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Product Name: Sodium 2-Diazo-1-Naphthol-5-Sulfonate
Chemical Formula: C10H5N2NaO4S
CAS Number: 609-59-4
Manufacturer: Details available on shipment documentation
Recommended Use: Photographic chemicals, industrial use, laboratory research
Contact Information: Provided by supplier, usually directs to chemical safety office or manufacturer representative for guidance in emergency response
Emergency Telephone: Refer to localized country emergency chemical response centers, often listed in the accompanying documentation from reputable suppliers
GHS Classification: Acute Toxicity (Oral, Dermal), Eye Irritation, Skin Sensitization
Label Elements: Signal Word: Warning; Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation, may cause allergic skin reaction
Pictograms: Exclamation Mark, Health Hazard sign
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Target Organs: Skin, eyes, gastrointestinal tract
Potential Health Effects: Irritation to respiratory tract if dust is inhaled, risk of skin sensitization on contact, severe eye irritation possible on accidental exposure
Environmental Impact: Toxic to aquatic life, both short and long term
Chemical Identity: Sodium 2-Diazo-1-Naphthol-5-Sulfonate
Synonyms: Sodium salt of 2-Diazo-1-naphthol-5-sulfonic acid
Purity: Typically exceeds 97% on dry weight basis
Impurities: Trace inorganic salts and moisture; content can fluctuate based on manufacturer batch
Other Names: Diazonaphthoquinone-5-sulfonic acid sodium salt
Inhalation: Remove patient from area of exposure, move to area with fresh air, keep at rest and monitor breathing, provide oxygen if symptoms persist, contact physician if irritation or breathing difficulty continues
Skin Contact: Immediately flush affected area with running water and mild soap for at least 15 minutes, shovel contaminated clothing aside to prevent further contact, seek medical advice if rash or irritation develops
Eye Contact: Promptly rinse eyes with copious amounts of lukewarm water, lifting upper and lower eyelids frequently, continue irrigation for minimum 15 minutes, urge immediate medical consultation for persistent redness or pain
Ingestion: Rinse mouth with water, avoid inducing vomiting, offer water to dilute, keep person calm and call for medical attention at once; do not give anything by mouth to an unconscious individual
Most Important Symptoms: Irritation, allergic responses, respiratory discomfort
Notes for Doctor: Provide symptomatic and supportive therapy, monitor for allergic manifestations, possible treatment of methemoglobinemia in severe poisoning cases
Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, or carbon dioxide; avoid high-pressure streams
Special Hazards: Product may decompose on intense heating, releasing toxic nitrogen oxides, carbon oxides, and sulfur oxides; combustion can generate hazardous fumes
Protective Equipment: Firefighters should equip with self-contained breathing apparatus, full chemical protective suit
Safety Precautions: Approach from upwind, prevent runoff into waterways and sewers, cool sealed drums with water to prevent pressure build-up
Explosion Risk: No known direct explosion hazard but avoid dust accumulation and ignition sources
Personal Precautions: Evacuate unprotected personnel, secure adequate ventilation, avoid contact with skin or eyes, use personal protective gear including gloves and goggles
Environmental Precautions: Prevent spillage from entering surface water or drains, contain with sand, earth, or appropriate commercial absorbent
Methods for Clean-Up: Gently sweep or shovel spilled product into suitable, tightly closed, labeled containers for disposal, mop area with water and detergent, avoid raising dust, decontaminate tools and surfaces
Reference to Other Sections: Consult fire and first aid information above and below for safe management
Handling: Use localized exhaust ventilation in work area, wear personal protective gear at all times to minimize contact with skin, eyes, clothing, do not eat, drink, or smoke in handling zone, always wash thoroughly after handling
Storage Conditions: Store in dry, well-ventilated area away from direct sunlight, maintain temperature below 30°C, keep container tightly closed, segregate from incompatible materials such as strong acids, strong bases, and oxidizers
Packaging Materials: Use compatible, non-reactive containers constructed of high-density polyethylene or glass
Other Measures: Regularly check containers for leaks or signs of degradation, maintain clear labeling, rotate stock to avoid old product
Occupational Exposure Limits: No established specific limits from OSHA, NIOSH, or ACGIH
Engineering Controls: Use with local exhaust ventilation to reduce airborne dust concentration, install eyewash stations and emergency showers in work area
