Product Name: Monopotassium Phosphate (MKP)
Chemical Formula: KH2PO4
Common Synonyms: Potassium dihydrogen phosphate, potassium phosphate monobasic
CAS Number: 7778-77-0
Recommended Use: Fertilizer, food additive, buffering agent for industrial and laboratory processes
Supplier: [Supplier’s contact details typically here, such as address, emergency phone number, fax, and email address for specific inquires or emergencies]
Emergency Contacts: [Local emergency response or poison control center phone numbers]
GHS Classification: Eye Irritant Category 2A, Skin Irritant Category 3
Signal Word: Warning
Hazard Statements: Causes moderate eye irritation, may cause slight skin irritation with prolonged or repeated contact, not highly toxic
Pictograms: Exclamation mark (for irritation)
Precautionary Measures: Avoid dust inhalation, prevent eye and skin contact, keep away from food and beverages
Main Component: Monopotassium Phosphate
Percentage: ≥99%
Impurities: Trace amounts of sodium, calcium, or magnesium compounds (usually below 1%)
Additives: None reported
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek medical attention if irritation persists
Skin Contact: Wash with plenty of soap and water, remove contaminated clothing, medical advice if irritation develops
Inhalation: Move to fresh air, provide oxygen if breathing is difficult, seek medical advice if symptoms persist
Ingestion: Rinse mouth thoroughly, drink water, seek medical advice if symptoms develop, do not induce vomiting unless instructed by medical personnel
Suitable Extinguishing Media: Water spray, foam, dry chemical powder, carbon dioxide
Unsuitable Media: No specific restrictions known
Combustion Hazards: Product does not burn, may release irritating or toxic fumes (phosphorus oxides, potassium oxides) when heated to decomposition
Protective Equipment: Firefighters should wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes
Special Procedures: Avoid water runoff, cool containers with water mist to prevent pressure build-up
Personal Protection: Wear gloves, goggles, dust mask or respirator, avoid dust generation
Spill Clean-Up: Sweep up spilled material gently to avoid dust, collect in a suitable container, ventilate area
Environmental Protection: Prevent material from entering water systems or drains, report large spills to local authorities as required
Disposal Method: Place recovered material in authorized landfill or waste disposal facility
Handling: Use in a well-ventilated area, avoid creating or breathing dust, wash hands after working with the product, keep containers tightly closed when not in use, use appropriate PPE
Storage Requirements: Store in a cool, dry, well-ventilated area, keep away from moisture, incompatible substances (strong oxidizers), keep away from food and drink, store in original labeled containers, protect containers from damage
Occupational Exposure Limits: No established OSHA or ACGIH exposure limits for MKP dust; general nuisance dust limits may apply (10 mg/m³ total dust, 3 mg/m³ respirable dust)
Engineering Controls: Local exhaust ventilation, dust collection systems for handling large quantities, process enclosure
Personal Protection: NIOSH-approved dust mask or respirator for dusty conditions, safety glasses with side shields, chemical-resistant gloves, antistatic work clothes
Hygiene Measures: Wash hands before eating or drinking, remove contaminated clothing and wash before reuse, keep food and drinks away from work area
Appearance: White crystalline powder or granules
Odor: Odorless
Solubility: Easily soluble in water
pH (1% solution): Slightly acidic, around pH 4.2–4.7
Boiling Point: Decomposes before boiling
Melting Point: ~252 °C (decomposes)
Density: ~2.34 g/cm³ at 20°C
Vapor Pressure: Not applicable
Explosion Properties: Not explosive
Oxidizing Properties: Does not have oxidizing properties
Flash Point: Not applicable (inorganic solid)
Stability: Stable under recommended handling and storage conditions
Incompatible Materials: Strong oxidizers, bases
Decomposition Products: Produces potassium oxides and phosphorus oxides at high temperatures
Hazardous Polymerization: Does not occur
Acute Toxicity: Low oral toxicity, LD50 (rat) estimated at >5,000 mg/kg
Skin Contact: May cause mild irritation after prolonged contact
Eye Contact: May cause irritation
Inhalation: High airborne concentrations may irritate nose, throat, respiratory tract
Chronic Effects: No reported long-term human health effects from repeated or chronic exposures
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen
Mutagenicity & Teratogenicity: No known genetic or reproductive toxicity
Ecotoxicity: Not expected to be toxic to aquatic life at low concentrations, excessive release can cause eutrophication in water bodies
Persistence & Degradability: Product dissolves and dissociates in water, natural components (potassium and phosphate) are common nutrients in the environment
Bioaccumulation Potential: Not expected to bioaccumulate or magnify in food chains
Mobility in Soil: Highly soluble, moves easily in soil and water, may contribute to phosphorus enrichment in surface waters
Other Effects: High concentration in waterways can lead to algae blooms and oxygen depletion in aquatic environments
Waste Disposal Methods: Reuse uncontaminated product where possible, for waste and contaminated residues consult local, state, national regulations
Packaging Disposal: Clean emptied packaging before reuse or recycling, dispose of in approved landfill or by incineration as appropriate
Environmental Precautions: Prevent large releases to surface waters, contain spills, consult authorities before draining into sewer or watercourses
Special Considerations: Do not combine with incompatible wastes, keep waste segregated
UN Number: Not classified as dangerous goods for transport
Proper Shipping Name: Monopotassium Phosphate
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Special Precautions: Ensure containers are secure and protected from moisture and rough handling during transport, label containers with appropriate product identification and hazard information
TSCA (Toxic Substances Control Act): Listed
REACH Status: Pre-registered or registered in the EU
Canadian DSL: Listed
WHMIS Classification: Not classified as hazardous
Inventory Listings: On most international inventories (Australia AICS, Japan ENCS, China IECSC, Korea ECL)
SARA Title III: Not a hazardous substance under Sections 302, 304, 313
Other National or Local Requirements: User must review local and national regulations regarding chemical handling, labeling, environmental discharge, and occupational health
