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Product Name: Sodium Aluminium Phosphate
Other Names: SALP; Sodium Aluminum Phosphate; Food Additive E541
Recommended Use: Food processing (mainly as a leavening agent in baked goods), chemical manufacturing
Chemical Formula: NanAlmHx(PO4)y
CAS Number: 7785-88-8
Supplier Details: Refer to specific supplier for address and contact information
Emergency Phone: Refer to supplier information or local poison control
GHS Classification: Not classified as hazardous according to GHS
Main Hazards: Inhalation and ingestion can irritate mucous membranes, eyes, and skin. Contact with fine dust may worsen preexisting respiratory problems. Consuming large quantities can impact bone health.
Pictograms: None required for food-grade SALP
Signal Word: None
Hazard Statements: May cause mild irritation to skin, eyes, and respiratory tract
Precautionary Statements: Avoid breathing dust, wash hands thoroughly after handling, avoid eating or smoking when handling the product
Chemical Identity: Sodium Aluminium Phosphate
Content: Typically 98-100% by weight
Impurities: Trace amounts of sodium phosphate, aluminum phosphate, naturally occurring minerals
Molecular Weight: Varies by specific formulation (most common: NaH14Al3(PO4)8, MW ~712 g/mol)
Eye Contact: Rinse with plenty of water for several minutes while holding eyelids apart. Remove contact lenses if easy to do so. If irritation persists, get medical advice.
Skin Contact: Wash with soap and water. Remove contaminated clothing. If redness or discomfort continues, seek medical care.
Inhalation: Move person to fresh air. Support breathing as needed. If symptoms (cough, shortness of breath) develop, seek medical attention.
Ingestion: Rinse mouth thoroughly. Drink water to dilute if victim is conscious. Do not induce vomiting. Get medical attention if a large amount is swallowed or if symptoms appear.
Suitable Extinguishing Media: Use water, carbon dioxide, foam, or dry chemical extinguishers. Product itself is not flammable, but packaging may burn.
Specific Hazards: Thermal decomposition releases irritating or toxic fumes such as sodium oxides, phosphorous oxides, and aluminum oxides.
Protective Equipment: Firefighters wear self-contained breathing apparatus and protective suits in heavily contaminated areas.
Special Precautions: Avoid dispersing dust into the air. Prevent runoff from entering drains or water courses.
Personal Precautions: Use dust mask, gloves, and protective goggles. Avoid breathing dust. Ensure good ventilation.
Clean-Up Methods: Sweep up using method to minimize dust production. Collect and place in suitable container for disposal. Wash spill area with water.
Environmental Procedures: Prevent product from entering drains, sewers, and water ways. Avoid releases to the environment.
Handling: Use only in well-ventilated areas. Avoid dust generation and inhalation. After handling, wash hands and remove contaminated clothing.
Storage: Store product in a dry, cool, well-ventilated area. Keep containers closed to avoid moisture uptake and contamination. Protect from direct sunlight, acidic environments, and incompatible substances (strong acids and alkalis).
Engineering Controls: Use local exhaust ventilation or process enclosure to control airborne dust. Facilities for eye washing and washing hands should be available.
Exposure Limits: OSHA/NIOSH do not specify limits for SALP, but nuisance dust limits (15 mg/m3 total dust, 5 mg/m3 respirable) apply.
Personal Protective Equipment: Wear dust proof goggles or safety glasses, gloves, and dust mask (N95 or equivalent). Use full cover work clothing.
Hygiene Measures: Do not eat, drink, or smoke in work area. Wash hands after handling and before meals.
Appearance: White or off-white, fine powder
Odor: Odorless
pH (1% solution): 8.0 – 9.5
Solubility in Water: Slightly soluble (varies by grade and formulation)
Melting Point/Freezing Point: Decomposes at >150°C
Boiling Point: Not applicable
Flash Point: Not flammable
Vapor Pressure: Not applicable
Density: Approximately 2.5 – 2.7 g/cm3
Other Data: Stable under normal conditions
Chemical Stability: Stable in ambient temperature and recommended storage conditions
Conditions to Avoid: Exposure to moisture, humidity, and strong acidic or basic environments
Incompatible Materials: Strong acids, strong bases
Hazardous Decomposition Products: Sodium oxides, aluminum oxides, phosphorus oxides under heated conditions
Polymerization: Will not occur
Acute Toxicity: Low acute oral toxicity, estimated LD50 (rat) >2000 mg/kg
Skin/Eye Contact: Can cause temporary eye and skin irritation
Inhalation: Dust can irritate respiratory tract. Prolonged inhalation may aggravate respiratory diseases.
Chronic Effects: No known carcinogenic, mutagenic, or reproductive toxicity found in standard studies. Prolonged high intake of phosphates and aluminum compounds may affect bone and kidney function.
Sensitization: Not classified as a sensitizer
Ecotoxicity: Not expected to be dangerous to aquatic or terrestrial organisms at typical concentrations.
Mobility: Insoluble in water, settles in soil and water bodies
Persistence and Degradability: Inorganic material—does not degrade but may become part of the natural phosphorus cycle
Bioaccumulation: Not likely to bioaccumulate due to low solubility
Other Adverse Effects: High concentrations may cause eutrophication in sensitive water bodies
Product Disposal: Dispose of unused material as non-hazardous waste in accordance with local, state, and federal regulations. Avoid release into the environment.
Container Disposal: Containers and packaging should be emptied and sent for recycling or disposal according to government requirements.
Waste Treatment: Physically separate from domestic waste; do not wash into sewers or natural water courses.
UN Number: Not regulated for transport
UN Proper Shipping Name: Not regulated
Transport Hazard Class: Not hazardous
Packing Group: None
Special Precautions: Prevent physical damage to packaging. Avoid generating dust during transport and unloading.
TSCA Status: Listed on the US Toxic Substances Control Act inventory
Food Additive Approval: Approved by FDA for use as a food additive (21 CFR 182.1781, 21 CFR 182.1787)
WHMIS Classification (Canada): Not controlled
REACH Status (EU): Exempt as food additive
SARA Title III: Not subject to reporting requirements
Right to Know: Listed in state and national chemical inventories as sodium aluminium phosphate
