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Product Name: Potassium Dihydrogen Phosphate
Synonyms: Monopotassium Phosphate, MKP
Chemical Formula: KH2PO4
CAS Number: 7778-77-0
Recommended Use: Fertilizer, food additive, lab reagent, buffer solutions
Manufacturer Contact: [Provide company information, phone, address, and emergency contact number]
Emergency Phone Number: [Insert regional emergency contact]
GHS Classification: Not classified as hazardous under GHS criteria
Hazard Statements: Dust can irritate respiratory tract and eyes; may cause mild skin irritation
Pictograms: None required
Signal Word: None required
Precautionary Statements: Avoid breathing dust; wash hands after handling; wear eye protection
Potential Health Effects: Inhalation of dust can lead to coughing or throat irritation; contact with eyes may cause irritation or redness; accidental ingestion may cause stomach irritation
Chemical Name: Potassium Dihydrogen Phosphate
Common Name: MKP
CAS Number: 7778-77-0
Concentration: 99–100%
Inhalation: Remove affected person to fresh air; seek medical attention if symptoms develop or persist
Skin Contact: Remove contaminated clothing; rinse skin with plenty of water; get medical help if irritation persists
Eye Contact: Rinse cautiously with water for at least 15 minutes; remove contact lenses if present and easy to do; consult a doctor if irritation continues
Ingestion: Rinse mouth with water; do not induce vomiting; seek medical attention if feeling unwell
Most Important Symptoms: Mild eye, skin, or respiratory irritation
Flammability: Non-flammable
Suitable Extinguishing Media: Use appropriate media for surrounding fire—water spray, carbon dioxide, dry chemical, foam
Specific Hazards: Product does not burn but may decompose above 400°C, generating potassium oxides and phosphorus oxides, which can irritate airways
Protective Equipment and Precautions: Firefighters should wear self-contained breathing apparatus and full protective clothing
Explosion Hazards: Dust clouds may present a minor risk in confined or poorly ventilated spaces
Personal Precautions: Avoid contact with skin and eyes; avoid creating dust clouds; wear proper protective gear
Environmental Precautions: Do not allow material to enter drains or watercourses; notify authorities if large quantities enter waterways
Methods for Cleaning Up: Carefully sweep or shovel the material into suitable containers for proper disposal; ventilate area and wash affected surfaces with water
Spill Response: If safe to do so, prevent further release; for large spills, consult emergency services
Handling: Do not breathe dust; handle in a well-ventilated area; wear eye protection, gloves, and dust mask if dust creation is possible; keep containers closed
Storage: Store in original containers, tightly sealed, in a cool, dry, and well-ventilated place, away from incompatible materials such as strong acids and bases; protect from moisture and direct sunlight
Incompatibilities: Acidic conditions, strong oxidizing agents, strong bases
Exposure Limits: No occupational exposure limits established for potassium dihydrogen phosphate; general nuisance dust limits may apply (e.g., total dust: 10 mg/m3 ACGIH)
Engineering Controls: Use local exhaust ventilation to control dust exposure; keep work area clean
Personal Protection: Safety goggles or glasses; appropriate gloves such as nitrile or rubber; dust mask or particulate respirator if dust is generated; laboratory coats or suitable clothing
Hygiene Measures: Wash hands thoroughly after handling; do not eat, drink, or smoke in work areas; remove contaminated clothing and wash before reuse
Appearance: White, crystalline powder or granules
Odor: Odorless
Odor Threshold: Not applicable
pH (1% Solution): 4.2–4.7
Melting Point: 252.6°C (decomposes)
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Flammability: Non-flammable
Vapor Pressure: Negligible at room temperature
Solubility in Water: 220 g/L at 20°C
Density: 2.338 g/cm3
Partition Coefficient: Not applicable
Auto-ignition Temperature: Not applicable
Upper/Lower Flammability Limits: Not applicable
Evaporation Rate: Not applicable
Decomposition Temperature: >400°C
Chemical Stability: Stable under normal conditions of use and storage
Conditions to Avoid: Excessive heat, moisture, sources of ignition
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Hazardous Decomposition Products: May produce corrosive and irritating gases like phosphorous oxides and potassium oxides on thermal decomposition
Polymerization: Will not occur
Acute Toxicity: Low toxicity by oral and dermal routes (LD50 oral rat > 2,000 mg/kg)
Skin Contact: May cause slight irritation or redness, especially after prolonged exposure
Eye Contact: Dust or particles can irritate the eyes
Inhalation: May cause throat or lung irritation if inhaled
Ingestion: In excessive amounts, may cause gastrointestinal discomfort such as nausea, vomiting, or diarrhea
Chronic Effects: Not classified as a carcinogen, mutagen, or reproductive toxin; no evidence of long-term toxicity at expected exposure levels
Sensitization: No known sensitizing properties
Medical Conditions Aggravated by Exposure: Pre-existing respiratory or skin conditions
Toxicity: Low aquatic toxicity; not expected to be harmful to aquatic life at environmentally relevant concentrations
Persistence and Degradability: Dissolves and dissociates in water into naturally-occurring ions
Bioaccumulation Potential: No significant bioaccumulation expected due to high water solubility
Mobility in Soil: Highly mobile, especially in wet environments
Other Adverse Effects: High concentrations in waterways can contribute to eutrophication, leading to excessive algal growth; always prevent releases in excess of local regulations
Waste Treatment Methods: Dispose in accordance with local, state, and federal requirements
Unused Product: Small quantities can usually be washed away with copious water, provided this does not violate local guidelines
Contaminated Packaging: Rinse thoroughly before disposal or recycling
Environmental Precautions: Avoid uncontrolled release to soil, surface water, or groundwater; inform relevant authorities if large discharges occur
UN Number: Not classified as dangerous for transport
UN Proper Shipping Name: Not regulated
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Environmental Hazards: Not considered a marine pollutant
Special Precautions for User: Ensure containers are secure and dry during transit; handle with standard precautions
OSHA: Not regulated as a hazardous chemical
TSCA: Listed
DSL/NDSL (Canada): Listed
REACH (EU): Registered
SARA Title III: Not subject to reporting requirements
California Proposition 65: Not listed
Other Country Regulations: Follow all relevant local, national, and international guidelines
