Liquid Ammonium Sulfate Storage Solutions

Find the right Assmann tank for Liquid Ammonium Sulfate storage.

“In the past few years, we have been purchasing more and more tanks from Assmann because they are much higher quality.”

– Oddyssey Manufacturing Co

Liquid Ammonium Sulfate

What is Liquid Ammonium Sulfate?

Liquid Ammonium Sulfate (LAS) is an odorless, clear,  yellow to amber colored liquid. It’s most often used in municipal and industrial water and wastewater treatment for disinfection as a source of ammonia in chlorination.

Are there additional concerns for LAS storage?

Though temperature is not a primary concern when storing Liquid Ammonium Sulfate, this chemical should be stored in a cool, dry, well-ventilated area, away from moisture and incompatible substances. Our experts recommend that tanks be constructed of Linear or Crosslink Polyethylene, either singular or double walled. Additionally, we may recommend specific accessories for your storage solution, such as proper venting, fittings,  manways, joints, and secondary containment.

Specific Gravity
1.9 for 40% Solution


Fitting Materials
PVC & 316L SS

Gasket Materials

Hardware Materials
316L SS

Common Industries

LAS is a primary component of a variety of industries, including those listed below.

Water & Wastewater Treatment

Liquid Ammonium Sulfate is most often used in municipal and industrial water and wastewater treatment for disinfection as a source of ammonia in chlorination.


Additionally, agriculture industries use LAS as a fertilizer to provide nitrogen and sulfur to crops.


Utilized to improve flame-resistance, LAS reduces the flammability of textiles.

Liquid Ammonium Sulfate Chemical Guide

To learn more about LAS storage, download the guide below.

The Assmann Way

The Assmann difference is in the process. Assmann keeps quality first and failure far out of mind.

Uniform Wall Thickness

Uniform wall thickness provides better structural integrity compared to other tanks on the market. Because of its unified durability throughout, Assmann storage solutions are less susceptible to tears and spills.

Air Cooling

Air cooling eliminates a process related stress in rotomolding, where water cooling shocks the plastic and causes an abrupt stop to the curing process. Assmann is the only manufacturer who uses non-shielded molds with low temperature heat and gradual air cooling to ensure reliability that lasts.

Specific Gravity

Using a 1.9 rated tank gives additional wall thickness to help extend the lifespan of the storage tank. Assmann offers 1.9 rated storage tanks in either crosslink or linear polyethylene. For storing Liquid Ammonium Sulfate, we recommend crosslink polyethylene.


Under-venting is one of the most common causes for tank failure. When filling and draining tanks, it’s important to keep the tank from vacuum and pressure exposure. A vent two times the size of your largest inlet is required to avoid pressurization. Sometimes a larger vent is necessary when tanks are pneumatically filled. Assmann offers a variety of venting options in multiple sizes and configurations.

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Let us know more about your needs, so we can create the right solution.