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Product Name: 4-Nitrobenzenearsonic Acid
Synonyms: p-Nitrobenzenearsonic acid, 4-nitrophenyl arsonic acid
CAS Number: 98-96-4
Recommended Use: Research chemical only, not for food, drug, or household use.
Manufacturer: Chemical manufacturing or research supply companies
Contact Details: Available on supplier documentation or container label
Emergency Phone: Refer to local or supplier emergency response numbers
Formula: C6H6AsNO5
Molecular Weight: 247.04 g/mol
Classification: Acute toxicity (oral, dermal, inhalation), Eye irritation, Environmental hazard, Carcinogen
Signal Word: Danger
Hazard Statements: Toxic if swallowed, causes eye irritation, suspected of causing genetic defects, may damage organs through prolonged or repeated exposure, toxic to aquatic life
Pictograms: Skull and crossbones, health hazard, exclamation mark, environment
Precautionary Statements: Avoid breathing dust or fume, wear gloves and eye protection, do not eat or drink near this product, keep away from children and inexperienced handlers
Routes of Exposure: Inhalation, skin, eyes, ingestion
Target Organs: Liver, kidneys, blood, nervous system
Symptoms: Headache, nausea, dizziness, abdominal pain, convulsions, blue tint to skin, eye redness, vomiting
Chemical Name: 4-Nitrobenzenearsonic Acid
CAS Number: 98-96-4
Purity: >98%
Impurities: Trace heavy metals, water, possible organic synthesis byproducts
Ingredient: No hazardous components other than main product
Formula: C6H6AsNO5
Molecular Structure: Nitro group para to arsonic acid on benzene ring
Other Names: p-Nitrobenzenearsonic Acid, 4-nitrophenyl arsonic acid
Inhalation: Remove to fresh air, provide oxygen if breathing is difficult, seek immediate medical attention
Skin Contact: Remove contaminated clothing, wash skin thoroughly with water and soap for at least 15 minutes, seek medical help for irritation or persisting symptoms
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if easy, continue rinsing, seek medical advice urgently
Ingestion: Rinse mouth, drink a glass of water if conscious, do not induce vomiting, get medical attention at once
Most Important Symptoms: Convulsions, respiratory difficulty, gastrointestinal distress
Note to Physicians: Treat symptomatically, monitor vital signs, consider chelation therapy for arsenic exposure
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide
Unsuitable Media: Direct water jet may spread material
Hazardous Combustion Products: Arsenic oxides, nitrogen oxides, toxic fumes
Protective Equipment: Firefighters require full protective gear and self-contained breathing apparatus
Fire Hazards: Product itself does not readily burn but may emit toxic gases
Special Procedures: Approach from upwind to avoid hazardous vapors, contain run-off to prevent environmental contamination
Personal Precautions: Evacuate unnecessary personnel, use NIOSH-approved respirator, chemical-resistant gloves, safety goggles
Environmental Precautions: Prevent spills from reaching drains or waterways, alert local environmental authorities
Clean-up Methods: Ventilate area, sweep up using approved dust collection techniques, avoid creating dust, collect in sealed containers for disposal
Decontamination: Wash spill area thoroughly with soap and water
Waste Handling: Dispose via licensed chemical disposal firm
References: Local, regional, national regulations for hazardous material spills
Handling Precautions: Use in well-ventilated or fume-hood equipped areas, avoid any inhalation, ingestion or skin contact, employ double containment as needed
Technical Measures: Install spill trays, use non-sparking tools, keep containers tightly sealed
Hygiene Measures: Wash hands after handling, do not eat, drink, or smoke near material
Storage Recommendations: Store in cool, dry place, away from incompatible substances including strong oxidizers or acids
Container Requirements: Resistant to chemical penetration, clearly marked and locked where possible
Packaging Materials: Shatter-resistant, leak-proof bottles or sealed glass amber jars
Exposure Limits: No ACGIH TLV or OSHA PEL specifically for 4-Nitrobenzenearsonic Acid, treat as arsenic compound (OSHA PEL: 0.01 mg/m³)
