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Chemical Name: 4-Amino-N,N-Dimethylaniline Sulfate
Common Names: Dimethyl-p-phenylenediamine sulfate
Formula: C8H12N2•H2SO4
Appearance: Off-white to light gray powder
Odor: Little to none in solid state
Health Hazards: Skin, eye, and respiratory irritant. Potentially harmful if swallowed or inhaled. May cause methemoglobinemia, leading to cyanosis or anemia. Prolonged exposure can cause organ damage.
Environmental Hazards: Harmful for aquatic life if released. Risk of persistence in water and soil.
Signal Word: Warning
GHS Symbols: Exclamation mark, health hazard symbol
Main Component: 4-Amino-N,N-Dimethylaniline sulfate
Concentration: Over 97% (typical for analytical-grade material)
CAS Number: 536-46-9
Inhalation: Remove to fresh air, seek medical attention if breathing feels difficult. Oxygen therapy may be needed.
Skin Contact: Wash with running water and soap for at least 15 minutes. Remove contaminated clothing.
Eye Contact: Flush eyes thoroughly with water for at least 15 minutes. Medical attention necessary in case of irritation.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical help.
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide.
Specific Hazards: Toxic fumes may develop, including nitrogen oxides and sulfur oxides.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear.
Precautions: Evacuate area, avoid dust formation. Use proper respiratory protection.
Clean-Up: Sweep up carefully, avoid raising dust. Use wet methods if possible. Place waste in closed containers for disposal.
Environment: Prevent entry into drains and waterways.
Handling: Use in a well-ventilated area, wear suitable protective clothing and safety glasses. Avoid inhalation and ingestion.
Storage: Keep container tightly closed in a dry, cool, well-ventilated spot. Store away from acids, oxidizers, and ignition sources.
Engineering Controls: Work with local exhaust ventilation. Fume hoods recommended for open handling.
Personal Protection: Chemical-resistant gloves, protective clothing, safety goggles. Use an approved respirator during dusty work or accidental release.
Hygiene: Always wash hands after use, even after removing protective gloves.
Appearance: Crystalline to powder
Color: Off-white or grayish
Melting Point: Around 170 to 180°C (decomposes)
Solubility: Soluble in water
Odor: Minimal
pH (1% solution): Mildly acidic
Vapor Pressure: Non-volatile at room temperature
Chemical Stability: Stable under recommended storage. May decompose with moisture or high heat.
Reactions: Incompatible with oxidizing agents and strong acids. Can form hazardous byproducts upon decomposition (especially nitrogen oxides or sulfur oxides).
Hazardous Decomposition: Ammonia, sulfur oxides, nitrogen oxides.
Acute Effects: Can irritate eyes, skin, and respiratory tract. Reports describe headaches, dizziness, weakness, and possible cyanosis due to methemoglobinemia.
Chronic Effects: Potential for kidney, liver, and blood damage in repeated exposure cases.
Routes of Entry: Inhalation, ingestion, skin or eye contact.
Information in Literature: Documented toxicity in animal studies, with symptoms linked to hemoglobin disruption.
Environmental Toxicity: Detrimental to aquatic life even in low concentrations. Persistence in water, potential to bioaccumulate.
Degradability: Limited natural degradation without specialized water treatment.
Precautions: Prevent chemical spills or dust from entering waterways or sewage.
Waste Handling: Treat as hazardous chemical waste. Incineration under controlled conditions performs best. Consult local authorities about procedures.
Containers: Rinse and dispose of empty container as hazardous waste.
Spill Debris: All material used for cleaning up must be bagged and labeled for hazardous waste disposal.
Classification: Regulated as a hazardous substance.
Labels: Require Dangerous Goods labeling during transport.
Precautions: Ship in sealed packaging. Avoid contact with food or feed during transit.
Limitations: Restrictions often apply to air, land, and sea movement. Check local rules for specifics.
Global Listings: Substance regulations listed in several national and international hazardous material registers.
Control Thresholds: Limits on workplace exposure may apply in many regions.
Environmental Controls: Discharge, use, and disposal often face legal controls to protect health and the environment.
