Sodium Bisulfate Storage — NaHSO4 Dry Acid Pool pH-Down Tank
Storing Sodium Bisulfate? Start Here
Sodium bisulfate, commonly known as "dry acid," is a white crystalline solid used to lower pH levels in pools and for industrial cleaning. It's typically supplied in dry form to avoid the costs and hazards of transporting liquid acids. When dissolved in water, it creates a strongly acidic solution, making it effective for various applications like pool maintenance and equipment descaling. If you're handling sodium bisulfate, understanding its storage needs is crucial to ensure safety and effectiveness.
Can you store it in a poly tank?
Yes, sodium bisulfate can be stored in a poly tank. Polyethylene and polypropylene tanks are suitable for storing sodium bisulfate solutions, as they resist the acidic nature of the chemical. However, avoid using carbon steel, galvanized steel, or aluminum tanks, as these materials are susceptible to acid attack.
Key Issue: Moisture Control
Sodium bisulfate is hygroscopic, meaning it can absorb moisture from the air, leading to caking. To prevent this, ensure that the storage area is dry and well-sealed. Proper ventilation and humidity control are essential to maintain the quality of the stored chemical.
The safety that actually matters
- Use appropriate personal protective equipment (PPE) like gloves and goggles to prevent eye and skin irritation.
- Store in a dry, cool, and well-ventilated area to avoid moisture absorption and caking.
- Ensure proper labeling and handling procedures to prevent accidental exposure or misuse.
Common questions
- Can sodium bisulfate be stored outdoors?
- It's best to store it indoors in a controlled environment to prevent moisture absorption and caking.
- What type of gaskets should be used?
- Match gaskets to the manufacturer's compatibility chart, but EPDM or Viton are commonly suitable for acidic solutions.
- Is sodium bisulfate safe for pool use?
- Yes, it's widely used to lower pH levels in pools, but follow safety guidelines to prevent irritation.
Sodium Bisulfate storage tanks from OneSource
For sodium bisulfate storage, specify HDLPE_OR_XLPE rated to specific gravity 1.9. Verified, compatibility-matched options:
- Snyder Industries 22 Gallon ASTM XLPE Black Heavy Duty Vertical Storage Tank (1.9 SG)
- Snyder Industries 150 Gallon XLPE Chemical Feed Station Tank (1.9 SG)
- Snyder Industries 500 Gallon ASTM XLPE Black Double Wall Tank (1.9 SG)
- Snyder Industries 1500 Gallon 45 Degree XLPE Cone Bottom Tank in White (1.9 SG)
- Snyder Industries 5000 Gallon XLPE Vertical Liquid Storage Tank with ASTM Certification (1.9 SG)
Confirm chemical compatibility and a ZIP freight quote with our team at 866-418-1777.
Storing a corrosive acid? Material of construction is everything.
Acids attack the wrong metals fast. These vendor-neutral guides help you match resin, liner, and containment to your acid and concentration.
Explore: FRP & Fiberglass Tanks · Double Wall Tanks · Chemical Compatibility
Sources & References
All compatibility ratings, hazard classifications, and chemical identifiers on this page are sourced from authoritative third-party publications. Verify against the original references before final specification.
- PubChem Compound Database — entry for Sodium Bisulfate (CID 516919, CAS 7681-38-1). pubchem.ncbi.nlm.nih.gov. National Library of Medicine / NCBI. Canonical chemical-identity reference.
- Snyder Industries Chemical Resistance Recommendations — system-of-construction guidance for polyethylene chemical-storage tanks at industrial ASTM 1.9 SG design rating. SNY-3041 Chemical Resistance Chart. Snyder Industries, current edition. Resin + fitting + gasket + bolt MOC matrix.
- Equistar Technical Tip — Chemical Resistance of Polyethylene — LDPE / MDPE / HDPE rating chart by concentration and temperature, distributed by Enduraplas. enduraplas.com (PDF). Equistar polyethylene resin chemical-resistance data, distributed via Enduraplas.
- NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response. nfpa.org. NFPA 704 'fire diamond' health/flammability/instability/special-hazard rating system (0–4 scale).
- UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS), current revision. unece.org/transport/ghs. GHS pictograms, signal words, and H-statement codes referenced in this guide.
- ASTM D1998 — Standard Specification for Polyethylene Upright Storage Tanks, current edition. astm.org. Cited as the design-specific-gravity standard (typically 1.9 SG) for industrial chemical-service polyethylene tanks.
- NIOSH Pocket Guide to Chemical Hazards — occupational exposure limits, PPE, and IDLH data for Sodium Bisulfate. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.