Engineering Controls: Use systems such as local exhaust ventilation or containment to reduce airborne exposure
Personal Protection Equipment: Wear chemical-resistant gloves, safety goggles or face shield, long-sleeved clothing or coveralls
Respiratory Protection: Use dust masks or respirators when airborne exposure cannot be avoided
Hygiene Measures: Wash hands and face after handling, do not eat, drink, or smoke in work area, remove contaminated clothing and wash before reuse
Appearance: White, odorless crystalline powder
Molecular Weight: 134.00 g/mol
Boiling Point: Decomposes before boiling
Melting Point: ~250°C (decomposes)
Solubility: Soluble in water (<10 g/100 mL at 25°C), insoluble in alcohol
pH (1% solution): 7 - 10
Vapor Pressure: Not available (negligible under ambient conditions)
Density: About 2.34 g/cm³
Odor Threshold: Not applicable
Flash Point: Not applicable
Chemical Stability: Stable under normal temperatures and pressures
Reactivity: Reacts with strong acids and oxidizers, liberates oxalic acid in the presence of acids
Hazardous Reactions: Can react with metals and acids to release toxic fumes
Decomposition Products: Releases carbon monoxide, carbon dioxide, sodium oxides during thermal decomposition
Conditions to Avoid: Excess heat, incompatible substances, moisture, direct sunlight
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: LD50 (oral, rat): 375 mg/kg
Symptoms: Irritation of respiratory system, mouth and throat burning, nausea, vomiting, possible renal impairment, potential hypocalcemia
Chronic Effects: Kidney damage, systemic toxic effects with prolonged exposure
Carcinogenicity: Not classified as carcinogenic to humans by IARC, ACGIH, NTP, or OSHA
Target Organs: Kidneys, central nervous system
Sensitization: No data indicating sensitization effects
Mutagenicity: Not classified as mutagenic
Ecotoxicity: Harmful to aquatic life with long-lasting effects, potential for adverse impact in aquatic ecosystems
Mobility: High water solubility, may spread readily in water bodies
Persistence and Degradability: Substance degrades in the environment to oxalic acid and sodium compounds, persistence in low-oxygen environments expected
Bioaccumulation: Not expected to bioaccumulate significantly
Aquatic Toxicity: LC50 (fish, 96h): 835 mg/L
Other adverse effects: Releases oxalate ions that can disturb calcium metabolism in aquatic species
Waste Treatment Methods: Collect in appropriate, labeled containers for chemical waste, do not flush into surface water or sewage systems
Disposal of Product: Dispose of in accordance with local, regional, and national regulations, incineration in authorized facility recommended
Disposal of Packaging: Contaminated packaging must be treated as hazardous waste, rinse thoroughly before disposal or recycle if permitted
Special Precautions: Consult with a licensed waste disposal contractor on preferred disposal method, do not mix with incompatible waste
UN Number: 3288
UN Proper Shipping Name: Toxic solid, inorganic, n.o.s. (contains Sodium oxalate)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Label Required: Toxic (skull and crossbones symbol)
Marine Pollutant: Not classified as a marine pollutant
Transport Precautions: Keep containers tight and upright, avoid generation of dust during handling and loading
Emergency Response Guide Number: 154
OSHA Status: Regulated as a hazardous substance due to acute oral toxicity
TSCA Inventory: Listed
SARA Title III, Sections 302/304: Not listed as an extremely hazardous substance
SARA Title III, Section 313: Not subject to reporting requirements
RCRA Status: Not listed as hazardous waste, but may be regulated based on toxicity characteristics
REACH Status: Registered under REACH regulation for import and use in the EU
Canada (DSL/NDSL): Listed
WHMIS Classification: Class D2B (Toxic material causing other toxic effects)
Other Regulations: Check applicable local and regional chemical control laws for specific use restrictions or additional requirements
