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Product Name: Acid Red 73
Chemical Formula: C22H14N4Na2O7S2
CAS Number: 5413-75-2
Manufacturer/Supplier: Industrial chemical suppliers distribute this synthetic dye.
Use: Textile dyeing, paper coloring, ink production, laboratory research
Synonyms: Amaranth, Food Red 2, E123
Emergency Contact: Refer to supplier’s emergency number for transport and site incidents.
Classification: Eye irritant, skin irritant, suspected carcinogen based on animal testing
GHS Label Elements: Warning symbol, exclamation mark
Risk Phrases: Harmful if swallowed or inhaled, can irritate eyes and skin, potential cancer risk
Safety Phrases: Avoid inhalation and contact with eyes or skin, use only with appropriate safety gear
Most Important Hazards: Prolonged exposure can cause eye damage, allergic skin responses, negative health effects over time.
Chemical Identity: Acid Red 73
Concentration: Typically over 90 percent pure in commercial form
Impurities: May contain sodium chloride, inorganic salts, trace contaminants from manufacturing
Molecular Weight: 604.48 g/mol
Structure: Azo compound, aromatic rings, sulfonic acid sodium salts
Inhalation: Remove to fresh air, provide oxygen if breathing is difficult, seek medical attention if symptoms persist
Skin Contact: Wash thoroughly with soap and water for several minutes, remove contaminated clothing
Eye Contact: Rinse for at least 15 minutes with running water, keep eyelids open, obtain medical advice
Ingestion: Rinse mouth, drink plenty of water, never induce vomiting unless instructed by medical personnel, consult a physician
Notes to Physician: Treat symptomatically, monitor for allergic reactions or respiratory difficulty
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: Avoid direct high-pressure water streams, which may spread contamination
Hazardous Combustion Products: Emits oxides of carbon, nitrogen oxides, sulphur oxides, toxic fumes
Protective Equipment: Full protective gear and self-contained breathing apparatus; avoid inhalation of smoke or fumes
Fire/Explosion Hazards: Dye powder may form explosive dust-air mixtures under certain conditions, ventilate area thoroughly before fire-fighting
Personal Precautions: Use respiratory protection, chemical-resistant gloves, protective goggles; keep others away from the spill
Environmental Precautions: Prevent further leakage or entry to waterways, drains, or soil
Methods for Cleanup: Sweep up to avoid dust formation, collect in suitable containers for disposal, ventilate area, wash remainder with plenty of water
Special Considerations: Treat residues as hazardous waste, decontaminate tools and protective equipment after use
Safe Handling: Wear personal protection, avoid spills and inhalation of dust, use fume hoods or local exhaust
Storage Conditions: Store tightly closed in a well-ventilated, cool, dry place away from incompatible chemicals such as strong oxidizing agents
Incompatible Materials: Strong acids, strong bases, powerful oxidizers
Other Precautions: Use only with appropriate signage and trained personnel, comply with workplace exposure standards
Occupational Exposure Limits: No established OSHA or ACGIH limits for Acid Red 73; follow general dust exposure guidelines
Ventilation: Mechanical exhaust recommended to limit airborne concentrations
Personal Protection: Gloves impervious to chemicals, safety goggles, laboratory coats, dust masks or respirators when risk of dust exists
Hygiene Measures: Wash hands thoroughly before breaks and at end of workday, avoid eating or smoking in work area
Monitoring: Airborne dust monitoring in areas with heavy dye use or processing
Appearance: Dark red to violet powder
Odor: Odorless
Solubility: Highly soluble in water, limited solubility in organic solvents
Melting Point: Decomposes before melting
pH Value: Typically acidic in aqueous solutions
Other Properties: Stable at room temperature, sensitive to strong light and heat, forms intensely colored solutions
Vapor Pressure: Negligible
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Unreactive with most substances under usual conditions
Hazardous Reactions: Can react with strong oxidizers causing decomposition, may produce toxic gases on burning
Decomposition Products: Ammonia, nitrogen oxides, sulfur oxides, carbon monoxide, other hazardous gases
Polymerization: Will not spontaneously polymerize
Acute Toxicity: LD50 oral (rat): ranges from 8,000 to 17,000 mg/kg, indicating low acute toxicity; high doses may irritate gastrointestinal tract
Skin Irritation: Can cause sensitization or allergic contact dermatitis based on frequent contact
Eye Irritation: Dust and solutions can irritate or injure eyes
Chronic Effects: Animal studies link high long-term intake to cancer and organ damage; some countries limit food use
Routes of Exposure: Inhalation, oral, dermal, eye contact
Carcinogenicity: Classified as a possible human carcinogen by some agencies; ongoing regulatory review in food uses
Environmental Fate: Persists in water and soil, low biodegradability, mobile in aquatic environments
Ecotoxicity: Moderately toxic to aquatic organisms; can discolor waterways and harm fish, invertebrates
Bioaccumulation: Low potential for bioaccumulation in aquatic species
Degradation: Poorly broken down by sunlight or microorganisms, persistent pollutant
Other Risks: Uncontrolled releases contaminate water, sediment, and may disrupt wastewater treatment processes
Waste Treatment: Must handle as hazardous industrial waste
Disposal Method: Use licensed hazardous waste contractors for incineration or secure landfill disposal, follow local environmental laws
Container Disposal: Triple-rinse empty containers, puncture and send for approved disposal
Sewage Disposal: Do not discharge untreated dye solutions into drains or sewers
Additional Notes: Consult waste regulations specific to dye and colorant industries
UN Number: Not classified as dangerous for transport in most jurisdictions
Transport Hazard Class: Not regulated under ADR, IMDG, IATA
Packing Group: None assigned
Proper Shipping Name: Dye, Organic, Solid, Not Otherwise Specified (Acid Red 73)
Special Precautions: Avoid dust generation, keep containers sealed and upright throughout transit, include shipping documents stating chemical hazards
Label Requirements: Proper hazard pictograms, risk statements, and instructions per regional laws
Inventory Status: Listed on TSCA (US), EINECS (EU), DSL (Canada), AICS (Australia)
Safety Directives: Occupational health authorities call for restricted use in food owing to possible long-term health impacts
Worker Protections: Adherence to OSHA lab safety rules, appropriate training on chemical hygiene and emergency response
Other Regulations: Periodic review under global chemical safety initiatives; food grade uses tightly controlled or banned in multiple countries
