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Product Name: Sodium Nitrite
Chemical Formula: NaNO2
CAS Number: 7632-00-0
Recommended Use: Food preservative, corrosion inhibitor, laboratory reagent, synthetic intermediate
Synonyms: Nitrous acid, sodium salt
Supplier: Manufacturer and distributor contact info should appear on the label
Emergency Contact: Refer to country-specific emergency numbers, such as Poison Control Centers in the United States or the European Emergency Number
Acute Health Hazards: Ingestion causes poisoning, possible lowering of blood pressure, headache, dizziness, cyanosis, possible shock or death
Chronic Health Hazards: Long-term exposure may affect blood and organs
Routes of Exposure: Inhalation, ingestion, skin, eyes
Label Elements: GHS classification - Oxidizing solid, Category 3; Acute toxicity, oral, Category 3
Hazard Symbols: GHS07 (exclamation mark), GHS03 (flame over circle)
Precautionary Statements: Avoid breathing dust, do not eat, drink, or smoke when using, use protective gear, wash hands after handling
Signal Word: DANGER
Chemical Name: Sodium Nitrite
Concentration: Typically above 97% as supplied commercially
Other Components: Impurities at very low levels, often not specified
Other Additives: Additives not commonly present in pure chemical formulation
CAS Number: 7632-00-0
Inhalation: Move away from dust source, get fresh air, call for medical advice if symptoms occur
Skin Contact: Remove contaminated clothing, wash skin thoroughly with water and soap, seek medical attention for irritation or allergic reaction
Eye Contact: Immediately rinse eyes with water for at least 10-15 minutes, keep eyelids apart, seek medical help
Ingestion: Do not induce vomiting, give 1-2 glasses of water, seek medical attention urgently, symptoms may be delayed
Most Important Symptoms: Shortness of breath, blue lips or fingernails (cyanosis), confusion, rapid heart rate
Suitable Extinguishing Media: Water spray, foam, dry chemical, CO2
Unsuitable Extinguishing Media: Avoid use of straight streams of water
Hazards From Fire: Releases toxic gases including nitrogen oxides, sodium oxides
Fire-fighting Instructions: Use self-contained breathing apparatus, full protective clothing, prevent runoff into sewer
Other Advice: Keep containers cool using spray if exposed to fire risk, sodium nitrite supports combustion, avoid breathing dust and fumes
Personal Precautions: Evacuate non-essential personnel, ventilate area, wear protective equipment
Environmental Precautions: Prevent release into drains, soil, surface water
Method of Cleaning Up: Sweep up carefully, use spark-proof tools, avoid creating dust, place in designated containers for disposal, wash area with water after material pickup
Spill Response: Report large spills to emergency services, follow local regulations for hazardous waste cleanup
Handling: Use local exhaust ventilation, avoid breathing dust, do not eat, drink, or smoke near area, wear appropriate PPE, handle with care to prevent container damage
Hygiene Practices: Wash hands and face after handling, remove contaminated clothing, clean protective equipment regularly
Storage Conditions: Store in cool, dry, well-ventilated area, keep away from incompatible substances like reducing agents, acids, organic materials, ammonium salts, nitrites can react and form toxic gases
Container Materials: Store in tightly closed corrosion-resistant containers, label all storage clearly
Storage Temperature: Standard ambient temperature, avoid heat and direct sunlight
Occupational Exposure Limits: OSHA PEL: Not set; ACGIH TLV: 0.2 mg/m3 (as nitrite, inhalable fraction and vapor)
Engineering Controls: Provide local exhaust ventilation, safety showers, eyewash stations
Personal Protection Equipment: Chemical-resistant gloves, lab coat or protective clothing, safety goggles or face shield, respiratory protection for dusts and mists
Environmental Exposure Controls: Prevent leakage and emissions, follow pollution control protocols
Special Requirements: Thorough training for all personnel handling sodium nitrite, regular health monitoring recommended in high-exposure settings
Appearance: White to slightly yellowish crystalline powder or granules
Odor: Odorless
Odor Threshold: Not applicable
pH: 8-9 (10% aqueous solution)
Melting Point: 271°C (520°F)
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Not combustible, acts as oxidizer
Vapor Pressure: Not volatile
Vapor Density: Not available
Solubility in Water: 84.8 g/100 mL (20°C)
Partition Coefficient (n-octanol/water): Not applicable
Auto-ignition Temperature: Not self-igniting
Decomposition Temperature: 320°C
Molecular Weight: 69.00
Chemical Stability: Stable under recommended storage, decomposes at elevated temperatures
Reactivity: Strong oxidizer, may react rapidly with reducing agents, organic matter, ammonium compounds, acids
Incompatible Materials: Ammonium salts, acids, cyanides, thiocyanates, combustibles
Hazardous Decomposition Products: Nitrogen oxides, sodium oxides, toxic fumes
Possibility of Hazardous Reactions: May lead to fire or explosion if in contact with incompatible materials
Conditions to Avoid: Excessive heat, moisture, exposure to light, contaminants that could trigger reactions
Acute Toxicity (Oral): LD50 (rat): ~180 mg/kg
Skin Corrosion/Irritation: Mild skin irritant
Serious Eye Damage/Irritation: Possible eye irritant
Respiratory or Skin Sensitization: Not a known sensitizer
Germ Cell Mutagenicity: Not classified, some studies show DNA damage in animal models
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen, high exposures linked to increased cancer risk in some studies
Reproductive Toxicity: No clear data on human reproductive effects
Specific Target Organ Toxicity (Single Exposure): Blood, may cause methemoglobinemia
Specific Target Organ Toxicity (Repeated Exposure): Anemia, organ dysfunction at high doses
Aspiration Hazard: No direct aspiration hazard
Symptoms of Exposure: Blue/gray skin or lips, headache, fatigue, confusion, rapid heartbeat
Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Aquatic Toxicity (LC50): Fish 0.19-0.28 mg/L (96 h, Oncorhynchus mykiss)
Persistence and Degradability: Rapidly converted in soil and water, possible residual toxicity
Bioaccumulative Potential: Low likelihood of bioaccumulation in aquatic species
Mobility in Soil: High mobility, soluble in water
Other Adverse Effects: Nitrite ions can contribute to eutrophication, nitrate formation, ground and drinking water contamination concerns
Additional Notes: Introduction of sodium nitrite into surface waters regulated in most developed jurisdictions, environmental monitoring often required at larger facilities
Waste Disposal Methods: Collect residues in labeled containers, avoid flushing down the drain or releasing to environment, handle as hazardous waste
Treatment Methods: Consult with licensed waste disposal facilities, follow all local, regional, national, and international regulations
Packaging Disposal: Rinse containers before disposal, do not reuse packaging for food or feed, send to chemical waste stream
Regulatory Requirements: Observe chemical waste handling rules, report larger incidents to environmental authorities
UN Number: UN1500
Proper Shipping Name: Sodium nitrite
Transport Hazard Class: 5.1 (Oxidizing agent)
Packing Group: III
Maritime Transport: IMDG code regulated, same hazard category
Air Transport: IATA-DGR regulated, cargo aircraft recommended, passenger aircraft limits apply
Road/Rail Transport: Regulated under ADR/RID, drivers must be trained in handling hazardous material
Special Precautions: Segregate from acids, reducing agents, ammonium salts, keep away from food and feeds
US Regulations: SARA Title III Section 313 listed, RQ 100 lbs., TSCA inventory listed
EU Regulations: Classified under CLP Regulation (EC) No 1272/2008 as Ox. Sol. 3, Acute Tox. 3; REACH registered
Canada: WHMIS classification: D1A (very toxic), C (oxidizing)
Australia: Listed on AICS, hazardous according to Safe Work Australia
Other International: Significant behavior in accordance with GHS standards, reference to national occupational and environmental regulation is essential for site compliance
Labeling Requirements: Containers must carry hazard pictograms, risk phrases, precautions in local language for use area
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
