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Product Name: Dipotassium Hydrogen Phosphate
Chemical Formula: K2HPO4
Synonyms: Potassium Phosphate Dibasic, Potassium Hydrogen Phosphate
CAS Number: 7758-11-4
Recommended Use: Laboratory chemical, water treatment, fertilizers, food additive
Manufacturer/Supplier: [Company name and address]
Emergency Phone: [Local emergency number]
GHS Classification: Not classified as hazardous under GHS criteria
Physical Hazards: None under normal conditions
Health Hazards: May cause slight irritation to respiratory tract, eyes, and skin on direct contact. Dust may aggravate symptoms of asthma or lung issues.
Environmental Hazards: Not considered hazardous, but excessive amounts can disrupt aquatic nutrient balance.
Pictograms: No symbol required
Signal Word: None
Precautionary Statements: Avoid breathing dust, prevent contact with eyes and prolonged skin exposure. Wash hands thoroughly after handling.
Chemical Name: Dipotassium Hydrogen Phosphate
Common Name: Potassium Phosphate Dibasic
CAS Number: 7758-11-4
Concentration: >98% by weight
Impurities: Trace potassium orthophosphates, moisture
Molecular Weight: 174.18 g/mol
Inhalation: Move to fresh air. Seek medical attention if symptoms persist, such as coughing or difficulty breathing.
Skin Contact: Wash exposed area with plenty of water and remove contaminated clothing.
Eye Contact: Rinse immediately with running water for at least 15 minutes, keeping eyelids apart. Remove contact lenses if present.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice if large quantity is swallowed or discomfort occurs.
Important Symptoms: May cause mild irritation to mucous membranes, minor skin and eye discomfort.
Note for Physician: Treat symptomatically. No special antidote.
Suitable Extinguishing Media: Use water spray, carbon dioxide, dry chemical, or foam.
Unsuitable Extinguishing Media: None noted for this substance.
Specific Hazards: Non-combustible salt; at high temperatures, may release irritating or toxic phosphorus oxides.
Protective Equipment: Firefighters use self-contained breathing apparatus and protective clothing. Avoid breathing dust or fumes.
Decomposition Products: Phosphorus oxides, potassium oxides at very high temperatures.
Advice for Firefighters: Use water to cool unopened containers near fire zone to prevent rupture.
Personal Precautions: Minimize dust generation. Use suitable respiratory protection in poorly ventilated environments.
Protective Equipment: Suitable gloves, goggles, dust mask or respirator.
Environmental Precautions: Avoid release to drains or surface water in large amounts.
Methods for Cleanup: Scoop up and shovel spilled material into dry, labeled container for recovery or disposal. Wash spill area with plenty of water.
Emergency Procedures: Restrict access to spill area. Provide local exhaust ventilation if working in enclosed space.
Handling: Prevent dust formation. Wear appropriate personal protection. Use with adequate ventilation. Handle with care to avoid spills.
Storage: Store in tightly closed containers in dry, cool, well-ventilated area. Protect from moisture and incompatible materials.
Incompatibilities: Acids, magnesium, strong oxidizing agents
Hygiene Practices: Wash hands and face after handling. Keep work area clean.
Storage Class: General chemical storage
Occupational Exposure Limits: No established limits for dipotassium hydrogen phosphate.
Engineering Controls: Use local exhaust ventilation if dust is generated.
Personal Protective Equipment:
Appearance: White crystalline powder or granules
Odor: Odorless
Odor Threshold: Not applicable
pH: 8.5 – 9.6 (1% solution in water)
Melting Point: 340°C (decomposes)
Boiling Point: Decomposes on heating
Solubility: 167 g/L at 20°C in water
Density: 2.44 g/cm3
Vapor Pressure: Not applicable (non-volatile)
Evaporation Rate: Not volatile
Partition Coefficient (n-octanol/water): Not determined
Flash Point: Not flammable
Auto-ignition Temperature: Not self-igniting
Explosive Properties: Not explosive
Oxidizing Properties: Not oxidizing
Chemical Stability: Stable under normal storage and handling conditions
Thermal Decomposition: Releases potassium and phosphorus oxides above 340°C
Reactivity: Reacts with strong acids to produce heat, could emit irritating gases
Hazardous Reactions: Contact with magnesium may produce flammable hydrogen gas
Incompatible Materials: Acids, strong oxidizers, magnesium
Acute Toxicity: Low toxicity, oral LD50 (rat) >5,000 mg/kg
Chronic Effects: Long-term exposure not linked to major health effects. Prolonged inhalation of dust may cause minor respiratory irritation.
Skin and Eye Irritation: Slightly irritating based on human and animal data
Carcinogenicity: No component classified as carcinogen by IARC, NTP, OSHA
Sensitization: Not known to cause sensitization
Mutagenicity: No evidence of mutagenicity
Reproductive Toxicity: Not classified as reproductive toxin
Ecotoxicity: Not considered hazardous in normal use but can increase nutrient load in water bodies, leading to eutrophication
Aquatic Toxicity: No acute toxicity expected for fish or invertebrates at typical levels
Persistence and Degradability: Completely dissociates in water forming naturally occurring ions
Bioaccumulation: Unlikely to bioaccumulate
Mobility in Soil: High water solubility, mobile in soil and water
Other Adverse Effects: Large discharges could disturb ecosystem balance due to phosphate enrichment
Waste Disposal Methods: Small quantities can be flushed to sewer with copious amounts of water if permitted by local regulations. Large quantities should go to licensed waste facility.
Contaminated Packaging: Clean container with water before disposal or recycling.
Precautions for Disposal: Avoid release to environment. Follow local, regional, and national regulations for disposal.
Special Precautions: None established
UN Number: Not regulated
UN Proper Shipping Name: Not classified as a dangerous good
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Marine Pollutant: No
Special Precautions: Ensure containers are tightly sealed. Prevent package rupture during transport.
OSHA Status: Not hazardous
TSCA: Listed
EINECS: 231-834-5
REACH Registration: Registered or exempt
SARA Title III Sections 302/304/311/312/313: Not subject to reporting
Canadian DSL/NDSL: Listed
Labeling Requirements: None assigned
Other Regulations: Use restrictions and requirements may vary; always comply with local, state, national, and international laws.
