Chemical Name: Phenylphosphinic Acid
Synonyms: Benzenephosphinic acid, PPIA
CAS Number: 1806-21-1
Molecular Formula: C6H7O2P
Molecular Weight: 142.09 g/mol
Product Codes: PPIA-914, BCHEM-2493, 3416-10
Manufacturer: Contact current supplier or research laboratory catalog
Recommended Uses: Chemical synthesis, intermediate, laboratory reagent
Contact for Information: Technical EHS representative, industrial safety desk
GHS Classification: Eye Irritation Category 2A, Skin Irritation Category 2, Specific Target Organ Toxicity Single Exposure Category 3
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory irritation
Pictogram: Exclamation mark
Physical Hazards: Not classified as flammable, explosive, or oxidizing
Chronic Effects: Potential risk for skin sensitization and repeated inhalation discomfort
Main Routes of Exposure: Inhalation, skin, eye contact
Target Organs: Eyes, skin, respiratory system
Component: Phenylphosphinic Acid
Concentration: 97% and higher (by weight)
Impurities: Trace residual solvents, moisture below 1%
Chemical Identity: C6H7O2P
Hazardous Components: None above regulatory limits
EC Number: 217-303-8
Inhalation: Move the affected person to fresh air, ventilate area, keep at rest, seek medical advice for persistent cough or breathing difficulty
Skin Contact: Remove contaminated clothing, rinse skin with water for at least 15 minutes, use mild soap if available, seek medical attention for irritation
Eye Contact: Immediately flush eyes with copious amounts of water for at least 20 minutes, remove contact lenses, consult physician
Ingestion: Rinse mouth, never induce vomiting unless directed by medical personnel, drink water in small sips, get medical help
Symptoms: Redness, pain, itchiness, coughing, sore throat, abdominal discomfort, possible allergic reactions
Protection for Responders: Gloves, eye protection, suitable mask for respiratory support if dust present
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam, water spray
Unsuitable Extinguishing Media: Heavy water jet may spread hazardous material
Special Hazards: May emit toxic fumes of phosphorous oxides, carbon oxides on combustion
Protective Equipment: Wear full firefighting gear including self-contained breathing apparatus
Further Advice: Use water spray to cool containers, avoid run-off entering drains, control vapors with ventilation
Personal Precautions: Avoid dust formation, ventilate the spill area, use recommended PPE (gloves, goggles, respirator for dust)
Environmental Precautions: Prevent material from entering water sources or soil
Cleanup Methods: Scoop up solid product with non-sparking tools, place in suitable sealed container for disposal, wash area with water, ventilate
Disposal: Follow local and national regulations for hazardous chemical disposal
Decontamination: Thoroughly wash all cleaning equipment and clothing after use
Handling: Use in well-ventilated area, wear protective gear, avoid breathing dust or mist, avoid skin/eye contact, control dust accumulation
Storage: Keep container tightly closed in a dry, cool, well-ventilated place, store away from strong bases, oxidizers and moisture, label clearly
Storage Temperature: Store at room temperature, do not freeze or overheat
Incompatibles: Strong oxidizing agents, strong bases, alkali metals, acid chlorides
Other Precautions: Store in corrosion-resistant or lined containers, keep away from food and beverages
Engineering Controls: Local exhaust ventilation, process enclosures, eyewash stations, safety showers
Eye Protection: Safety glasses with side shields or chemical goggles
Skin Protection: Chemical-resistant gloves, laboratory coat or disposable coveralls
Respiratory Protection: Dust respirator if dust or aerosol present
Hygiene Measures: Wash hands after use, remove contaminated clothing, avoid eating, drinking or smoking in work area
Workplace Exposure Limits: No strict occupational exposure limit assigned; minimize exposure consistent with good industrial hygiene
Appearance: White to off-white crystalline solid
Odor: Odorless or faintly aromatic
pH (1% solution): 2.0-3.0
Melting Point: 185-190 °C
Boiling Point: Not determined, decomposes on heating
Flash Point: Not flammable
Solubility: Soluble in water, ethanol, sparingly soluble in ether
Vapor Pressure: Negligible at ambient temperature
Density: About 1.40 g/cm³
Partition Coefficient (log Kow): Estimated -0.5
Evaporation Rate: Non-volatile
Explosive Properties: Not explosive
Oxidizing Properties: Not classified as oxidizer
Chemical Stability: Stable under recommended conditions
Conditions to Avoid: Moisture, heat, strong bases, strong oxidizers
Materials to Avoid: Alkali metals, acid chlorides, reducing agents
Hazardous Decomposition: Releases phosphorous oxides, carbon dioxide, carbon monoxide on combustion
Polymerization: Not expected
Other: May degrade on prolonged exposure to moisture or elevated temperatures
Possible Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: No data on LD50 in humans; similar organophosphinates show low to moderate oral toxicity in rodents
Skin Corrosion/Irritation: Causes irritation, may provoke redness and discomfort
Eye Damage/Irritation: Risk of severe eye irritation, redness, watering
Respiratory Sensitization: Prolonged inhalation leads to coughing, throat discomfort
Chronic Effects: Not classified as carcinogen, mutagen, or reproductive toxin; long-term exposure untested
Other Hazards: Sensitization possible in predisposed individuals
Symptoms: Pruritus, rash, eye redness, sore throat, cough, nausea
Environmental Fate: Slowly biodegradable, low bioaccumulation potential
Acute Aquatic Toxicity: Limited data, unlikely to cause acute toxicity at typical environmental concentrations
Chronic Aquatic Toxicity: Not classified as environmentally hazardous
Mobility in Soil: Expected to be mobile in moist soils, potential for leaching
Persistence and Degradability: Degrades over weeks to months in water and soil
Bioaccumulation Potential: Low
Other Ecological Effects: Avoid release to waterways, long-term effects not fully understood
Product Disposal: Dispose of as hazardous waste in accordance with local, state, and federal laws
Contaminated Packaging: Triple rinse, puncture, and deliver containers to hazardous waste facility
Disposal Methods: Chemical incineration under controlled conditions, landfill only with approval
Additional Notes: Do not flush to sewer, avoid landfill without specialist advice
UN Number: Not regulated for transport by road, air, or sea under most regulations
Proper Shipping Name: Phenylphosphinic Acid (or as labeled by supplier)
Transport Hazard Class: Not classified as dangerous goods
Packing Group: Not classified
Environmental Hazards: Not a marine pollutant
Transport Precautions: Package in sealed, labeled containers, protect from moisture, stack to prevent spills
Safety, Health and Environmental Regulations: Subject to general chemical restriction in workplace safety legislation
Inventory Listings: Listed or exempted on TSCA, REACH, DSL, EINECS/ELINCS
Labeling Requirements: Use GHS pictograms, hazard statements, precautionary statements
Other Requirements: Review local chemical inventories and occupational safety codes for usage and storage limits
Restrictions: Not subject to specific restrictive regulations for industrial applications, but stewardship principles encourage responsible use
