Sodium Bicarbonate Storage — FDA GRAS Water/Pharma/Food Tank Selection

Storing Sodium Bicarbonate? Start Here

Sodium bicarbonate, commonly known as baking soda, is a mild alkaline salt widely used in industries ranging from water treatment to food production. It's considered safe and is recognized by the FDA as GRAS (Generally Recognized As Safe). When storing sodium bicarbonate, especially in solution form, it's important to choose the right tank to ensure long-term stability and safety.

Can you store it in a poly tank?

Yes, sodium bicarbonate can be stored in polyethylene (poly) tanks. High-Density Polyethylene (HDPE) and Cross-Linked Polyethylene (XLPE) tanks are suitable for both dry and dissolved forms at ambient temperatures. However, avoid using aluminum tanks, as sodium bicarbonate can slowly degrade the aluminum over time.

Temperature Sensitivity

Sodium bicarbonate begins to decompose at temperatures above 140°F, turning into sodium carbonate, carbon dioxide, and water. This means it's crucial to keep storage solutions below this temperature to maintain the chemical's integrity.

The safety that actually matters

• Ensure tanks are kept below 140°F to prevent decomposition.
• Use HDPE or XLPE tanks for best compatibility and longevity.
• Avoid aluminum tanks due to potential chemical reaction.

Common questions

What type of gasket should I use?

For sodium bicarbonate solutions, refer to the manufacturer's chart to match the right gasket material.

Can sodium bicarbonate be stored outdoors?

Yes, but ensure the tank is protected from extreme temperatures to prevent decomposition.

Is sodium bicarbonate safe for food processing?

Yes, it is FDA GRAS approved and widely used in food applications.