Product Name: Benzylphosphonic Acid
CAS Number: 4521-32-6
Recommended Uses: Used in synthesis of organic compounds, surface modification, intermediate in chemical processes
Supplier Details: Manufacturer and distributor names, emergency contact phone numbers, email for technical inquiries
Emergency Telephone: 24-hour emergency hotline for chemical incidents
Classification: Skin corrosion/irritation, Category 2; Serious eye damage/irritation, Category 2A; Sensitization, skin, Category 1
Signal Word: Warning
Hazard Statements: Causes skin irritation, serious eye irritation, may cause allergic skin reaction
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust/fumes/gas/mist/vapors/spray, wear protective gloves/protective clothing/eye protection/face protection, wash hands thoroughly after handling, contaminated work clothing should not be allowed out of the workplace
Chemical Name: Benzylphosphonic Acid
Synonyms: Benzenemethanephosphonic Acid
Purity: >97%
Component: Benzylphosphonic Acid
Impurities/Additives: Trace levels dependent on manufacturer, less than 3%
Inhalation: Remove to fresh air, keep at rest, seek medical attention if symptoms continue
Skin Contact: Remove contaminated clothing, wash affected area with plenty of soap and water, get medical attention for irritation or allergic reactions
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy, continue rinsing, seek immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, get medical help right away
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: Direct water jet
Specific Hazards: May produce toxic gases such as phosphorus oxides, benzyl vapors, hydrogen phosphide under fire conditions
Special Protective Equipment: Firefighters should wear self-contained breathing apparatus (SCBA) and full protective gear
Fire-Fighting Procedures: Move containers from fire area if safe, use water spray to cool unopened containers, avoid breathing fumes
Personal Precautions: Evacuate area, ventilate space, use personal protective equipment, avoid contact with skin and eyes
Environmental Precautions: Prevent spills from entering waterways or drains, report to local authorities if contamination occurs
Methods for Cleanup: Collect spillage with neutral absorbent material, place in appropriate sealed waste container, dispose of according to regulations, wash contaminated area with water and detergent
Precautions for Safe Handling: Avoid formation of dust or aerosols, use with adequate ventilation, avoid contact with skin, eyes, and clothing, wash thoroughly after use, do not eat, drink, or smoke when handling
Storage Conditions: Store in tightly closed container, keep in cool, dry, well-ventilated place, protect from moisture, keep away from sources of ignition and incompatible materials like strong bases and oxidizers
Incompatible Materials: Strong bases, oxidizing agents, moisture, alcohols
Occupational Exposure Limits: No established limits for this substance, practice general industrial hygiene
Engineering Controls: Local exhaust ventilation, safety showers, eyewash stations
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), safety goggles, long-sleeved laboratory coat, respiratory protection in case of insufficient ventilation
Hygiene Measures: Wash hands before breaks and after work, remove contaminated clothing and wash before reuse
Appearance: White to off-white crystalline powder
Odor: Faint, aromatic odor
Odor Threshold: Not available
pH: Slightly acidic (solution)
Melting Point: 120–130°C
Boiling Point: Decomposes before boiling
Flash Point: Not established
Evaporation Rate: Not applicable
Flammability: Non-flammable
Vapor Pressure: Negligible at standard temperature
Vapor Density: Not available
Solubility: Slightly soluble in water, soluble in alcohol and organic solvents
Partition Coefficient: log Kow not established
Autoignition Temperature: Not available
Decomposition Temperature: Above 150°C
Viscosity: Not applicable
Chemical Stability: Stable under recommended storage conditions
Reactivity: May react with strong bases to release heat
Possible Hazardous Reactions: Contact with strong oxidizing agents may cause exothermic reactions or release irritant fumes
Conditions to Avoid: Exposure to moisture, extreme heat, incompatible materials
Incompatible Materials: Strong bases, oxidizers, strong acids
Hazardous Decomposition Products: Phosphorus oxides, benzyl fumes, carbon monoxide, carbon dioxide
Acute Toxicity: Data limited; similar organophosphonic acids show low acute oral and dermal toxicity in animal models
Skin Corrosion/Irritation: Causes skin irritation with prolonged contact
Serious Eye Damage/Irritation: Causes moderate to severe eye irritation upon exposure
Respiratory/Skin Sensitization: Potential for allergic reactions, especially with repeated contact
Chronic Effects: No known chronic toxicity data for benzylphosphonic acid, long-term exposure may aggravate skin and respiratory conditions
Carcinogenicity: No components classified as carcinogens by IARC, NTP, OSHA
Mutagenicity: Not reported/mutagenicity data not available
Reproductive Toxicity: No information available
Ecotoxicity: Data not available for aquatic or terrestrial organisms, related organophosphonic acids show moderate persistence, possible toxicity to aquatic life
Persistence and Degradability: Partial degradation expected in environment, slow under standard conditions
Bioaccumulative Potential: No evidence for significant bioaccumulation
Mobility in Soil: Expected to have low mobility based on water solubility
Other Adverse Effects: Avoid release to environment, long-term effects not fully evaluated
Disposal Methods: Dispose of as hazardous chemical waste, in compliance with local, state, and federal environmental control regulations
Container Disposal: Triple rinse containers, send to approved waste management facility
Unclean Packaging: Dispose of as product, contaminated packaging must follow hazardous waste procedures
Special Precautions: Do not allow into drains, surface water, or soil
UN Number: Not classified as a dangerous good according to transport regulations
Proper Shipping Name: Benzylphosphonic Acid
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Environmental Hazards: Not classified as marine pollutant
Special Precautions for User: Ensure vessel is properly labeled and sealed, comply with all relevant transport authority requirements
US Federal Regulations: Not regulated under TSCA, CERCLA, SARA Title III
EU Regulations: Not listed under REACH Annex XIV or SVHC, not subject to mandatory classification under CLP Regulation
Canada: Not controlled under WHMIS
Inventory Status: Listed on inventories where required in specific jurisdictions
Other Regulatory Information: Product safety information sheet available, regulated according to hazard communication standards in workplace
