Sodium Gluconate Retarder Concrete Admixture Tank Selection

Storing Sodium Gluconate Retarder? Start Here

If you're involved in concrete construction, especially in hot weather, sodium gluconate retarder might be your go-to chemical. It's a sugar-derived salt that helps extend the setting time of concrete, making it ideal for long-haul deliveries and architectural pours. Typically, it's used in a liquid form, stored in large tanks at ready-mix plants and admixture facilities. Understanding the best storage options is crucial to maintaining its effectiveness.

Can you store it in a poly tank?

Yes, you can store sodium gluconate retarder in a polyethylene (poly) tank. High-density polyethylene (HDPE) tanks are the standard choice for this chemical, offering full compatibility. They are widely used in the industry for storing the liquid form of sodium gluconate.

Watch out for metal corrosion

Sodium gluconate is a strong metal chelator, which means it can corrode metals like carbon steel, aluminum, and galvanized steel. It's important to avoid these materials in your storage setup. Stick to HDPE, PVC, CPVC, or 316L stainless steel for any parts that will come into contact with the chemical.

The safety that actually matters

• Use only compatible materials like HDPE and 316L stainless steel.
• Avoid storing in carbon steel or aluminum tanks.
• Ensure tanks are properly labeled and located in a safe area.

Common questions

Can sodium gluconate retarder freeze?

Yes, it can freeze in cold temperatures. Keep it in a temperature-controlled environment if necessary.

What gaskets should I use?

EPDM and Viton gaskets are both suitable for use with sodium gluconate.

Is it safe to use with aluminum fittings?

No, sodium gluconate will corrode aluminum. Use compatible materials like HDPE or 316L stainless steel instead.