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Product Name: Diazoaminobenzene
Synonyms: 1,2-Diphenyldiazene, Diazobenzenamine
Chemical Formula: C12H11N3
CAS Number: 136-35-6
Recommended Use: Laboratory chemical, research, dye intermediate
Manufacturer: Manufacturer details supplied on request due to industry norms; contact regional representative for specific details
Telephone Number for Emergency: CHEMTREC: 1-800-424-9300 (USA)
Email Address: Provided by supplier or laboratory.
Classification: Acute Toxicity (Oral) Category 4; Carcinogenicity Category 2; Skin and Eye Irritation Category 2
Signal Word: Warning
Hazard Statements: Harmful if swallowed; Suspected of causing cancer; Causes skin and eye irritation
Pictograms: Skull & Crossbones; Exclamation Mark; Health Hazard
Precautionary Statements: Wear protective gloves, protective clothing, and eye/face protection; Avoid breathing dust or fumes; Wash exposed skin thoroughly after handling; Do not eat, drink, or smoke when using this product
Emergency Overview: Dust or powder may cause irritation or allergic reaction. Chronic exposure may increase the risk of certain cancers.
Other Hazards: Fine particles can present explosive dust hazard under certain conditions; environmental release has risks to aquatic habitats.
Substance: Diazoaminobenzene
CAS Number: 136-35-6
Concentration: >99% by weight
Impurities: Trace aniline derivatives or by-products depending on the synthetic route, typically under 1%
Other Components: None intentionally added
General Advice: Get medical attention if symptoms persist or in cases of doubt
If Inhaled: Move to fresh air; seek immediate medical attention if breathing difficulty occurs
If On Skin: Remove contaminated clothing, rinse skin thoroughly with soap and water for at least 15 minutes; seek medical help if irritation develops
If In Eyes: Rinse cautiously with plenty of water for several minutes; remove contact lenses if present and easy to do; continue rinsing and get prompt medical attention
If Swallowed: Rinse mouth, do not induce vomiting, provide water only if person is conscious; get medical advice without delay
Most Important Symptoms: Irritation, allergic skin reaction, headache, nausea; long-term risks include carcinogenic effects
Note for Physicians: Treat symptomatically and provide supportive care; monitor for delayed effects
Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam; avoid high-pressure water jets
Hazardous Combustion Products: Nitrogen oxides, carbon monoxide, aniline, irritating and toxic fumes
Specific Hazards: Dust may form explosive mixture with air; thermal decomposition can release hazardous gases
Protective Equipment: Firefighters should wear self-contained breathing apparatus with full face shield and protective clothing
Special Procedures: Isolate fire area, prevent runoff from entering drains or watercourses; cool affected containers with water spray
Additional Notes: Remove all ignition sources from vicinity; evacuate personnel to a safe distance
Personal Precautions: Ventilate area; wear suitable protective equipment including respirator, gloves, and goggles; avoid inhalation and skin contact
Environmental Precautions: Prevent entry into drains, sewers, and waterways; inform local authorities if significant release occurs
Methods for Cleaning Up: Sweep up spill without generating dust, place in properly labeled container for disposal; decontaminate area using wet cleaning method if possible
Handling Spill: Use spark-proof tools; work upwind or with local exhaust ventilation; avoid dry sweeping
Decontamination: Wash surfaces with detergent and water; properly ventilate to avoid buildup of vapors or dust
Handling: Use only with adequate ventilation; avoid creation of dust; wear protective gloves and clothing; handle in accordance with good chemical hygiene and safety practices; keep away from heat, sources of ignition, and incompatible substances
Storage Conditions: Store in cool, dry, well-ventilated area in tightly closed containers; protect from direct sunlight and moisture
Incompatible Materials: Strong acids, strong bases, strong oxidizing agents; store away from food and beverages
Specific Procedures: Ground and bond containers when transferring material; use spark-proof equipment
Container Requirements: Non-reactive materials such as glass, polypropylene, or polyethylene recommended
Special Advice: Regularly inspect storage containers for signs of leaks or damage
Occupational Exposure Limits: Not established specifically for diazoaminobenzene; minimize exposure as much as possible given toxicology
Engineering Controls: Use fume hood or local exhaust where dust or fumes may be generated; enclose processes if feasible
Personal Protective Equipment: Approved respirator (where exposure is likely), chemical-resistant gloves (nitrile or neoprene), goggles or face shield, lab coat or Tyvek coverall
Hygiene Practices: Wash hands and forearms thoroughly after handling, before meals or breaks; do not eat, drink, or smoke in work areas
