Product Name: Cresyl Diphenyl Phosphate
Synonyms: CDP, Phosphoric acid, cresyl diphenyl ester
Supplier/Manufacturer: Reach out to your local chemical provider; often produced in large chemical plants for use in flame retardants, plasticizers, and lubricants.
Recommended Use: Plasticizer in PVC, flame retardant in polymers, additive for lubricants.
Emergency Telephone Number: Provided by supplier on shipment paperwork.
CAS Number: 26444-49-5
Hazard Classification: Harmful if swallowed, causes eye and skin irritation, possible respiratory irritant, hazardous to aquatic life with long-term effects.
Label Elements: Exclamation mark (Signal Word: Warning), environmental hazard symbol.
Potential Health Effects: Stinging sensation or redness in eyes, slight skin irritation, nausea or vomiting with ingestion, sore throat or coughing if inhaled.
Potential Environmental Effects: Toxic to aquatic organisms, risk of long-term adverse effects in aquatic environments.
Precautionary Statements: Avoid breathing mists or vapors, use outdoors or in well-ventilated area, avoid release to the environment.
Chemical Name: Cresyl Diphenyl Phosphate
Content: 95% or higher
CAS Number: 26444-49-5
Impurities: Trace diphenyl phosphate, cresol derivatives less than 1%
Molecular Formula: C19H15O4P
Molecular Weight: 338.30 g/mol
Inhalation: Move person to fresh air, keep at rest in a position comfortable for breathing, seek medical attention if symptoms develop.
Skin Contact: Immediately remove contaminated clothing, wash skin thoroughly with water and soap.
Eye Contact: Rinse cautiously for minutes with plenty of water, remove contact lenses if present, continue rinsing, seek medical attention.
Ingestion: Rinse mouth, do not induce vomiting, contact a poison control center or doctor.
Advice for Emergency Responders: Wear chemical-resistant gloves and eye protection, provide adequate ventilation.
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, do not use water jet directly.
Specific Hazards: Emits toxic fumes like phosphorus oxides and carbon oxides at elevated temperatures.
Protective Equipment for Firefighters: Full protective clothing, self-contained breathing apparatus.
Special Hazards: Fire can release irritating or harmful vapors, runoff may pollute waterways.
Personal Precautions: Evacuate unnecessary personnel, ensure proper ventilation, avoid contact with skin and eyes.
Environmental Precautions: Prevent entry to sewers, drains, and water sources.
Methods for Containment and Cleaning Up: Soak up spills with inert absorbent material such as sand or clay, collect in appropriate containers for disposal, clean the spill area with water and detergent, ventilate area thoroughly.
Spill Response Equipment: Chemical-resistant gloves, splash goggles, disposable coveralls, appropriate respirator if necessary.
Handling: Use only in areas with good air flow, keep containers closed when not in use, avoid inhalation of vapors or mist, ground equipment to prevent static discharge.
Storage: Store in tightly sealed containers, out of direct sunlight, in a cool, dry, well-ventilated storage space; keep away from strong oxidizers and corrosive substances.
Incompatible Materials: Strong acids, bases, and oxidizing agents.
Hygiene Practices: Wash thoroughly after handling, do not eat, drink, or smoke when working with the chemical.
Exposure Limits: No specific occupational exposure limits set globally, follow national standards.
Engineering Controls: Use fume hoods, exhaust ventilation.
Personal Protective Equipment: Chemical goggles, impervious gloves (nitrile, butyl rubber), lab coats, closed-toed shoes, respirators if vapor concentrations are high.
Environmental Exposure Controls: Use spill containment, avoid discharge into the environment, recycle or dispose in accordance with regulations.
Appearance: Clear, colorless to pale yellow liquid.
Odor: Slight phenolic aroma.
Boiling Point: Around 370°C (698°F).
Melting Point: -25°C (-13°F).
Flash Point: 220°C (428°F).
Autoignition Temperature: Not easily ignited.
Vapor Pressure: Low vapor pressure at 20°C.
Solubility in Water: Practically insoluble.
Density: 1.18 g/cm³ at 20°C.
Viscosity: Thick, syrup-like liquid at room temperature.
Evaporation Rate: Slow.
Chemical Stability: Stable under normal storage and handling conditions.
Reactivity: Non-reactive with most materials under standard conditions, can react vigorously with strong oxidizers.
Conditions to Avoid: Prolonged exposure to high temperatures, sparks, open flames, contact with strong oxidizing agents.
Decomposition Products: Carbon monoxide, carbon dioxide, phosphorus oxides, cresol derivatives.
Hazardous Polymerization: Does not occur.
Routes of Entry: Inhalation, skin contact, ingestion.
Acute Toxicity: Oral LD50 (rat): 1,300 mg/kg; Inhalation LC50 (rat): data not widely available, considered low volatility.
Skin Corrosion/Irritation: Mild irritant to skin.
Eye Damage/Irritation: Causes eye irritation.
Respiratory Irritation: Vapors may cause irritation to respiratory tract.
Chronic Effects: Prolonged or repeated exposure might lead to dermatitis or organ effects (liver and kidneys) in laboratory animals.
Carcinogenicity: No classification as carcinogen by IARC, NTP, or OSHA.
Mutagenicity: Not classified as a mutagen.
Ecotoxicity: Harmful to aquatic organisms at high concentrations; LC50 (fish): 3-7 mg/L (varies by species).
Persistence and Degradability: Not readily biodegradable, may persist in the environment.
Bioaccumulation Potential: Moderate potential to bioaccumulate, especially in aquatic species.
Mobility in Soil: Low mobility due to poor water solubility.
Other Adverse Effects: Long-term adverse effects in aquatic ecosystems, risk of contaminating natural waterways if released in significant quantities.
Waste Disposal Methods: Send unused product to licensed hazardous waste disposal facility; follow local, regional, and national waste management regulations.
Precautions: Do not pour chemical or contaminated water into drains, surface water, or soil.
Packaging Disposal: Triple rinse containers, then offer drums/barrels for reconditioning or recycling; do not reuse containers for other purposes.
Recommended Disposal: High temperature incineration, ensuring combustion gases are scrubbed for phosphorus compounds.
UN Number: Not classified as dangerous goods for transport by air, sea, or road under most shipping regulations.
Transport Hazard Class: Not regulated as a transport hazard.
Packing Group: Not applicable.
Proper Shipping Name: Cresyl Diphenyl Phosphate.
Special Transport Precautions: Prevent movement of containers during shipping, keep sealed, avoid contact with incompatible substances.
Marine Pollutant: Not classified as marine pollutant, though environmental precautions recommended.
International Inventory Status: Listed on TSCA (USA), EINECS/ELINCS (Europe), DSL/NDSL (Canada), and AICS (Australia).
Labeling Requirements: Signal word: Warning, hazard statements for skin, eye, and aquatic hazards.
Occupational Regulations: Specific exposure controls reviewed by OSHA, ACGIH, and European agencies.
Other Regulation References: Check all national/local workplace safety regulations for updates; product is subject to REACH regulations in the EU for industrial uses, and chemicals registration laws may change.
Use Restrictions: Not approved for use in food, drugs, or cosmetics.
