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Product Name: Tricalcium Phosphate
Chemical Formula: Ca3(PO4)2
CAS Number: 7758-87-4
Synonyms: Calcium Phosphate Tribasic, TCP
Recommended Use: Food additives, fertilizers, dental products, ceramics, nutritional supplements, laboratory reagents
Manufacturer/Supplier: Information to be sourced from package or distribution invoice
Contact Info: Emergency phone and supplier contact information come from SDS packaging
GHS Classification: Not classified as hazardous under current OSHA (29 CFR 1910.1200) criteria
Physical Hazards: Dust may irritate respiratory system
Health Hazards: Prolonged skin contact can lead to mild irritation; eye contact may cause transient discomfort such as redness or watering
Environmental Hazards: Large amounts may disturb aquatic environments through physical deposition, but product is not acutely toxic
Signal Word: None required
Pictograms: None required
Precautionary Statements: Avoid generating dust; use in a well-ventilated area; avoid contact with eyes and skin
Chemical Name: Tricalcium Phosphate
Common Name: Calcium Phosphate Tribasic
Concentration: 98%-100%
CAS Number: 7758-87-4
Impurities: May include trace levels of magnesium, carbonate, or silica, with levels dependent on manufacturing source
Eye Contact: Rinse immediately with plenty of water, lifting upper and lower eyelids occasionally; seek medical attention if irritation persists
Skin Contact: Wash exposed skin with mild soap and water; remove contaminated clothing
Inhalation: Move to fresh air; if discomfort occurs, consult a healthcare provider
Ingestion: Rinse mouth with water; drink water to dilute; seek medical help if symptoms or discomfort appear
Flammability: Product does not burn or sustain combustion
Suitable Extinguishing Media: Use any media appropriate for surrounding materials: water spray, foam, carbon dioxide, or dry chemical
Hazardous Combustion Products: Decomposition in fire may yield calcium oxides and phosphorus oxides
Special Protective Equipment: Firefighters should wear self-contained breathing apparatus if dust or fumes are present
Specific Hazards: Thermal decomposition may form dust or smoke, causing respiratory irritation if inhaled
Personal Precautions: Avoid dust formation; wear appropriate protective equipment to prevent inhalation or eye contact
Environmental Precautions: Prevent bulk spills from entering waterways to minimize sediment build-up
Methods for Containment and Clean Up: Collect spill using dustless methods, such as damp sweeping or HEPA vacuuming; place in appropriate container for disposal
Handling: Minimize dust generation; wear eye and respiratory protection in poorly ventilated areas or where dust clouds are possible; wash hands after handling
Storage: Keep container tightly sealed in dry, cool, well-ventilated space; avoid contact with acids to prevent decomposition
Incompatibilities: Strong acids; acidic conditions may release phosphoric acid or calcium salts
Exposure Limits: OSHA PEL for nuisance dusts: 15 mg/m3 (total dust), 5 mg/m3 (respirable fraction)
Engineering Controls: Use local exhaust or general room ventilation to manage airborne particles
Personal Protective Equipment: Safety glasses or goggles for eye protection; NIOSH-approved dust mask if risk of inhalation exists; gloves recommended to avoid skin irritation; wash hands after exposure
Appearance: White, odorless crystalline powder
Odor: None
Odor Threshold: Not applicable
pH (10% Suspension): Approximately 7.0-8.0
Melting Point / Freezing Point: Decomposes above 1,670°C, no true melting
Boiling Point: Not applicable
Solubility: Poorly soluble (less than 1 g/L in water); greater solubility in acidic environments
Vapor Pressure: Not relevant
Vapor Density: Not relevant
Relative Density: About 3.14 (water = 1)
Partition Coefficient: Not applicable
Decomposition Temperature: Above 1,670°C
Evaporation Rate: Not relevant for solid
Chemical Stability: Stable under normal temperatures and pressures
Reactivity: Little hazard under ordinary conditions; reacts with strong acids to form phosphoric acid and calcium salts
Possibility of Hazardous Reactions: No hazardous reactions expected under intended use
Conditions to Avoid: Exposure to strong acids, excessive moisture, generating dust clouds
Hazardous Decomposition Products: Exposure to high heat or strong acid releases calcium oxide, phosphorus oxides
Routes of Exposure: Inhalation, ingestion, skin, or eye contact
Acute Effects: Ingestion of large quantities may cause digestive discomfort; inhalation of dust leads to transient respiratory irritation
Chronic Effects: No evidence for significant systemic toxicity in normal use settings
Carcinogenicity: Not listed by IARC, NTP, or OSHA as a carcinogen
Mutagenicity: No available data indicating mutagenic properties
Reproductive Toxicity: Studies indicate low risk; product used as dietary calcium source in regulated amounts
LD50/LC50: Oral LD50 (rat) > 5,000 mg/kg, indicating low acute toxicity
Ecotoxicity: Not classified as ecotoxic based on physical-chemical nature;
Persistence and Degradability: Inorganic material; not considered biodegradable, will persist as mineral
Bioaccumulation: Does not bioaccumulate; dissociates to calcium and phosphate ions, which are natural in soil and water
Mobility in Soil: Low mobility as undissolved solid, forms stable compounds in soils
Other Adverse Effects: Large discharges may increase mineral loading in local sediments but do not threaten aquatic ecosystems under typical release conditions
Waste Disposal: Dispose of excess or spilled material in accordance with local, state, and federal regulations for non-hazardous solid waste
Container Handling: Rinse empty containers and recycle or dispose as chemical waste, making sure residues do not contaminate water bodies
Method of Disposal: Avoid dumping in sewers or natural waterways; landfill is preferred for bulk waste
UN Number: Not regulated
UN Proper Shipping Name: Not restricted
Transport Hazard Class: Non-hazardous
Packing Group: Not applicable
Environmental Hazards: Not considered environmentally hazardous cargo
Special Precautions: Protect packaging to prevent breaching or dust spills during transit
OSHA Hazard Communication Standard: Product not classified as hazardous
TSCA (Toxic Substances Control Act): Listed
SARA Title III: Not subject to reporting under Sections 302, 304, 313
California Prop 65: Not listed
Reach Status (EU): Registered or exempt
FDA Status: Approved as a food additive in regulated concentrations
Other Regulations: Meets requirements for use in agriculture, food, pharmaceutical, and industrial products, based on purity and intended uses
