Product Name: 4-Nitro Aniline-2 Sulfonic Acid
Chemical Formula: C6H6N2O5S
CAS Number: 96-93-5
Other Identifiers: 2-Sulfo-4-nitroaniline, p-Nitroaniline-2-sulfonic acid
Intended Use: Intermediate for dyes, research, specialty chemical synthesis
Supplier Details: Manufacturer or distributor contact information as found on supply packaging
Emergency Contact: National poison control center, local emergency number
GHS Classification: Acute toxicity (oral and inhalation); Skin irritation; Eye irritation
Hazard Statements: Toxic if swallowed or inhaled; Causes skin and eye irritation; May cause respiratory irritation
Pictograms: Exclamation mark, Skull and crossbones
Signal Word: Danger
Precautionary Statements: Avoid breathing dust or fumes; Use protective equipment; Wash exposed skin thoroughly after use; Do not eat, drink, or smoke during handling
Chemical Name: 4-Nitro Aniline-2 Sulfonic Acid
Synonyms: 2-Sulfo-4-nitroaniline
CAS Number: 96-93-5
Concentration: Greater than 95% by weight
Impurities: May include trace amounts of related aromatic sulfonic or nitro compounds
Inhalation: Remove to fresh air, keep person warm and at rest, obtain immediate medical attention if breathing becomes difficult
Skin Contact: Wash skin with large volumes of water and mild soap, remove contaminated clothes, seek medical advice if irritation persists
Eye Contact: Rinse with clean water for at least 15 minutes, lift eyelids periodically, seek medical help quickly
Ingestion: Rinse mouth, never induce vomiting, obtain medical attention without delay
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, or foam; avoid water if possible because runoff may cause environmental harm
Specific Hazards: Decomposition forms toxic fumes of nitrogen oxides and sulfur oxides, may form explosive dust-air mixtures
Protective Equipment for Firefighters: Use self-contained breathing apparatus and full chemical protective clothing
Special Procedures: Cool nearby containers with water spray, avoid inhaling fumes
Personal Precautions: Put on appropriate personal protective gear including respirator, goggles, gloves
Environmental Precautions: Block entry to sewers or waterways, prevent soil contamination
Methods for Cleanup: Sweep up carefully to avoid dust generation, place in closed container for disposal, ventilate area, wash spill site after material pick-up
Handling: Handle in well-ventilated areas, avoid contact with skin or eyes, prevent buildup of dust, keep containers tightly sealed
Storage: Store in cool, dry, well-ventilated area away from incompatible products like strong oxidizers and reducing agents
Incompatible Materials: Avoid contact with alkalis, acids, oxidants, reducing materials
Exposure Limits: No ACGIH or OSHA exposure limits established; minimize exposure through engineering controls
Engineering Controls: Use fume hood, local exhaust ventilation
Personal Protective Equipment: Wear chemical-resistant gloves, lab coat, goggles or face shield, respirator if airborne concentrations are high
Hygiene Measures: Wash hands after handling, remove contaminated clothing before eating, drinking, or smoking
Physical State: Solid (powder or crystalline)
Color: Yellow to orange
Odor: Odorless or slightly aromatic
Melting Point: Around 190-195 °C (374-383 °F)
Solubility: Soluble in water, sparingly soluble in organic solvents
Vapor Pressure: Negligible at room temperature
Density: Approximately 1.68 g/cm³
pH (1% soln): Acidic
Partition Coefficient: Not available
Flash Point: Not flammable under normal conditions
Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: Moisture, high temperatures, open flames
Materials to Avoid: Strong oxidizers, reducers, bases, and acids
Hazardous Decomposition Products: Nitrogen oxides, sulfur oxides, carbon oxides
Polymerization: Will not occur if used as directed
Acute Toxicity: Harmful if swallowed or inhaled; LD50 (oral, rat) data available from published sources report significant toxicity
Skin Irritation: Causes irritation after prolonged skin contact
Eye Effects: Provokes serious irritation
Sensitization: Not proven, allergic reactions possible in some individuals
Chronic Effects: Prolonged or repeat exposure may damage blood, liver, or kidneys
Carcinogenicity: Not listed by NTP, IARC, or OSHA as a carcinogen
Mutagenicity & Reproductive Toxicity: No conclusive human data; laboratory studies indicate potential genetic effects at high doses
Toxicity to Aquatic Life: Expected to be toxic to aquatic organisms based on structure and analog data
Persistence and Degradability: Likely to persist in environment, slow degradation
Bioaccumulative Potential: Low to moderate; data limited
Mobility in Soil: May leach into groundwater from spills; caution advised
Other Adverse Effects: No data on major environmental impacts like ozone depletion or photochemical smog potential
Waste Disposal Methods: Dispose as hazardous chemical waste in accordance with local, national, and international regulations; do not discharge into drains
Contaminated Packaging: Wash before reuse or dispose of together with chemical waste
Special Precautions: Handle under supervision of trained personnel, label all chemical waste clearly, keep incompatible wastes separate
UN Number: 2811 (for toxic solid, organic, n.o.s.)
Proper Shipping Name: Toxic solid, organic, n.o.s. (contains 4-Nitro Aniline-2 Sulfonic Acid)
Transport Hazard Class: 6.1 (toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant if spilled; avoid transfer near water bodies
Special Transport Precautions: Keep containers closed, well packed, provide shipping documents in accordance with regulations
OSHA: Hazardous chemical under Hazard Communication Standard
EPCRA: Reportable quantity not established, consider site-specific regulation
TSCA: Listed in US Toxic Substances Control Act inventory
REACH Status: Registration status varies, contact supplier for details
SARA: Not subject to Section 313 reporting
Other Regulations: May require registration or reporting under state or federal environmental laws; always check with local authorities before handling or disposal
