Sodium Nitrate Storage — NaNO3 Chile Saltpeter + CSP Solar Salt Tank

Storing Sodium Nitrate? Start Here

If you're looking to store sodium nitrate, you're dealing with a versatile chemical used in everything from agriculture to solar power. It's a white crystalline solid that dissolves easily in water, making it useful in both dry and liquid forms. Whether you're using it for heat treating, food processing, or as a fertilizer, it's important to know the best way to store it safely.

Can you store it in a poly tank?

Yes, you can store sodium nitrate solutions in polyethylene tanks. Poly tanks are suitable for aqueous solutions up to 70% concentration. However, if you're dealing with molten sodium nitrate, you'll need specialized metal tanks like stainless steel or nickel alloys.

Watch out for crystallization

One key issue with sodium nitrate solutions is crystallization at low temperatures. When temperatures drop below 30°F, a 30% solution can start to crystallize. In colder climates, it's crucial to use heat tracing to prevent this from happening.

The safety that actually matters

• Store dry sodium nitrate away from combustible materials like wood to prevent fire risks.
• Use proper gaskets, such as EPDM, for aqueous solutions to ensure a secure seal.
• Regularly inspect tanks and fittings for any signs of wear or leaks.

Common questions

Can sodium nitrate solutions be stored in cold climates?

Yes, but you'll need heat tracing to prevent crystallization.

Is polyethylene suitable for all sodium nitrate applications?

Polyethylene is fine for aqueous solutions, but not for molten sodium nitrate.

What precautions should I take with dry sodium nitrate?

Keep it away from combustibles to avoid creating a fire hazard.