Product Name: Coated Red Phosphorus
Other Names: Encapsulated Red Phosphorus, Flame Retardant Grade Red Phosphorus
Recommended Use: Flame retardant in plastics, pyrotechnic industries, safety matches
Manufacturer/Supplier: Listed on packaging or shipment documentation
Emergency Contact: Local poison centre, healthcare facility or phone number on product label
Classification: Flammable solid, acute toxicity if inhaled, skin irritation, environmental hazard
Label Elements: Danger symbol for flammability, acute health hazard, aquatic toxicity
Signal Word: Danger
Hazard Statements: May ignite under friction or high heat, toxic if ingested or inhaled, causes irritation to eyes and skin, hazardous to aquatic environments
Precautionary Statements: Keep away from ignition sources, avoid breathing dust, wear protective gear, wash thoroughly after handling
Emergency Overview: Pink to crimson powder or granules, has no odor, dust may catch fire quickly with sparks or static, inhalation risks rise sharply when working without respirators, especially in closed rooms
Chemical Name: Phosphorus, red
Chemical Formula: P
CAS Number: 7723-14-0
Content: Typically 90-99% Phosphorus
Coating Material: Often resin, silicone, or specialty polymer (2-8% of product mass)
Impurities: No reported heavy metals above trace levels; check lot-specific COAs for detail
Other Additives: Anti-caking agents, stabilizers depending on supplier
Inhalation: Remove person to fresh air, seek medical help if cough, respiratory distress, or dizziness start
Skin Contact: Wash exposed skin with soap and cool water for at least 15 minutes; remove contaminated clothing immediately
Eye Contact: Rinse cautiously with water for 20 minutes; keep eyelids open; seek medical advice if irritation stays
Ingestion: Do not force vomiting; give water if victim is alert; get emergency medical response
Most Important Symptoms: Breathing trouble, abdominal pain, skin burns, coughing, eye pain
Suitable Extinguishing Media: Use dry sand, graphite, or Class D fire extinguisher; water can spread flames.
Hazardous Combustion Products: Toxic phosphorus oxides, dense white/gray smoke
Protection for Firefighters: Self-contained breathing apparatus, flame-retardant suit
Specific Hazards: Fire risk soars with dust cloud and contact with strong oxidizers
Special Procedures: Isolate area, keep people away, avoid walking through spilled powder, control ignition sources strictly
Spill Procedures: Wear anti-static, dustproof gear including gloves, goggles, and respirator
Containment: Close off area, shut ventilation, stop traffic near spill
Clean-Up: Scoop up powder without sweeping or vacuuming; use plastic tools; place in inert, labeled containers for disposal
Environment: Block spills from drains, water sources; follow up with local clean-up agencies
Personal Protection: Full suit, NIOSH/MSHA-approved respirator or P3 cartridge mask, avoid skin and eye exposure entirely
Handling: Operate with grounded metal tools, control static, avoid flame, sparks, and friction, keep area dry, ventilate workspace well
Storage: Keep locked in a fire-resistant container, away from all oxidizers, acids, and moisture, maintain temperature below recommended limit (often 45°C or 113°F), store only in original packaging
Incompatible Materials: Chlorates, nitrates, strong acids, and bases
Special Rules: Do not smoke, eat, or drink nearby; limit exposure time, always seal container tightly after every use
Exposure Limits: OSHA PEL: 0.1 mg/m³ (as phosphorus limit) TWA, ACGIH TLV: 0.1 mg/m³
Engineering Controls: Ventilated workspace with local exhaust, explosion-proof equipment in large-scale operations
Personal Protective Equipment: Gloves rated for chemicals, safety goggles or full face shield, anti-static lab coat or coveralls, NIOSH or equivalent approved dust respirator
Hygiene Measures: Wash hands, face, and arms after handling, strip gear before leaving site, never reuse gloves
Environmental Controls: Prevent discharge to sewer, surface water, or soil by using closed systems, secondary containment
Physical State: Powder or granules, uniform crimson or brick-red color
Odor: Odorless (or faint, non-chemical odor with some coatings)
pH: Not applicable (insoluble in water)
Melting Point: Sublimes without melting; softens at ~260°C (500°F)
Boiling Point: Not defined (decomposes before boiling)
Flash Point: >300°C (depends on purity; coatings may affect this)
Relative Density: About 2.3 g/cm³
Solubility: Insoluble in water, slowly reacts with strong acids or bases
Vapor Pressure: Negligible at room temperature
Other Information: Static discharge can ignite powder, dust forms airborne clouds easily, surface coatings improve stability but do not eliminate hazards
Chemical Stability: Stable at room temperature in sealed container with dry atmosphere
Reactivity: Reacts with oxidizing agents, acids, chlorine; can spontaneously combust with heat buildup or static
Hazardous Reactions: May ignite with friction, shock, or impact
Decomposition Products: Phosphorus oxides (POx), phosphoric acid (trace), toxic gases
Conditions to Avoid: Moisture, heat, flames, any shock, sunlight, strong acids and oxidizers
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Acute Effects: Irritation of respiratory tract and mucous membranes, nausea, headache, burning or pain in skin and eyes
Chronic Effects: Prolonged or repeated exposure can lead to dental/jaw necrosis, bone loss, systemic poisoning
Sensitization: Not commonly reported, but dust/particulates can keep turning up with similar symptoms
Carcinogenicity: Not listed by NTP, IARC, OSHA
Other Data: No good reason to take risks—short exposures can lead to real symptoms in closed room, so masks and gloves actually help keep workers safe
Toxicity: Toxic to aquatic organisms even at low concentrations, persists in soil and water
Persistence and Degradability: Breaks down slowly in water; coating limits leaching but doesn’t remove risk
Bioaccumulation Potential: May build up in sediment and aquatic life
Mobility in Soil: Low mobility unless exposed to acids or bases
Other Ecological Info: Larger scale spills can contaminate rivers, harm fish, and disrupt natural systems—swift reporting and action on site limits lasting damage
Proper Disposal: Deliver to licensed hazardous waste handler, do not dump in regular trash, landfill, or sewer
Contaminated Packaging: Triple rinse with water, then treat as hazardous waste
Recovery or Recycling: Not advised without specialist facility
Precautions: Isolate for incineration with afterburner and scrubbing systems, follow all local and national waste laws
Community Protection: Notify local hazardous material group if bulk spill, save all tracking and manifest documents
UN Number: UN1338
Proper Shipping Name: Red phosphorus, stabilized
Transport Hazard Class: 4.1 (Flammable Solid)
Packing Group: III
Label: Flammable solid symbol, with environmental warning for aquatic risk
Special Transport Precautions: Keep upright, no stacking with oxidizers, avoid vibration or shock in transit, always ship in approved, sealed containers
Regulatory Guidance: DOT, IATA, IMDG follow strict protocols and require waybill, documentation at all times
International: Listed on TSCA, EINECS, AICS, DSL, and other major lists with hazard warnings
U.S. Federal Law: Regulated through OSHA 29 CFR1910.1200, SARA Title III, EPA environmental rules
Labeling Requirements: Hazard pictograms, signal word “Danger”, safety phrases
Canada: Controlled Products Regulations, WHMIS classification matches U.S.
Other Notices: Many states and countries restrict sales; pharmacies and chemical buyers need to confirm legitimate usage
Local Rules: Facilities handling red phosphorus register with agencies for annual reporting, site audits, and unannounced inspections
