Chemical Name: Tetrapotassium Pyrophosphate
Synonyms: Potassium Pyrophosphate, TKPP, Potassium Diphosphate
Chemical Formula: K4P2O7
CAS Number: 7320-34-5
Recommended Use: Commonly used in detergents, water treatment, and food additives; sometimes used in ceramics and as dispersing agent in paints and other industrial applications
Manufacturer/Supplier: [Include actual company, address, and contact details as needed]
Emergency Contact: [Local poison control, emergency number, or company helpline]
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2)
Hazard Symbols: Exclamation mark
Signal Word: Warning
Hazard Statements: Causes serious eye irritation; may cause skin irritation after repeated or prolonged contact; may cause mild respiratory irritation if inhaled as dust
Precautionary Statements: Avoid inhalation of dust; wear protective gloves and eye/face protection; wash hands thoroughly after use; in case of contact with eyes, rinse cautiously with water
Chemical Name: Tetrapotassium Pyrophosphate
Concentration: 98%–100%
CAS Number: 7320-34-5
Impurities: Trace levels of potassium orthophosphate and moisture depending on batch and supplier
Inhalation: Move to fresh air, keep person comfortable, seek medical attention for persistent symptoms
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek medical attention for prolonged irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, contact an ophthalmologist if irritation persists
Ingestion: Rinse mouth, drink water to dilute material, do not induce vomiting, seek medical attention if feeling unwell; never administer anything by mouth to an unconscious person
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: None identified for small quantities
Specific Hazards: Material does not combust easily, may decompose on strong heating forming irritating phosphorus oxides
Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective clothing
Special Procedures: Cool drums and containers with water spray to prevent bursting from heat exposure; avoid inhalation of hazardous vapors or dust
Personal Precautions: Evacuate unnecessary personnel, ventilate the area, wear protective gloves, safety glasses, dust mask or respirator
Environmental Precautions: Prevent entry into sewers, drains, and waterways; inform local authorities if spillage is large or affects the environment
Cleanup Methods: Sweep up dry, minimize dust, collect in labeled containers, clean area with water after removal, avoid dry sweeping if dust clouds form
Handling: Use only outdoors or in well-ventilated areas, wear suitable personal protective equipment, avoid breathing dust, wash hands after handling
Storage: Store in a cool, dry place, keep packaging closed and away from moisture, acids, and strong oxidizers, store away from food and drink, ensure containers are properly labeled
Occupational Exposure Limits: No established ACGIH or OSHA limits; recommend keeping workplace dust below nuisance dust limits (typically 10 mg/m3 for inhalable, 3 mg/m3 for respirable fraction)
Engineering Controls: Provide local exhaust or general ventilation to minimize airborne dust
Personal Protective Equipment (PPE): Safety goggles for eyes, gloves for skin, dust mask or P2 respirator for respiratory protection, long-sleeved clothing, safety shoes
Hygiene Measures: Do not eat, drink or smoke during use, wash hands before breaks and after handling, remove contaminated clothing and wash before reuse
Appearance: White, crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH (1% solution): 10.2–10.7
Melting Point: 1,109–1,110 °C
Boiling Point: Not applicable (decomposes)
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Non-flammable
Relative Density: 2.33 g/cm3
Solubility: Freely soluble in water
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not self-igniting
Vapor Pressure: Negligible at ambient temperature
Decomposition Temperature: Above 400 °C - forms potassium metaphosphate and releases phosphorous oxides
Chemical Stability: Stable under proper storage and normal use
Reactivity: Reacts with acids, generating heat and forming potassium phosphate and phosphoric acid
Condition to Avoid: Excess moisture, high humidity, strong heat, strong acids
Incompatible Materials: Strong oxidizers, strong acids, moisture
Decomposition Products: Potassium oxides, phosphorus oxides, irritating fumes under fire or strong heating
Acute Toxicity: Oral LD50 (rat): >2,000 mg/kg; low toxicity category
Skin Corrosion/Irritation: May cause mild skin irritation with prolonged exposure
Eye Damage/Irritation: Causes serious eye irritation; contact may result in redness, tearing, and blurred vision
Respiratory Effects: Inhalation of dust can cause mild respiratory tract irritation, sneezing, coughing
Chronic Exposure: No evidence of mutagenicity, carcinogenicity, or reproductive toxicity
Sensitization: Not known to cause allergic sensitization in humans or animals
Ecotoxicity: Low toxicity to aquatic life based on available data; large releases may lead to nutrient enrichment (phosphate effect), potentially causing algal blooms in water bodies and subsequent oxygen depletion
Persistence/Degradability: Inorganic substance, not considered biodegradable, tends to persist as ions in water or soil
Bioaccumulation Potential: Not expected to bioaccumulate
Mobility in Soil: High solubility, mobile in aqueous environments
Other Adverse Effects: Large spills may contribute to eutrophication in lakes and rivers
Product Disposal: Dispose in accordance with local, regional, and national regulations; avoid disposal in open environment or natural waterways
Contaminated Packaging: Empty containers should be rinsed, then recycled or disposed as non-hazardous industrial waste if legal framework allows
Special Instructions: Consider reuse or recycling for industrial processes if unwanted product remains pure; consult waste management authorities for guidance
UN Number: Not classified as dangerous goods by ADR, IMDG, IATA
Proper Shipping Name: Tetrapotassium Pyrophosphate
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Environmental Hazards: None known under transport conditions; keep dry during transport to avoid clumping
Special Precautions: Ensure packaging remains intact and properly sealed to prevent spillage or moisture ingress
Inventory Status: Listed on European EINECS (No. 230-785-7), TSCA (USA), and most national chemical inventories
Labeling Requirements: GHS label with warning symbol and statements for eye and skin irritation
Restrictions: Certain uses may be regulated under local food safety, environmental, or worker safety laws and restrictions on phosphate discharges
Other Regulations: Not listed as a carcinogen or hazardous air pollutant by OSHA, ACGIH, NTP, or IARC; subject to workplace safety rules regarding dust-generating materials
