Linear Alkylbenzene Sulfonate Storage — LAS Detergent Surfactant Tank Selection

Storing Linear Alkylbenzene Sulfonate? Start Here

Linear alkylbenzene sulfonate (LAS) is a key ingredient in many detergents and cleaners. It comes in two main forms: the acid form (LABSA) and the neutralized sodium salt. LABSA is a thick, amber liquid that needs to be kept warm (50-60°C) to stay fluid, while the sodium salt is a paste that's ready to use. Whether you're running a detergent manufacturing plant or managing a cleaning supply operation, knowing how to store these chemicals properly is crucial.

Can you store it in a poly tank?

For the neutralized LAS sodium salt, yes, you can use standard polyethylene tanks. However, for LABSA, which is a strong acid, you'll need tanks made from acid-resistant materials like FRP vinyl ester or 316L stainless steel. Polyethylene is only suitable for short-term storage at ambient temperatures before neutralization.

Key Issue: Temperature Control

LABSA needs to be stored at a consistent 50-60°C to maintain its viscosity. This requires heated tanks with proper insulation and heat tracing. Without this, the acid can thicken and become difficult to pump, disrupting your operations.

The safety that actually matters

• Always use acid-resistant materials for LABSA to prevent corrosion.
• Ensure tanks are equipped with heat tracing to maintain the necessary temperature.
• Regularly inspect gaskets and fittings for compatibility and wear.

Common questions

Can I use HDPE tanks for both forms of LAS?

HDPE tanks are suitable for the sodium salt but not for LABSA, which requires acid-resistant materials.

What gaskets should I use?

EPDM gaskets are fine for the sodium salt, but for LABSA, use Viton gaskets for better resistance.

How do I maintain the temperature for LABSA storage?

Use tanks with heat tracing and insulation to keep LABSA at 50-60°C.