Hydrofluosilicic Acid Storage Solutions

Find a tank you can trust for Hydrofluosilicic Acid storage.

“Assmann Corporation had everything we needed for our challenges – venting and configurations, parameters were a few examples off the bat. They do a great job.”

– Hubbard-Hall Inc.

Hydrofluosilicic Acid

What is Hydrofluosilicic Acid?

Hydrofluosilicic Acid (H2SiF6), otherwise known as Fluorosilicic Acid of Silicofluoride, is primarily used in municipal water treatment as fluoridation. Common solution concentrations vary, but it is typically used in the form of a diluted solution containing around 25-30%.

What is the most effective storage solution for Hydrofluosilicic Acid?

Assmann recommends that tanks be constructed of Linear or Crosslink Polyethylene, and double walled. Double Wall Plastic Tanks provide the best protection against spills, making them the safest option for Hydrofluosilicic Acid. Additionally, our experts may recommend specific accessories for Hydrofluosilicic Acid storage, such as proper venting, fittings, joints, manways, and secondary containment.

Are there additional considerations for storing Hydrofluosilicic Acid?

Temperature is not a significant concern when storing Hydrofluosilicic Acid. However, this chemical is corrosive and can react violently with bases. Our polyethylene tanks offer a compatible storage solution.

Specific Gravity


Fitting Materials

Gasket Materials

Hardware Materials

Common Industries

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

Water Treatment

Hydrofluosilicic Acid is primarily used in water treatment for water fluoridation. It’s often added to public water supplies to increase fluoride ions, which have beneficial effects for dental health.

Hydrofluosilicic Acid Chemical Guide

To learn more about Hydrofluosilicic Acid 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, protecting your facility from the corrosive qualities of Hydrofluosilicic Acid.

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 Hydrofluosilicic Acid, 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.

How to Avoid Tank Problems

Temperature is not a significant concern when storing Hydrofluosilicic Acid. However, this chemical is corrosive and can react violently with bases. That means you’ll need the right storage tank to store Hydrofluosilicic Acid safely.

Material & Configuration

Double wall plastic tanks provide the best protection against spills, making it the safest option for Hydrofluosilicic Acid.

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