Substance Name: Diphenyl Isooctyl Phosphate
Synonyms: Phosphoric acid, di(phenyl) octyl ester
Recommended Use: Often used as a flame retardant or plasticizer for industrial processes
Chemical Formula: C20H27O4P
Appearance: Clear or slightly yellow liquid, oily texture, faint aromatic odor
Classification: Irritant to skin, eyes, and mucous membranes based on structural analogs and reported incidents
Hazard Statements: May cause skin and eye irritation, can cause discomfort or injury if inhaled or swallowed
Pictograms: Symbols for irritation and harmful effects, familiar to those who’ve worked with chemical warning systems
Precautionary Statements: Wearing proper safety gear is never optional, especially with repeated or large-volume exposure since contact tends to build up over time, leading to symptoms like redness, rash, or headache
Main Component: Diphenyl Isooctyl Phosphate
Chemical Family: Organophosphate ester
Impurities: Trace phenol derivatives and possibly residual solvents from synthesis, quantities usually below one percent
Skin Contact: Wash area with soap and plenty of water, remove contaminated clothing, seek medical attention if soreness persists or rashes appear
Eye Contact: Rinse eyes with water for several minutes, keep eyelids open, seek professional care for pain, redness, or blurred vision
Inhalation: Move to fresh air, monitor for cough or shortness of breath, obtain emergency assistance for persistent symptoms
Ingestion: Rinse mouth, avoid forcing vomiting, medical help needed for larger doses or ongoing discomfort
Suitable Extinguishing Media: Dry chemical, foam, or carbon dioxide works best due to oil-like properties
Special Hazards: Toxic combustion products like phosphorus oxides and organic fumes form during fires, so full protective gear with breathing apparatus is crucial
Advice for Firefighters: Stay upwind, cool containers with water spray, avoid contact with runoff water
Personal Precautions: Block off spill area, wear gloves, goggles, and boots
Methods of Cleanup: Absorb liquid using sand or inert material, place in leakproof containers, ventilate area, wash residues with detergent and water since oily films linger long after visible cleanup ends
Environmental Precautions: Prevent discharge to drains or surface water due to poor biodegradability and risk to aquatic life
Handling: Work with chemical goggles, chemical-resistant gloves, and lab coats wherever possible, avoid direct pumping or pouring without spill guards
Storage Conditions: Store in tightly sealed drums or cans, stable under standard warehouse conditions, protect from excessive heat or moisture, label storage area with clear hazard signs as required by safety standards
Incompatibilities: Keep away from oxidizing agents, strong acids, or bases
Engineering Controls: Use well-ventilated spaces, fume hoods or local exhaust if handling large volumes
PPE: Chemical splash goggles, nitrile gloves, lab coats, and for bulk work, respirator masks
Exposure Limits: Regulatory limits not specifically set for DPOP, but prudent to follow general organophosphate guidelines
Physical State: Slightly viscous clear to yellowish liquid
Odor: Mild aromatic
Solubility: Not very soluble in water, miscible with most organic solvents
Boiling Point: High boiling, often above 300°C
Vapor Pressure: Low volatility at room temperature
Density: Near 1.0 g/cm³ based on similar phosphate esters
Melting Point: Remains liquid at ambient temperatures
Chemical Stability: Stable if stored as intended, little tendency to degrade under normal conditions
Hazardous Reactions: Avoid contact with strong oxidizers, can slowly hydrolyze with acids or alkalis
Decomposition Products: Burning or extreme heat can release phosphorus oxides, aromatic fumes
Acute Toxicity: May irritate skin, eyes, and respiratory tract, data on lethal doses remains limited, but related substances show moderate toxicity
Chronic Effects: Prolonged skin exposure may cause dryness or dermatitis, reports of organophosphates affecting nervous systems have not been specifically tied to DPOP, but caution advises limiting repeated and unprotected contact
Sensitization: Not reported to cause allergic reactions, yet cases in similar chemicals highlight the importance of careful monitoring
Aquatic Toxicity: Harmful to aquatic life, not readily biodegradable, residues and spills threaten water quality
Persistence: Remains in soil or water, breakdown takes months
Bioaccumulation: Potential to build up in aquatic organisms, fish-kill incidents highlight the impact of careless disposal
Environmental Fate: Evaporation negligible, leaching into water tables a concern especially in cases of large spills
Waste Management: Collect into labeled chemical waste drums, incineration preferred if available, avoid landfill or local sewage systems
Contaminated Packaging: Triple rinse empty drums, then send for specialized treatment or industrial recycling
Transport Classification: Not classified as “dangerous goods” under most international rules, but spill response planning is key
Handling Precautions: Ship in sealed containers, keep upright, include appropriate hazard signs
Spill in Transit: Alert authorities, clean up as per accidental release protocols
Chemical Inventory: Registered in major global inventories such as TSCA or REACH, but special reporting may be triggered by volume
Workplace Use: Falls under local occupational safety regulations, such as mandated PPE, workplace exposure monitoring, training for chemical handling
Environmental Discharge: Subject to clean water and toxic substance control laws, spills and releases require official notification in many jurisdictions
