Storage Tank — Oxidizers/Disinfectants
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LibertyCES has documented Storage Tank in Oxidizers/Disinfectants service, including Sodium Hypochlorite and Hydrogen Peroxide. Wetted materials to confirm: EPDM, 316SS and dedicated resin #880059. Documented models include Ace Roto-Mold Vertical Tanks and Peabody ProChem. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Notes from the vendor documentation
Poly Processing caps on-site hypochlorite generation (0.8%) at 4,000 gallons without engineering review; hinged-weighted manway vents at 0.25psi for H2O2 decomposition.
Materials documented for this service
- EPDM (fails per Ace Roto-Mold: flat 'N')
- 316SS (fails: flat 'N')
- dedicated resin #880059 (Snyder)
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| Sodium hypochlorite — EPDM/316SS resistance rating | EPDM rated flat 'N' (Not Resistant) and 316 stainless steel rated flat 'N' at 12%, 16.5%, and >16.5% concentrations | Ace Roto-Mold — Application Guidelines (Doc WIC8.4-01, 12-2024) |
| Sodium hypochlorite — Santoprene rating | Santoprene rated 'R' (Resistant) across all tested concentrations | Ace Roto-Mold — Application Guidelines (Doc WIC8.4-01, 12-2024) |
| Sodium hypochlorite dedicated resin | Opaque white UV-block-out resin #880059, available up to 12,500 gallons | Snyder Industries — Industrial Tanks & Fittings |
| Sodium hypochlorite max concentration/SPG | Rated to 12.5% concentration, 1.5 specific gravity (1.9 preferred by some customers as an added corrosion barrier) | Peabody Engineering — General Product Catalog (July 2026) |
| Hydrogen peroxide max concentration/SPG | Rated to 50% concentration, 1.9 specific gravity; welded PE fittings preferred over flanged/coupling connections | Peabody Engineering — General Product Catalog (July 2026) |
| Hinged-weighted manway relief pressure | Opens at 0.25 psi to vent pressure buildup during rapid H2O2 decomposition | Poly Processing — Fittings & Accessories |
Sodium hypochlorite degrades from UV exposure and dissolved transition-metal buildup over time; a hinged-weighted manway (opens at 0.25 psi) is the standard mitigation for hydrogen peroxide's own decomposition-driven pressure buildup — fitting a standard threaded lid instead of the hinged-weighted design on H2O2 service removes the intended pressure-relief path.
EPDM is one of the most common general-purpose tank gaskets in the industry, and it rates a flat 'N' — Not Resistant — for sodium hypochlorite at every concentration Ace Roto-Mold tested. Specifying it here isn't a minor mismatch, it's a gasket that will fail; James Riggins treats sodium hypochlorite tanks as a materials-first spec — dedicated resin, non-EPDM elastomer — rather than a generic poly tank with a generic gasket.
Every material and product claim on this page traces to real, vendor-published documentation on file with LibertyCES. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm current specifications with the manufacturer and request a spec review before final specification.
FAQ
Can Storage Tank handle Oxidizers/Disinfectants?
Poly Processing caps on-site hypochlorite generation (0.8%) at 4,000 gallons without engineering review; hinged-weighted manway vents at 0.25psi for H2O2 decomposition.
What wetted materials should Storage Tank use in Oxidizers/Disinfectants service?
Materials documented for this service: EPDM (fails per Ace Roto-Mold: flat 'N'), 316SS (fails: flat 'N'), dedicated resin #880059 (Snyder). Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Oxidizers/Disinfectants chemicals does this cover?
Named chemicals in this documentation: Sodium Hypochlorite, Hydrogen Peroxide.
Which Storage Tank models are documented for Oxidizers/Disinfectants?
Documented examples include Snyder Vertical/Horizontal/Chemical Feed Station tanks, Ace Roto-Mold Vertical Tanks, Peabody ProChem (hinged-weighted manway for H2O2).
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated