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Product Name: Azodicarbonamide
Chemical Formula: C2H4N4O2
CAS Number: 123-77-3
Manufacturer/Supplier: Name and contact info required by workplace
Recommended Use: Blowing agent in plastics, food additive (bread conditioner)
Emergency Phone Number: Local emergency service or supplier’s emergency line
Classification: Combustible dust, respiratory irritant, possible allergen
Health Hazards: Causes eye, skin, and respiratory tract irritation; possible sensitizer causing allergic reactions in some people
Warning Label: Irritant, respiratory hazard
GHS Signal Word: Warning
Hazard Statements: May cause allergy or asthma symptoms or breathing difficulties if inhaled; suspected carcinogen based on animal data
Precautionary Statements: Avoid breathing dust, wear protective gear, wash thoroughly after handling, take care during storage and transfer
Main Ingredient: Azodicarbonamide (purity: 95-100%)
Other Components: Trace impurities may include urea, biuret, semicarbazide
Chemical Family: Azodicarbonyl compounds
Appearance: Yellow to orange-red crystalline powder
Eye Contact: Flush eyes with water for at least fifteen minutes, lifting eyelids to remove particles; seek medical attention for continued irritation
Skin Contact: Remove contaminated clothing, wash skin with soap and water, monitor for irritation or rash
Inhalation: Move person to fresh air, give oxygen if breathing is difficult, seek medical help if symptoms develop
Ingestion: Rinse mouth, drink water, do not induce vomiting, get medical care if feeling unwell
Immediate Symptoms: Sneezing, coughing, eye redness, rash, headache in rare cases
Suitable Extinguishing Media: Dry chemical, CO2, foam, water spray for small fires
Fire Hazards: Decomposes at high temperatures releasing toxic gases (nitrogen oxides, carbon oxides, ammonia)
Protective Equipment: Full protective gear, self-contained breathing apparatus
Special Procedures: Use water spray to cool containers, move unburned material away, avoid inhalation of combustion products
Explosion Risk: Dust-air mixtures can ignite if concentrations accumulate and spark occurs
Personal Protection: Dust mask or respirator, gloves, safety goggles, protective clothing
Spill Cleanup: Avoid creating dust, sweep or vacuum with explosion-proof equipment, place in sealed containers
Environmental Protection: Prevent material from entering waterways or soil, notify local authorities in case of large spill
Decontamination: Wash affected area with water and detergent, ventilate area well
Handling: Work in ventilated area, minimize dust generation, avoid contact with skin, eyes, and clothing, use tools and avoid direct contact
Storage: Store in tightly closed containers, cool dry place, away from heat, sparks, and open flames
Conditions to Avoid: Exposure to heat, moisture, and incompatible substances like strong acids and oxidizers
Special Precautions: Post hazard signs in storage and work areas, maintain good housekeeping to prevent dust buildup
Exposure Limits: OSHA PEL: None established; ACGIH TLV: None established; recommended limit 0.3 mg/m³ as total dust
Engineering Controls: Local exhaust ventilation, process enclosure where possible, dust collection systems
Personal Protective Equipment: Dust respirator (NIOSH certified), chemical-resistant gloves, safety glasses or goggles, long sleeves, lab coat or apron
Hygiene Measures: Wash hands before eating or drinking, remove contaminated clothing, shower after handling
Monitoring Requirements: Air monitoring for dust levels in workplace may be required by regulation
Appearance: Orange to yellow crystalline powder
Odor: Slight odor, may smell faintly of ammonia
Melting Point: Decomposes before melting (approx. 200°C)
Density: 1.65 g/cm³
Solubility: Slightly soluble in water, more soluble in dimethyl sulfoxide (DMSO)
Vapor Pressure: Not volatile at ambient temperature
pH: Neutral (6.5-7.5) in suspension
Flash Point: Not easily flammable; dust poses combustion risk
Partition Coefficient: Not established for environmental mobility
Decomposition Temperature: 170°C or higher, releasing gases
Chemical Stability: Stable in dry conditions at room temperature
Conditions to Avoid: Excess heat, flames, humid conditions, incompatible chemicals
Incompatible Materials: Strong acids, strong oxidizers such as nitric acid and permanganates, reducing agents
Hazardous Decomposition: Nitrogen oxides, ammonia, other toxic gases
Polymerization: No hazardous polymerization expected under normal use
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Oral LD50 (rat) ~6400 mg/kg; inhalation may cause respiratory irritation, coughing, asthma-like symptoms
Chronic Effects: Possible occupational asthma, skin sensitization, allergies, mild carcinogenic effects in animal studies
Mutagenicity: Animal studies suggest limited genotoxicity
Carcinogenicity: IARC: Not classified as carcinogenic to humans; ongoing debate over long-term human exposure
Other Health Risks: Some breakdown products (e.g., semicarbazide) linked to reproductive and developmental toxicity in research
Aquatic Toxicity: Low toxicity to aquatic organisms at expected release concentrations
Mobility in Soil: Expected to have low mobility; not highly water-soluble
Persistence and Degradability: Degrades slowly under environmental conditions; breakdown speeds up with heat and sunlight
Bioaccumulative Potential: Not expected to bioaccumulate in aquatic or food chains
Environmental Precautions: Limit release to soil, groundwater, and surface water; report major releases to authorities
Waste Disposal: Dispose as hazardous chemical waste in accordance with local, regional, or national regulations
Container Disposal: Empty container thoroughly, triple rinse, avoid generating dust, puncture or crush before disposal
Recycling: Recycling not recommended due to contamination risk, incineration or secure landfill for large quantities
Special Instructions: Do not flush to sewer or allow contamination of natural water sources
UN Number: Not classified as dangerous for transport under ADR, IMDG, IATA
Transport Hazard Class: Not regulated, but dust precautions and clean packaging required
Packing Group: Not assigned
Marine Pollutant: Not classified
Shipping Method: Suitable for road, rail, sea, and air; secure packaging to prevent leaks and dust
US Regulations: Listed on TSCA Inventory, food use regulated by FDA; regulated as a hazardous material for workplace exposure
EU Regulations: REACH registered, food additive E927a in some countries, banned in bakery products in EU since 2005
Workplace Labeling: GHS hazard pictograms and statements required
Other Regulations: Canada DSL listed, not classed as controlled product under WHMIS but precautions needed for dust
Community Right to Know: Check local, state, and national reporting thresholds for hazardous chemicals
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
