Product Name: Trisodium Phosphate Anhydrous (TSP-A)
Chemical Formula: Na₃PO₄
CAS Number: 7601-54-9
Use: Surface cleaning, water treatment, degreasing, textile processing, chemical manufacturing
Synonyms: Sodium phosphate, tribasic sodium phosphate, TSP
Supplier: Company details, including address and emergency contact number, should be clearly pasted onto the label.
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Acute aquatic toxicity (Category 3)
Signal Word: Warning
Hazard Pictograms: Exclamation mark
Hazard Statements: Causes skin and serious eye irritation, may be harmful to aquatic life
Precautionary Statements: Avoid breathing dust, wash hands after handling, protect eyes/face, prevent release into environment
Chemical Name: Trisodium Phosphate Anhydrous
Concentration: 98–100%
CAS: 7601-54-9
Impurities: Possible trace sodium pyrophosphate, sodium carbonate, but present at very low levels
Inhalation: Move to fresh air, keep at rest, seek medical help if symptoms persist
Skin Contact: Remove contaminated clothing, wash with plenty of water and soap, get medical attention for irritation
Eye Contact: Rinse with water for at least 15 minutes, holding eyelids open, immediate attention from a physician recommended
Ingestion: Rinse mouth, do not induce vomiting, call a doctor if large amount is swallowed or symptoms develop
Symptoms: Pain, redness, irritation, coughing, digestive discomfort if ingested
Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide
Hazards from Combustion: Does not burn, but may release toxic or irritating fumes if involved in a fire
Advice for Firefighters: Full protective gear and self-contained breathing apparatus recommended to avoid smoke inhalation
Explosion Data: Not combustible, not explosive
Personal Precautions: Wear protective clothing, gloves, eye protection, avoid breathing dust or getting on skin or in eyes
Environmental Precautions: Block drains to avoid contamination, keep material out of sewers and waterways
Cleanup Methods: Sweep or vacuum up without generating dust, place in container for proper disposal, wash residue with plenty of water
Handling: Avoid dust, keep container tightly closed, maintain good ventilation, do not eat, drink, or smoke around material
Storage: Store in a cool, dry area, keep away from acids and moisture, label containers properly, prevent spillage
Exposure Limits: Not specifically regulated by OSHA or ACGIH, but keeping aerosol exposure to minimum is a common practice
Engineering Controls: Ventilation with local exhaust, eyewash stations, emergency showers in work area
Personal Protective Equipment: Chemically resistant gloves, safety goggles, dust mask or respirator for dusty environments, lab coat or apron
Hygiene Measures: Wash hands before breaks, after handling, remove contaminated clothing immediately
Appearance: White, granular or crystalline powder
Odor: Odorless
pH: 11.5 to 12.5 (1% solution)
Melting Point: >100 °C (decomposition)
Boiling Point: Not applicable
Solubility: Soluble in water
Density: Approximately 2.5 g/cm³
Vapor Pressure: Not volatile
Other Data: Hygroscopic, can absorb moisture from the air, dust generation possible during handling
Chemical Stability: Stable under normal storage and handling, reacts with acids to produce heat and phosphoric acid
Conditions to Avoid: Moisture, acids, excessive heat
Incompatible Materials: Strong acids, aluminum, magnesium
Hazardous Decomposition Products: Sodium oxide fumes, phosphorus oxides, heat
Reactivity: Can react with aluminum or zinc to release hydrogen gas
Acute Toxicity: Not highly toxic but can cause irritation and discomfort at higher levels
Skin/Eye Irritation: Causes burns and lasting irritation, especially to eyes
Inhalation: Breathing excessive dust can lead to coughing, throat irritation
Ingestion: Large doses may provoke abdominal pain, vomiting, or diarrhea
Chronic Effects: Prolonged contact can intensify skin and eye irritation
Carcinogenicity: Not listed as a carcinogen by OSHA, IARC, or NTP
Toxicity: Harmful to aquatic life in large spills, may contribute to nutrient pollution, leading to algal blooms
Persistence and Degradability: Dissolves in water, actions like dilution and natural neutralization can reduce impact
Bioaccumulation: Not expected to accumulate in living organisms
Mobility in Soil: Highly mobile in water, easy to leach into groundwater if not controlled
Other Adverse Effects: Overuse in water treatment can cause pH shifts harmful to fish and aquatic plants
Waste Disposal Methods: Collect surplus and contaminated material, follow local regulations for hazardous chemical disposal
Packaging Disposal: Clean, then recycle or dispose of according to local and national rules
Environmental Precautions: Avoid unrestricted discharge into drains, restrict from entering watercourses, inform authorities in case of large spills
UN Number: Not classified as dangerous for transport
Transport Hazard Class: Not hazardous under current transport regulations
Packing Group: Not assigned
Label: Mark as corrosive if required by local law, ship in sturdy, sealed packaging to prevent dust release
Special Precautions: Prevent packaging damage, avoid wet conditions, label and document with safety instructions for handlers and receivers
OSHA Status: Regulated for workplace safety, covered by Hazard Communication Standard
EPA Status: Not specifically regulated as a hazardous substance, but restrictions on phosphates apply in some water treatment uses
TSCA: Listed on the US Toxic Substances Control Act inventory
EU Regulation: Listed under REACH, labeled for eye and skin irritation
Other National Regulations: Check with specific country laws on import, storage, and environment
