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Chemical name: Adipic Acid Dihydrazide
Chemical formula: C6H14N4O2
Common uses: Crosslinking agent in coatings, resins, adhesives, specialty polymers
Appearance: White crystalline powder
Odor: Absent or faint
Solubility: Water solubility distinguishes it from some other chemical agents
CAS number: 1071-93-8
Physical hazards: Not flammable under normal storage and handling; dust generation during transfer or mixing remains the most immediate physical concern
Health risks: Skin irritation, eye irritation, possible respiratory tract irritation if dust is inhaled
Environmental impact: Minor aquatic toxicity, primarily when released in larger amounts that reach surface water
Signal words: Irritant
Active ingredient: Adipic Acid Dihydrazide
Purity: Often >98% in industrial-grade supplies
Impurities: Trace hydrazine, water (<2%)
Additives: None noted under standard usage
Eye contact: Immediate and prolonged flushing with clean water recommended
Skin contact: Prompt removal of contaminated clothing and thorough washing with soap and water
Inhalation: Moving to fresh air and seeking medical attention for persistent symptoms
Ingestion: Rinsing mouth and seeking medical evaluation, but avoiding induction of vomiting
Suitable extinguishing media: Water spray, dry chemical, foam; carbon dioxide used safely in confined spaces
Hazards during fire: Thermal decomposition generates nitrogen oxides and carbon oxides, which pose inhalation risk for firefighters
Protective equipment: Self-contained breathing apparatus and full protective clothing advised for responders
Personal precautions: Minimizing dust generation, ventilating the area
Spill cleanup: Using damp methods (wet wiping or gentle washing), collecting residue in sealable, labelled containers for proper waste management
Disposal: Avoiding drains and relying on professional waste disposal systems
Safe handling: Protective gloves, goggles, and dust mask limit skin and respiratory exposure
Storage: Dry, well-ventilated facility, away from incompatible materials such as strong oxidizers and acids; original, tightly closed containers prevent moisture ingress
Temperature sensitivity: Stable at ambient temperatures; avoiding excessive heat, sunlight, and ignition sources
Exposure limits: No occupational exposure limits set in major jurisdictions; minimizing airborne particles cuts down inhalation risks
Respiratory protection: Dust mask or particulate respirator in poorly-ventilated or high-dust work zones
Eye and skin protection: Chemical-resistant gloves and tight-fitting safety goggles
Engineering controls: Local exhaust ventilation creates a safer workspace
Physical state: Crystalline powder
Melting point: 178-182°C
Boiling point: Decomposes before boiling
Vapor pressure: Negligible
Solubility: Soluble in water
Stability: Chemically robust under normal storage
Chemical stability: Stable under recommended storage and handling
Reactivity with other materials: Avoiding strong oxidizers and acids, since these increase the likelihood of hazardous reactions
Thermal decomposition products: Nitrogen oxides, carbon oxides, and traces of hydrazine under high heat
Acute toxicity: Low oral and dermal toxicity based on data from animal exposure
Skin and eye effects: Irritation likely from repeated contact
Inhalation risks: Upper respiratory discomfort if inhaled as dust
Long-term risks: Data limited, but not recognized as carcinogenic by major authorities
Persistence: Slowly biodegradable in soil and water
Toxicity to aquatic life: Minimal at environmental concentrations typical in responsible storage and use
Bioaccumulation: Low potential under current evidence
Waste treatment: Standard industrial or chemical waste collection; avoiding landfill and non-industrial incineration
Discharge to environment: Not recommended; following local environmental controls crucial for compliance
Container disposal: Triple rinsing and puncturing before recycling or incineration in approved facilities
UN classification: Product not classed as hazardous for land or sea transport under most regulatory regimes
Packing: Sealed, moisture-proof drums or bags for risk mitigation
Labeling: Clear hazard communication for transport handlers
OSHA status: Not listed as hazardous under the Hazard Communication Standard
TSCA status: Included in the inventory
REACH registration: May fall under exempted status in the EU due to tonnage or application type
Local regulations: Vary by region; checking for restrictions or reporting thresholds before import, export, or disposal remains critical