Engineering Controls: Enclosed systems, fume hoods, negative pressure rooms
Respiratory Protection: NIOSH certified dust mask or full-face respirator for higher dust levels
Hand Protection: Nitrile or neoprene gloves, double gloving advisable
Eye Protection: Chemical splash-proof safety goggles, face shield for larger operations
Skin/Body Protection: Laboratory coat, chemical-resistant apron, closed shoes
Hygiene Considerations: Remove contaminated clothing before entering general areas, launder clothing separately
Appearance: Yellow-brown solid, powder or crystalline
Odor: Odorless or mild chemical scent
Solubility: Partially soluble in water, soluble in alkaline solutions
pH: Slightly acidic in water
Melting Point: 264 - 265 °C (decomposes)
Boiling Point: Decomposes before boiling
Density: 1.72 g/cm³
Vapor Pressure: Negligible at room temperature
Stability under Light: Stable
Flash Point: Not applicable
Auto-ignition Temperature: Not determined
Partition Coefficient: log Kow not available
Molecular Formula: C6H6AsNO5
Stability: Chemically stable under normal laboratory or warehouse conditions
Incompatible Materials: Strong oxidizing agents, strong acids, bases, alkali metals
Hazardous Decomposition Products: Arsenic oxides, nitrogen oxides, carbon oxides
Polymerization: Does not occur
Conditions to Avoid: Excessive heat, direct light, moisture, generation of dust
Reactivity: Reacts violently with concentrated oxidizers
Acute Toxicity: Very toxic orally, LD50 (oral, rat): ~100 mg/kg
Skin Corrosion/Irritation: Causes moderate to severe irritation
Eye Damage/Irritation: Severe irritation
Chronic Effects: Arsenic compounds linked to cancer, nervous system impairment, blood disorders
Symptoms of Exposure: Gastrointestinal pain, nausea, headaches, neurological effects, kidney and liver harm, convulsions
Sensitization: No definitive data, avoid prolonged exposure
Carcinogenicity: Related arsenic compounds classified as carcinogenic to humans by IARC, EPA
Mutagenicity: May cause genetic defects
Toxicokinetics: Absorbed via ingestion and inhalation, accumulates in body tissues
Toxicity to Aquatic Organisms: Highly toxic to fish, invertebrates, algae
Persistence: Arsenic compounds persist in soil and water
Bioaccumulation: Tends to accumulate in aquatic food chains
Effect on Plants and Animals: Harmful to most forms of life, affects metabolic processes
Environmental Fate: Does not readily degrade, may transport long distances in environment
Soil Mobility: Moderately mobile in sandy soils, binds to certain minerals
Other Ecological Risks: Hazardous to birds and mammals if ingested in contaminated water or food
Disposal Methods: Dispose as hazardous waste according to local, state, and national regulations
Container Disposal: Triple rinse containers, destroy and dispose at licensed facilities
Incineration: Only in chemical incinerators with afterburners and scrubbers
Do Not: Release into sewers, surface waters, or regular trash
Neutralization: Preferably not attempted outside specialist facilities
Labeling: Mark all waste as “Arsenic-Containing – Toxic”
Consult Authority: Contact local environmental or waste disposal regulators for exact procedure
UN Number: 1557
Proper Shipping Name: Arsenic compound, solid, n.o.s. (4-Nitrobenzenearsonic acid)
Transport Hazard Class: 6.1 (Toxic substance)
Packing Group: II
Hazard Label: Toxic
Special Precautions: Avoid rough handling, ensure packaging is robust and leakage-proof
Environmental Hazard: Marine pollutant
Regulatory References: IMDG, IATA, ADR certifications
Emergency Response Code: As provided in shipping documentation
US Regulations: Listed under SARA Title III Section 313, TSCA, CERCLA hazardous substances
EU Regulations: Complies with REACH, listed on EINECS
Labelling: Toxic, Environmental Hazard
Workplace Control: OSHA hazardous chemical, workplace exposure restrictions apply
Domestic Transport: DOT regulated as poison
International Rules: Covered under the Rotterdam and Stockholm Conventions regarding arsenic compounds
Other Notifications: Community right-to-know laws in certain localities
Storage Restrictions: May be subject to reporting, permitting, or inventory reporting under various regulations
