Product Name: Dicalcium Phosphate
Chemical Formula: CaHPO4·2H2O
Other Names: Calcium hydrogen phosphate, DCP
Recommended Use: Animal feed additive, pharmaceutical excipient, food additive, fertilizer materials
Supplier/Manufacturer Details: [Insert company name and address]
Contact Number: [Insert emergency and information phone numbers]
Classification: Not classified as hazardous under current global transport and workplace safety standards.
Potential Health Hazards: Inhalation can irritate respiratory tract; contact with eyes may cause mild irritation; prolonged skin contact might cause some dryness or minor irritation.
Label Elements: No required pictograms; precautionary statements recommend avoiding inhalation of dust and direct contact with eyes.
Signal Word: None required
Emergency Overview: White or off-white powder, minimal odor. Dust may aggravate existing lung conditions.
Chemical Identity: Dicalcium phosphate dihydrate
CAS Number: 7757-93-9
Content: Generally over 95% by weight
Impurities: Possible trace amounts of calcium carbonate, magnesium phosphate, fluoride ions depending on production batch
Molecular Weight: 172.09 g/mol
Inhalation: Move to fresh air. Rinse nose and mouth with water if dusty conditions are involved. Seek medical attention for any persistent difficulty breathing.
Skin Contact: Wash skin thoroughly with soap and plenty of water. Remove contaminated clothing. Seek medical advice if irritation occurs.
Eye Contact: Rinse cautiously with water for several minutes, removing contact lenses if present and easy to do. Continue rinsing thoroughly. Get medical attention if irritation persists.
Ingestion: Rinse mouth with water. Drink water to dilute product. Do not induce vomiting unless directed by a medical professional. Obtain medical advice if large quantities are ingested or discomfort develops.
Most Important Symptoms: Irritation, coughing, eye discomfort, mild skin irritation
Medical Attention/Special Treatment: Symptomatic treatment as required. No special antidote.
Flammability: Not flammable
Suitable Extinguishing Media: Use water spray, foam, dry powder, or CO2 for surrounding combustibles
Hazards from Product Combustion: Does not burn, but decomposition in strong fire may produce phosphorus oxides and calcium oxide
Advice for Firefighters: Use protective equipment. Wear self-contained breathing apparatus if dust or gases are present from surrounding fire.
Fire/Explosion Risk: Not considered an explosion hazard under normal conditions
Personal Precautions: Use appropriate protective gear such as gloves, goggles, and dust mask. Control dust with ventilation or water spray.
Environmental Precautions: Prevent entry into waterways, drains, or soils in large quantities. Inform local environmental authorities if significant escape occurs.
Spill Cleanup Methods: Sweep or vacuum up material, using methods that avoid creating dust. Place recovered material in a suitable, labeled container for disposal.
Reference for Other Sections: Refer to handling, PPE, and disposal procedures elsewhere in the document.
Handling: Work in a well-ventilated area to minimize dust. Wear suitable protective clothing and wash hands after handling. Avoid eating, drinking, or smoking during use.
Storage: Store in a dry, cool, well-ventilated place in tightly closed original containers. Keep away from strong acids, strong oxidizers, and moisture sources. Keep out of reach of children and unauthorized personnel.
Incompatibilities: Strong acids (liberates phosphoric acid and may release toxic gases), hydrofluoric acid (forms corrosive compounds), avoid contact with food and drink commodities if used outside regulated contexts.
Occupational Exposure Limits: No established national exposure limit for DCP, but keep dust levels below nuisance dust limits (e.g., OSHA PEL: 15 mg/m³ total dust; 5 mg/m³ respirable fraction).
Ventilation: Ensure local exhaust or general ventilation to keep airborne levels low.
Personal Protective Equipment: Dust mask or respirator (NIOSH-approved), chemical safety goggles or face shield, chemical-resistant gloves, protective clothing as necessary.
Hygiene Measures: Wash hands and exposed skin after handling. Do not eat, drink, or smoke near product. Remove contaminated clothing and wash before reuse.
Environmental Exposure Controls: Prevent dust emissions into air and water. Follow all local environmental regulations.
Appearance: White to off-white, odorless powder or granular solid
Odor: None
pH (1% solution): Between 6 and 7
Melting Point: Decomposes above 200°C (392°F) without melting
Solubility in Water: Slight (about 0.02 g/100 mL at 25°C)
Relative Density: 2.31 g/cm³
Vapor Pressure: Negligible
Boiling Point: Not applicable (decomposes)
Partition Coefficient: Not applicable
Flash Point: Not flammable
Auto-Ignition Temperature: Not self-igniting
Evaporation Rate: Not applicable
Other Properties: Stable under normal storage; dust may pose a slipping hazard if spilled on smooth surfaces.
Stability: Stable under normal conditions of storage and use.
Reactivity: May react with strong acids, generating calcium salts and phosphoric acid. In contact with hydrofluoric acid, may produce toxic hydrogen fluoride gas.
Hazardous Decomposition Products: Calcium oxide, phosphorus oxides if heated to decomposition.
Conditions to Avoid: Excessive heat, moisture, sources of strong acid vapors.
Incompatible Materials: Strong acids, hydrofluoric acid, strong oxidizers.
Polymerization: Will not occur.
Likely Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Toxicity: Oral LD50 (rat) >10,000 mg/kg (very low acute toxicity)
Inhalation: Dust can irritate upper respiratory tract. Pre-existing respiratory conditions can be aggravated.
Skin Contact: Prolonged or repeated contact may cause slight irritation or dryness.
Eye Contact: Dust may cause redness, discomfort, or physical irritation.
Ingestion: Low toxicity, but large amounts may cause digestive upset (nausea, vomiting, diarrhea).
Chronic Effects: No evidence of sensitization, carcinogenicity, mutagenicity, or reproductive toxicity from standard exposure levels.
Other Information: Occupational exposure rarely results in severe symptoms; good safety practices reduce potential issues.
Aquatic Toxicity: Not considered acutely toxic to aquatic organisms at typical environmental concentrations.
Persistence and Degradability: Inorganic mineral, not subject to biological degradation. May slowly dissolve in water, releasing calcium and phosphate ions.
Bioaccumulative Potential: Does not bioaccumulate.
Mobility in Soil: Low mobility; binds strongly to soil particles.
Other Adverse Effects: Large-scale releases may contribute to eutrophication in water bodies, promoting algal growth; affects natural nutrient cycles.
Waste Disposal: Dispose of via approved local landfill or other authorized facility in accordance with national and local regulations.
Container Disposal: Empty containers thoroughly before recycling or disposal. Rinse with water if required.
Special Considerations: Do not discharge into drains, surface water, or soils in appreciable quantities. Ensure waste material is not accessible to children or animals.
Regulatory Waste Codes: Check local authority listings for non-hazardous waste codes related to calcium phosphate compounds.
UN Number: Not regulated as a dangerous good
Transport Hazard Class: None assigned
Packing Group: None required
Proper Shipping Name: Dicalcium phosphate
Special Precautions: Protect from moisture and prevent inhalation of dust by handlers.
Environmental Hazards: Not regulated for road, rail, sea, or air shipment. No specific transport restrictions.
Labelling: No hazard symbol or risk phrase required by GHS, OSHA, or EU CLP for occupational exposure.
Inventory Status: Listed on TSCA, EINECS, DSL, and other major chemical inventories.
Regulatory Restrictions: Subject to regulations governing food and feed use. Ensure compliance with specific industry and country requirements.
Other Regulatory: Monitored for environmental discharges under nutrient management programs in some regions.
Worker Protection: Covered by safety guidelines for particulate materials; ensure site-specific employee education and training programs.
