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FDC™ Sodium Bisulfate Anhydrous | Sodium Hydrogen Sulfate
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sodium bisulfate 500lbs
sodium bisulfate bulk

FDC™ Sodium Bisulfate Anhydrous | Sodium Hydrogen Sulfate

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Lower Your pH Level and More With This Safer Alternative to Muriatic Acid

sodium bisulfate banner

Sodium bisulfate, also known as sodium hydrogen sulfate (NaHSO4), is a dry acid salt used primarily to lower pH and is easily soluble in water. This dry granular product is also used in a number of technical applications. During it’s production, Sodium Bisulfate retains one of the hydrogen ions from sulfuric acid, thereby giving it acidic properties. This helps classify it for industrial uses.

Considered GRAS (Generally Recognized as Safe) by the FDA, sodium bisulfate is an important ingredient in household cleaners, acidifiers, swimming pool products and many others.

Factory Direct Chemicals carries anhydrous, technical-grade sodium hydrogen sulfate that can be safely shipped and stored. Our product comes in a perfectly sized container with a tight, twist-off lid for proper storage.

  • Highly effective in lowering the pH in swimming pools, spas and boilers.
  • Because of it’s consistent particle size, Sodium Bisulfate is compatible with most cleaning formulas. Effectively cleans cement, railroad cars, brass, lavatories, showers and metals.
  • Highly effective in cleaning showers and bathrooms that have scale build up, mineral deposits or rust stains
  • Removes layers of oxidation from jewelry, and can also help reduce scale, mineral deposits or high pH levels in boilers.
  • Safer and just as effective to use as a sulfuric acid or muriatic acid replacement.



Use Sodium Bisulfate for pool treatment

ph reducer for pools

Instead of using harmful chemicals like Muriatic Acid, try using a safer alternative by using Sodium Bisulfate. It can be used for pH reduction in both swimming pools and spas. Usually, 1-2lbs applied in a 10,000 gallon pool will do the trick. If after 1-2 hours the pH is above 7.8, repeat the treatment until the pH is between 7.2 and 7.6. For more detailed information, please refer to the featured images on this page.

boiler blowoutBoiler Water Treatment

Sodium Bisulfate is also used as a descaler in boilers, cooling towers and water lines. It helps clean and adjust the pH level as well. Use Sodium Bisulfate to reduce scale, mineral deposits and high pH levels.

jewelry cleaner

Cleans Jewelry

You can also make a jewelry pickling solution to help remove scale, rust or layers of oxidation. All you need is vinegar, water, sodium bisulfate and baking soda. See the above pictures for more detailed info.


cleansing compound for brassCleaning Compounds

Because of its consistent particle size, Sodium Bisulfate is compatible with most cleaning formulas. It’s been used to clean cement, railroad cars, brass, lavatories, showers, and metals. A typical cleaning formulation consists of 70% Sodium Bisulfate by weight with salt, soda ash, surfactant and dye. Perfect for hard water that generate iron deposits.

toilet rust

Remove Rust

Sodium Bisulfate can also help remove rust stains on porcelian as well as calcium and mineral deposits. You can even use it as a drain opener since it will help create a harsh environment inside pipes by lowering the pH level.


Metal and Brass Cleaning: Mix approximately 12oz of sodium bisulfate to 1 gallon of water. You can use it as an acid bath for tools, brass, metals or a cleaning solution for bathrooms

Clean Jewelry: Bring 1/2 cup of vinegar and 1/2 cup of water to a boil and pour it into a glass container. Then pour in 1 tsp of sodium bisulfate. Let the jewlery soak in it, turning at least 1 time to ensure all areas are covered. Then while it's soaking, mix 1 tsp of baking soda with a cup of warm water separately. When your jewelry looks clean, put it into the baking soda solution to neutralize the chemicals that are left on it. Then rinse and dry off.

Pool pH Reducer: Turn off the jets and pour in approximately 1-2lbs per 10,000 gallons of water. Wait about 6 hours, and test pool alkalinity and pH level. For more detailed info, please refer to the featured images above on this page.

Why should you order from us?

Satisfaction and Money Back GuaranteeAt Factory Direct Chemicals, our dedication to our customers helps us stand out—and above—the competition. Enjoy: 

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