Trisodium Phosphate Storage — Na3PO4 TSP Cleaner + Boiler Tank

Storing Trisodium Phosphate? Start Here

Trisodium phosphate, or TSP, is a versatile cleaning agent and water treatment chemical. It's a white crystalline powder that dissolves in water to create a strongly alkaline solution. While it's effective for cleaning and industrial applications, TSP can irritate the skin and eyes, so proper handling and storage are key. Whether you're using it for household cleaning, industrial degreasing, or as a food additive, understanding how to safely store TSP is crucial for maintaining safety and efficiency.

Can you store it in a poly tank?

Yes, you can store TSP in a poly tank. High-density polyethylene (HDPE), cross-linked polyethylene (XLPE), polypropylene (PP), and polyvinylidene fluoride (PVDF) are all suitable for storing TSP solutions. These materials are resistant to the alkaline nature of TSP, making them a reliable choice for storage.

Watch out for crystallization in cold weather

One key issue with storing TSP solutions is crystallization at low temperatures. If the temperature drops below 32°F, solutions with 15% concentration can start to crystallize, forming a solid dodecahydrate. To prevent this, consider using heat tracing in colder climates to maintain a stable temperature.

The safety that actually matters

• Always use personal protective equipment (PPE) to avoid skin and eye contact.
• Store in a well-ventilated area to minimize inhalation risks.
• Ensure tanks are clearly labeled to prevent accidental misuse or mixing.

Common questions

Can TSP damage metal surfaces?

Yes, TSP can attack aluminum, zinc, and galvanized surfaces. Use compatible materials like stainless steel or poly tanks.

What gaskets should I use with TSP?

Both EPDM and Viton gaskets are suitable for TSP storage. Match gaskets to the manufacturer chart for best results.

Is TSP safe for food applications?

Yes, TSP is FDA-approved as a GRAS food additive, often used in processed cheese and canned foods.