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Chemical Name: Phenylphosphonic dichloride Chemical Formula: C6H5POCl2 Molecular Weight: 210.99 g/mol Physical Form: Colorless to pale yellow liquid, pungent odor Common Uses: Intermediate for phosphonic acids, flame retardants, corrosion inhibitors
Hazard Classification: Corrosive to skin and eyes, hazardous if inhaled, reactive with water GHS Symbols: Corrosive, toxic Main Risks: Severe burns, harmful vapors, risk of acute toxicity from short-term and repeated exposure Immediate Dangers: Hydrochloric acid fumes on contact with moisture, rapid tissue damage
Active Component: Phenylphosphonic dichloride, content usually above 95% Impurities: Trace organophosphorus compounds, residual moisture may form hydrochloric acid
Inhalation: Move to fresh air, keep breathing comfortably, seek urgent medical attention Skin Contact: Flush contaminated skin for at least thirty minutes, remove affected clothing, get medical help Eye Contact: Rinse eyes continuously with water, keep eyelids open, immediate medical action required Ingestion: Do not induce vomiting, rinse mouth if possible, get emergency treatment
Suitable Extinguishing Media: Dry chemical, CO2, alcohol-resistant foam recommended Hazardous Decomposition: Hydrochloric acid, phosphorus oxides released on burning Special Procedures: Wear full protective gear and self-contained breathing apparatus; run-off may cause environmental harm
Containment: Evacuate area, isolate spill site, restrict access Cleanup Process: Use inert absorbents such as sand, place in chemical waste containers, avoid water contact Ventilation: Ensure strong ventilation, avoid inhaling vapors Environmental Caution: Prevent spillage into drains, surface water, and soil
Handling: Only handle with proper ventilation and trained personnel, avoid direct contact, do not inhale fumes Protective Steps: Keep emergency showers and eyewash stations close Storage: Store in cool, dry, well-ventilated spaces, keep container tightly closed, avoid exposure to moisture Incompatible Materials: Avoid bases, water, alcohols, amines as violent reactions may occur
Engineering Controls: Use fume hood or local exhaust, monitor vapor levels Eye/Face Protection: Chemical splash goggles, face shield Skin Protection: Impervious gloves, chemical-resistant suit and boots Respiratory Protection: Only use approved respirators if exposure limits risk being exceeded Hygiene Practices: Wash thoroughly after handling, change contaminated clothing promptly
Appearance: Clear to pale yellow liquid Boiling Point: Approximately 273°C Melting Point: Data not broadly reported Solubility: Decomposes in water, soluble in organic solvents Vapor Pressure: Moderate at room temperature Odor: Sharp, irritating pH: Acidic on contact with water Density: About 1.35 g/cm³
Chemical Stability: Stable under inert, dry atmosphere Reactivity: Reacts vigorously with water, alcohols, and amines, releasing corrosive gases Polymerization: No hazardous polymerization expected Avoid: Moist conditions, heat, and incompatible reactants
Main Exposure Routes: Inhalation, skin, and eye contact Short-Term Effects: Severe irritation, burns, respiratory distress on inhalation Long-Term Risks: Repeated exposure may lead to dermatitis, chronic respiratory issues Symptoms: Redness, pain, blisters, coughing, difficulty breathing
Environmental Impact: Highly toxic to aquatic organisms, rapid hydrolysis creates further risks Persistence and Degradability: Reacts quickly in water forming toxic byproducts Precaution: Prevent discharge into waterways, soil, and sewer systems
Recommended Disposal: Hand over to licensed hazardous waste contractors, never pour into regular drains Special Handling: Clearly label waste, store in corrosion-resistant containers Legal Compliance: Follow all relevant chemical and hazardous waste regulations
UN Number: 3265 (Corrosive liquid, acidic, organic, n.o.s.) Transport Hazard Class: 8 (Corrosive) Packing Requirements: Use approved corrosion-proof and sealed containers, label visibly Recommendations: Isolate from incompatible goods, not for air transport without specialized packaging
Classification: Listed under various chemical control regimes as a hazardous substance Worker Protection: Subject to occupational exposure standards, worker safety laws PPE Requirements: Mandated by most workplace health and safety regulations Reporting Obligations: Many jurisdictions require notification in case of spill or accident
