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Chemical Name: Erythrosin B
Common Names: Red No. 3, Acid Red 51
Chemical Formula: C20H8I4Na2O5
Appearance: Reddish powder
Intended Uses: Food dye, histological stain, analytical reagent
Main Hazards: Skin and eye irritation, potential allergenic reactions, environmental risk due to aquatic toxicity
Routes of Exposure: Inhalation, skin contact, ingestion
Acute Symptoms: Coughing, sneezing, eye watering, rash on skin contact
Chronic Concerns: Thyroid disruption identified in animal studies at high doses, possible carcinogen classification in certain regions
Main Ingredient: Erythrosin B disodium salt
Purity: Usually above 90% in laboratory-grade material
Contaminants: Small amounts of heavy metals possible from manufacturing environments
Eyes: Rinse for several minutes with running water, keep eyelids open
Skin: Wash thoroughly with soap and water, remove contaminated clothing
Inhalation: Move to fresh air, seek medical attention if symptoms persist
Ingestion: Rinse mouth, avoid inducing vomiting, seek medical evaluation if irritation develops
Suitable Extinguishers: Dry chemical, water spray, carbon dioxide
Combustion Products: Possible release of iodine compounds, carbon oxides, and toxic fumes
Fire Response: Wear protective clothing, self-contained breathing apparatus
Special Hazards: Fine powder can form explosive mixtures with air under certain conditions
Personal Protection: Gloves, goggles, dust mask ideally used toward containment efforts
Spill Handling: Sweep or vacuum up without generating dust, place in labeled container
Surface Cleanup: Use damp cloths, avoid dry sweeping
Environmental Steps: Prevent release into water systems, avoid soil contamination
Handling: Store in a well-ventilated, dry area, tightly closed containers only
Avoid: Generating airborne dust, storing near food or animal feeds
Temperature Sensitivity: Stable at ambient conditions, protect from moisture
Long-Term Storage: Sealed packaging, away from direct sunlight and incompatible chemicals
Workplace Standards: No established OSHA PEL, but prudent practices call for ventilation
Engineering Controls: Local exhaust or cabinets to limit dust
Protective Gear: Laboratory gloves, chemical splash goggles, lab coat
Hygiene Measures: Wash hands before eating, avoid cross-contamination
Melting Point: Decomposition before melting reported
Solubility: High solubility in water, limited in most organic solvents
Odor: None detectable
Explosive Properties: Dust hazard under certain conditions
Color: Deep red powder
Chemical Stability: Stable under recommended storage
Incompatible Materials: Strong oxidizers, reducing agents
Hazardous Decomposition: Iodine vapors, sodium oxides possible at high temperature
Polymerization: No risk identified
Acute Toxicity: Animal studies show low oral toxicity, but high doses have impacted thyroid health
Irritation: Eye and respiratory irritation documented in case reports
Sensitization: Reports of allergenic skin reactions
Chronic Effects: High-dose rodent studies suggest increased risk of thyroid tumors, prompting some regulatory restrictions on food use
Aquatic Toxicity: Evidence for toxicity to fish and aquatic invertebrates at certain concentrations
Persistence: Moderately persistent, potential to bioaccumulate
Degradation: Slow breakdown in soil and water under natural conditions
Impact: Runoff into waterways can disrupt aquatic ecosystems, concern for dyeing of water bodies
Small Quantities: Collection as chemical waste, incineration suggested if facilities permit
Large Quantities: Coordinated through licensed hazardous waste management
Drain Disposal: Never pour down the drain; molecules stick around in the environment longer than most expect
UN Classification: Not classified as dangerous goods by most transport agencies
Special Handling: Keep container upright, avoid rough handling
Spill Protocol: Secure spills promptly, use containers that resist chemical attack and prevent leaks
Food Additive Status: Banned or restricted in multiple countries for use in food products due to thyroid and carcinogenicity concerns
Workplace Regulations: Listed as a chemical hazard by multiple safety agencies, mandates for good industrial hygiene
Labeling: Warnings required for potential allergenicity and environmental harm
Community Right-to-Know: Disclosure in chemical inventories where handled at scale
