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Product Name: Sodium Tetraphenylborate
Chemical Formula: NaB(C6H5)4
Synonyms: Sodium Tetraphenylboron, Sodium Borotetraphenyl
CAS Number: 143-66-8
Recommended Use: Laboratory reagent, analytical chemistry, water treatment
Supplier Identification: Manufacturer, distributor, or supplier details to be listed according to local requirements – include emergency contact number and address
GHS Classification: Acute toxicity, category 4; Eye irritation, category 2A; Specific target organ toxicity (single exposure), category 3
Pictograms: Exclamation mark
Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes serious eye irritation; may cause respiratory irritation
Precautionary Statements: Avoid breathing dust; use only outdoors or in a well-ventilated area; wash hands thoroughly after handling; do not eat, drink, or smoke during use; in case of accident, call a poison center
Chemical Name: Sodium Tetraphenylborate
Common Name: Sodium Tetraphenylboron
Chemical Formula: NaB(C6H5)4
Molecular Weight: 346.2 g/mol
Purity: ≥ 98% by weight
Impurities: Not likely to contain major impurities affecting safety, minor organic or inorganic residues possible depending on the source
Inhalation: Move person into fresh air; seek medical attention if respiratory symptoms develop and persist; loosen tight clothing
Skin Contact: Wash with plenty of soap and water; if skin irritation or rash occurs, consult a physician
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; continue rinsing; call an eye specialist if irritation persists
Ingestion: If swallowed, rinse mouth with water; do not induce vomiting without medical advice; seek immediate help from a healthcare provider
Major Symptoms: Irritation to eyes, mucous membranes, gastrointestinal discomfort
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray as appropriate; avoid heavy water stream due to potential for chemical runoff
Specific Hazards: Product may emit toxic fumes such as carbon monoxide, carbon dioxide, boron oxides, and sodium compounds under fire conditions
Protective Equipment: Wear self-contained breathing apparatus and full protective gear; avoid inhalation of combustion gases
Special Advice for Firefighters: Contain run-off to prevent entry into waterways and drains; maintain safe distance from the fire due to possible release of toxic combustion products
Personal Precautions: Evacuate unprotected personnel from area; avoid breathing dust; wear suitable respiratory protection, chemical-resistant gloves, and safety goggles
Environmental Precautions: Prevent further leakage or spillage if safe to do so; avoid discharge into drains, surface waters, and soil
Containment and Cleanup: Sweep up and place in a dry, labeled container for proper disposal; ventilate the area; wash spill site after material pickup completed
Decontamination: Clean contaminated surfaces thoroughly with soap and water; ensure adequate ventilation during cleanup
Handling: Use in a well-ventilated place; minimize dust formation and accumulation; avoid contact with skin and eyes; do not breathe dust; wear protective clothing and equipment
Storage Conditions: Store in tightly closed containers; keep in a cool, dry, and well-ventilated location away from incompatible materials such as strong acids, oxidizers, and moisture
Technical Measures: Store away from foodstuffs; lock storage location; restrict access to trained personnel
Packing Materials: Use corrosion-resistant, moisture-proof containers; label containers clearly
Occupational Exposure Limits: No established OSHA, ACGIH, or NIOSH exposure limits; treat as a nuisance particulate or as recommended for similar boron compounds
Engineering Controls: Use local exhaust ventilation to minimize dust exposure; use enclosed processes if possible
Personal Protective Equipment:
Appearance: White to off-white crystalline powder
Odor: Odorless
Odor Threshold: Not determined
pH: 7–8 (in aqueous solution)
Melting Point: 300°C (decomposes)
Boiling Point: Not applicable (decomposes)
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Not flammable under normal conditions
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Relative Density: 1.081 g/cm³ at 25°C
Solubility: Slightly soluble in water, soluble in organic solvents
Partition Coefficient: log Kow not available
Auto-Ignition Temperature: Not self-igniting
Decomposition Temperature: >300°C
Viscosity: Not applicable
Chemical Stability: Stable at ambient temperature and pressure if stored dry and protected from light
Reactivity: Non-reactive under recommended use and storage conditions
Possibility of Hazardous Reactions: Reacts with strong acids, oxidizing agents
Conditions to Avoid: Excessive moisture, heat, strong acids, direct sunlight
Incompatible Materials: Strong acids, strong oxidizers
Hazardous Decomposition Products: Boron oxides, phenyl derivatives, sodium compounds may form at high temperatures
Acute Toxicity: Harmful if swallowed; oral LD50 (rat) approximately 500–2000 mg/kg
Skin Corrosion/Irritation: Mild skin irritant; prolonged contact may cause dryness or cracking
Serious Eye Damage/Irritation: Causes serious eye irritation
Respiratory Sensitization: Risk of respiratory system irritation if dust becomes airborne
Skin Sensitization: Not widely reported, though minor reactions possible
Chronic Toxicity: No significant chronic health hazards identified in available literature
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, or OSHA
Mutagenicity/Reproductive Toxicity: No evidence of mutagenicity or reproductive toxicity in studies on related compounds
Target Organs: Eyes, skin, respiratory system if exposed repeatedly or in high concentration
Ecotoxicity: Product is harmful to aquatic life; toxicity to fish, daphnia, or algae not fully evaluated, though boron compounds pose environmental risks if released to water bodies
Persistence and Degradability: Organic component is poorly biodegradable; can persist in environment
Bioaccumulative Potential: Low expected for sodium and boron species; tetraphenylborate ion potential not well studied
Mobility in Soil: Limited data, though some migration possible due to partial water solubility
Other Adverse Effects: Avoid direct discharge into natural environment; not expected to deplete ozone or pose a long-term hazard in soil, but possible issues in aquatic life due to boron content
Waste Treatment Methods: Dispose by incineration at an approved facility; landfill only in compliance with federal, state, and local environmental regulations
Container Disposal: Rinse empty packaging with water; dispose of rinsate and containers according to applicable guidelines
Special Precautions: Do not discharge to surface water or sewer; consult local, regional, and national regulations before disposal
Contaminated Packaging: Triple rinse and puncture containers prior to disposal or recycling
UN Number: Not regulated under UN classification for transport
UN Proper Shipping Name: Not regulated
Transport Hazard Class(es): Not classified as hazardous for transport
Packing Group: Not applicable
Environmental Hazards: Not classified as marine pollutant; precautions recommended to prevent environmental release during transport
Special Precautions for User: Package securely to prevent accidental release; keep container tightly closed
Transport in Bulk: Not applicable; avoid contamination of larger cargoes
TSCA: Listed in Toxic Substances Control Act inventory
EINECS/ELINCS: Listed in European Inventory of Existing Commercial Chemical Substances (EINECS: 205-605-5)
Canada DSL/NDSL: Listed/accepted
California Prop 65: Not listed as a known carcinogen or reproductive toxicant
OSHA Classification: Considered hazardous based on acute toxicity and eye irritation
WHMIS (Canada): Classified as D2B (toxic material causing other chronic effects)
SARA Title III: Not a listed extremely hazardous substance; not subject to reportable quantities under CERCLA
REACH Status: Exempted for research use or registered as per tonnage imported/produced
Other Regulatory Notes: Always comply with local, state/province, and federal regulations when storing, handling, or disposing