Personal Protective Equipment: Wear chemical-resistant gloves (nitrile or butyl recommended), safety goggles with side shields, lab coat or impervious apron, particulate filter respirator if dust levels may exceed recommendations
Hygiene Measures: Avoid contact with eyes, skin, and clothing, promptly remove contaminated clothing, wash hands and face after handling
Appearance: Pale yellow to orange crystalline powder
Odor: Slight, not intense or characteristic
Solubility: Freely soluble in water, limited solubility in most organic solvents
Melting Point: Decomposes before melting, typically above 180°C
Boiling Point: Not applicable, compound decomposes
Density: Estimated at approximately 1.4 g/cm³
pH (aqueous solution): Mildly acidic to neutral, typically between pH 6 to 7.5 (1% w/v solution)
Vapor Pressure: Negligible at ambient temperatures
Other Properties: Forms dust easily, stable color if protected from light
Chemical Stability: Stable under normal temperatures, sensitive to prolonged exposure to light and high temperatures
Hazardous Reactions: May react with strong oxidizing agents, strong reducing agents, or acids causing violent decomposition
Incompatibility: Avoid mixing with concentrated acids or bases, powerful oxidizers, and reducers
Decomposition Products: Heating or combustion yields nitrogen oxides, sulfur oxides, carbon monoxide, and carbon dioxide
Polymerization: Product does not undergo hazardous polymerization
Likely Routes of Exposure: Inhalation of dust, skin contact, accidental ingestion
Acute Toxicity: Harmful if swallowed, symptoms include nausea, vomiting, headache
Skin Corrosion/Irritation: Contact with skin may cause redness, irritation, allergic reaction upon repeated exposure
Serious Eye Damage/Irritation: Causes acute eye irritation, possible reversible or persistent redness and pain
Respiratory Sensitization: Dust may trigger mild respiratory irritation
Skin Sensitization: Sensitizing on prolonged contact or in sensitive individuals
Chronic Effects: Repeated or prolonged exposure may provoke dermatitis or allergic reactions in predisposed users
Mutagenicity/Carcinogenicity: No strong evidence in current literature supporting direct mutagenic or carcinogenic risk; insufficient long-term testing exists
Other Data: LD50 (oral, rat) information limited, estimated moderate toxicity based on structural analogs
Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects in aquatic environments
Persistence and Degradability: Largely stable, not readily biodegradable, may persist in water and soil
Bioaccumulative Potential: Low potential due to water solubility and ionic nature, but no comprehensive studies done
Mobility in Soil: Compound is mobile, especially in moist environments due to its high solubility
Other Adverse Effects: Degradation products may also pose hazards to aquatic and terrestrial ecosystems
Waste Treatment Methods: Dispose of in accordance with local, regional, national, and international regulations for hazardous laboratory and industrial chemicals
Product Disposal: Unused product collected and sent for chemical incineration or handled by a licensed chemical waste processor
Contaminated Packaging: Rinse thoroughly and dispose of as hazardous waste or pass to certified contract disposal services
Cautions: Avoid discharge to surface waters, sewage, or open landfills, use clearly labeled chemical waste containers throughout handling
UN Number: Check current shipping regulations, product often shipped as non-dangerous according to IATA and IMDG unless in large quantities
Proper Shipping Name: Sodium 2-Diazo-1-naphthol-5-sulfonate, sometimes labeled "not restricted" for air and sea but confirm exact codes per shipment by location
Transport Hazard Class: Typically not regulated under ADR/RID/IMDG/IATA for small laboratory quantities
Packing Group: Usually not assigned due to low explosive risk, but best practice is to pack in robust, sealed containers with clear hazard labeling
Environmental Hazards: Marine pollutant status: not listed but should be protected from aquatic discharge
Special Precautions: Secure against moisture, strong sunlight, and shifting during transit; include detailed product safety sheet in shipment
TSCA Status: Substance generally not included on the public U.S. TSCA Inventory; verify status if importing to the United States
EU Regulations: Not classified as a hazardous substance under current EU REACH regulations for all uses but safety data sheet required
OSHA: Not specifically regulated as a hazardous chemical under OSHA Hazard Communication Standard, handle using general laboratory chemical protocols
Labeling Requirements: Always marked with appropriate hazard labeling including signal words, risk phrases, and supplier information
Other Country-Specific Regulations: Reference local regulatory agency requirements for storage, handling, workplace exposure, and environmental control
Chemical Inventory Listing: Included or exempted in select global inventories, recommended to review annually for changes to local chemical legislation