Environmental Exposure Controls: Regularly inspect exhaust systems; filter and treat waste air as required; collect effluent for approved disposal
Appearance: Yellow to orange crystalline solid
Odor: Slightly aromatic
Odor Threshold: Not available
pH: Not applicable (solid at room temperature)
Melting Point/Range: 125–130°C
Boiling Point: Decomposes before boiling
Flashpoint: 140°C (closed cup, approximate)
Evaporation Rate: Not determined
Flammability: May be combustible as dust
Upper/Lower Flammability Limits: Not determined
Vapor Pressure: Negligible at 20°C
Relative Density: 1.25 g/cm³ (approximate)
Solubility: Slightly soluble in water; soluble in alcohol, ether, acetic acid
Partition Coefficient (n-octanol/water): Not determined
Auto-Ignition Temperature: Not determined
Decomposition Temperature: >150°C; releases toxic fumes
Explosive Properties: Dust can be explosive under certain conditions
Oxidizing Properties: Not classified as oxidizer
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Reacts violently with strong acids, oxidizers
Conditions to Avoid: Heat, open flame, sparks, sunlight, incompatible substances
Incompatible Materials: Strong acids, alkalis, oxidizing agents, hypochlorites
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, aniline, ammonia, toxic particulate matter
Polymerization: Does not undergo hazardous polymerization
Special Precautions: Avoid contact with incompatible substances and conditions favoring dust accumulation
Acute Toxicity: Harmful if swallowed; estimated LD50 (oral, rat): about 300 mg/kg
Skin Corrosion / Irritation: Irritant; repeated exposure can cause dermatitis
Eye Damage/Irritation: Irritating to eyes; may cause conjunctivitis
Respiratory or Skin Sensitization: May cause allergic reactions after repeated contact
Carcinogenicity: IARC: Classified as possible human carcinogen (Group 2B); no conclusive human data but structure-activity relationship suggests concern
Mutagenicity: Data limited; some in-vitro tests positive
Reproductive Toxicity: Not enough data to draw firm conclusions
STOT (Specific Target Organ Toxicity): High exposures could potentially affect blood (due to possible aniline formation), liver
Symptoms of Overexposure: Nausea, headache, dizziness, skin or eye inflammation, allergic dermatitis
Toxicity to Aquatic Life: Harmful to aquatic organisms, may cause long-term effects in aquatic environment
Persistence and Degradability: Degradation in natural conditions is slow; persistent organic pollutant potential
Bioaccumulation Potential: May bioaccumulate in aquatic life due to moderate solubility in organics
Mobility in Soil: Expected to have low mobility in soil; binds to sediment and organic matter
Other Adverse Effects: Unknown breakdown products may be more toxic; avoid release into the environment
Special Environmental Precautions: Prevent spill or waste from entering surface or groundwater; treat effluent
Waste Disposal Methods: Dispose of in accordance with local, regional, national, and international regulations; hazardous chemical waste incineration recommended; do not flush into drains or natural water bodies
Container Disposal: Triple-rinse containers and render unusable before discarding; follow hazardous waste labeling standards
Recycling or Reuse: Not suitable for recycling due to toxicity and contamination risks
Precautions for Disposal: Use only government-approved and properly permitted waste handlers; document disposal process
Other Disposal Recommendations: Incinerate in controlled high-temperature furnace with suitable gas cleaning apparatus
UN Number: Not assigned for small-scale research shipments; check with carrier for bulk transport
UN Proper Shipping Name: Not specifically classified; shipping as toxic solid, organic, n.o.s. may be required
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III (based on toxicity)
Marine Pollutant: Yes, as supporting data suggests risk to aquatic species
Special Transport Precautions: Pack in tightly closed, compliant containers; segregate from foodstuffs, strong oxidizers, acids, bases
Labeling: Toxic substance, Handle with care, Keep Away from Incompatible Materials
Transport Documentation: All shipments require MSDS included and compliant labeling; may need transport emergency cards
Further Details: Check IATA, IMDG, ADR regulations as applicable for air, sea, and road transit
OSHA Status: Regulated hazardous chemical
TSCA (USA): Listed
REACH (EU): Not fully evaluated; restrictions may apply
SARA Title III: Not specifically listed under Section 313, but similar compounds recognized toxic
California Proposition 65: Suspected to be listed or under review due to carcinogenic classification
Label Requirements: Appropriate hazard and precautionary statements as per GHS
WHMIS (Canada): Included under Class D2B - Toxic material causing other toxic effects
Other Regional Regulations: Refer to local guidelines; import/export may require permits or pre-notification
Industrial and Governmental Restrictions: Some countries regulate workplace exposure under carcinogen regulations or environmental dumping laws
