Product Name: FR Mflam THPC
Chemical Family: Phosphonium salt
SYNONYMS: Tetrahydroxymethyl Phosphonium Chloride solution
Recommended Use: Flame retardant treatment for cotton materials
Manufacturer: Please refer to product label for local supplier contact details
Contact for Emergency: Emergency telephone number is listed on manufacturer’s label
Classification: Eye irritation, Skin irritation, Acute toxicity oral and dermal, Environmental hazard to aquatic life
Signal Word: Warning
Hazard Pictograms: Exclamation mark, Environment
Hazard Statements: Harmful if swallowed or in contact with skin, Causes serious eye irritation, May cause skin irritation, Harmful to aquatic life with long lasting effects
Precautionary Statements: Avoid all unnecessary contact with skin or eyes, Wash thoroughly after handling, Keep away from waterways and soil
Main Ingredient: Tetrahydroxymethyl phosphonium chloride (THPC) (CAS number: 124-64-1), concentration: 45–65%
Other Components: Water, approximately 35–55%
Impurities: Very low levels of formaldehyde and phosphoric acid
Inhalation: Move to fresh air, keep respiratory tract clear, seek medical attention if symptoms persist
Skin Contact: Wash skin immediately with soap and water, remove contaminated clothing, seek medical advice for persistent irritation
Eye Contact: Rinse immediately under running water for at least 15 minutes, remove contact lenses if present, seek specialist medical attention
Ingestion: Rinse mouth, drink small amounts of water, do not induce vomiting, contact poison control and get medical help
Suitable Extinguishing Media: Water spray, dry chemical, foam, or carbon dioxide
Hazards from combustion: Possible formation of toxic gases like phosphorus oxides, hydrogen chloride, carbon monoxide
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing to prevent contact with skin and eyes
Advice: Stay upwind, avoid run-off into drains and water sources
Personal Precautions: Wear rubber gloves, goggles, chemical-resistant boots
Environmental Precautions: Contain spill to prevent entry into sewers, soil, or waterways
Cleanup Methods: Absorb small spills with inert absorbent material (sand, earth), dispose in closed chemical waste container, ventilate area, wash down residual material with plenty of water
Handling: Use only in well-ventilated areas, wear appropriate protective clothing and eye protection, avoid contact with incompatible materials such as oxidizers, acids, and alkalis
Storage: Keep container tightly closed in a cool, dry, well-ventilated area, store away from food and feed, prevent freezing and excessive heat, keep out of direct sunlight
Exposure Limits: THPC: No OSHA PEL; implement good industrial hygiene controls
Engineering Controls: Local exhaust or general ventilation should control airborne vapors
Personal Protective Equipment: Chemical-resistant gloves, long-sleeved work shirts, safety goggles, face shield in high splash risk areas, NIOSH approved respirator when handling large quantities or in poorly ventilated spaces
Hygiene Measures: Do not eat, drink, or smoke while handling, always wash hands after handling, remove and wash contaminated clothing before reuse
Appearance: Clear to slightly yellow aqueous solution
Odor: Mild, fishy or formaldehyde-like
pH: 2.0–4.0
Boiling Point: 100°C (water-based solution)
Melting Point: Below –20°C
Flash Point: Not flammable (aqueous solution)
Solubility: Easily soluble in water
Relative Density: 1.25–1.34 (water=1)
Vapor Pressure: Not significant at room temperature
Decomposition Temperature: Decomposes above 160°C producing toxic gases
Chemical Stability: Stable under normal conditions, sensitive to heat and light
Hazardous Reactions: Reacts with strong oxidizers, reducing agents, strong acids and bases
Conditions to Avoid: High temperatures, freezing, contact with incompatible substances
Decomposition Products: Phosphine, formaldehyde, phosphoric acid, hydrogen chloride
Acute Toxicity: Oral (rat) LD50 ~ 400 mg/kg; Dermal irritation possible after prolonged exposure
Chronic Effects: No clear evidence of chronic toxicity at normal industrial exposures
Skin Contact: May produce irritation with prolonged contact
Eye Contact: Causes eye irritation, especially with concentrated material
Carcinogenicity: No component listed by NTP, IARC, or OSHA as carcinogenic for this formulation
Inhalation: Dust or fume may cause irritation of respiratory tract at very high concentrations
Aquatic Toxicity: Harmful to aquatic organisms even at low concentrations
Persistence and Degradability: Degrades in environment, but releases phosphate and chloride ions
Bioaccumulation: Not expected to bioaccumulate in aquatic life
Mobility in Soil: Mobile in water, potential to reach groundwater if spillage uncontrolled
Product Disposal: Must follow all local, regional, and national regulations, incineration or landfill at approved facilities
Container Disposal: Triple rinse and offer for recycling or disposal, avoid reuse for other materials
Special Instructions: Consult with licensed waste disposal company, never pour into sewers or water courses
UN Number: 2922
Proper Shipping Name: Corrosive liquid, toxic, n.o.s. (contains Tetrahydroxymethyl phosphonium chloride)
Transport Hazard Class: 8 (Corrosive), 6.1 (Toxic)
Packing Group: II
Environmental Hazards: Marine pollutant
Transport in Bulk: Follow IMO/IMDG Code for sea, and ADR/RID for land transport
Labelling under GHS: Eye irritation, skin irritation, environmental hazard symbols required
OSHA: Not specifically regulated, but subject to general chemical safety requirements
EPA: Not classified as a hazardous waste, report releases as required under CERCLA
DSL/NDSL (Canada): All ingredients listed
EINECS (EU): Components present
Local Regulations: Check with country-specific guidelines for usage and disposal
