Ammonium Chloride Storage — Galvanizing Flux, Pharma, Metal Treatment
Storing Ammonium Chloride? Start Here
Ammonium chloride (sal ammoniac) is used for galvanizing flux, plating, and pharma process water. It's mild and stores easily in a poly tank — the only nuance is temperature: hot flux-bath service wants polypropylene rather than HDPE.
Can you store it in a poly tank? Yes.
- Ambient (plating, pharma, battery): HDPE or XLPE handles saturated ammonium chloride well.
- Hot flux baths (140–150°F): use polypropylene — HDPE is marginal above ~130°F.
It's mildly acidic with chloride, so EPDM gaskets and 316SS bolts hold up; keep bare/galvanized steel off wetted parts.
The safety that actually matters
- Low-hazard (mild irritant) — basic PPE, vented tank, 110% containment.
- Match material to temperature — PP for hot flux service.
Common questions
- HDPE or PP for ammonium chloride?
- HDPE/XLPE for ambient service; polypropylene for hot flux baths (140–150°F), where HDPE gets marginal.
- Any corrosion concern?
- It's mild — standard gaskets hold. Just keep bare/galvanized steel off the wetted parts.
Ammonium Chloride storage tanks from OneSource
For ammonium chloride storage, specify HDLPE rated to specific gravity 1.9. Verified, compatibility-matched options:
- Snyder Industries 15 Gallon Heavy Duty Black Open Top Cone Bottom Mixing Tank (1.9 SG)
- Snyder Industries 150 Gallon Plastic Chemical Feed Station Tank (1.9 SG)
- Norwesco 500 Gallon HDPE Vertical Liquid Storage Tank (1.9 SG)
- Snyder Industries 1500 Gallon Plastic Vertical Chemical Storage Tank in White (1.9 SG)
- Snyder Industries 5000 Gallon Plastic Vertical Chemical Storage Tank in White (1.9 SG)
Confirm chemical compatibility and a ZIP freight quote with our team at 866-418-1777.
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 Ammonium Chloride (CID 25517, CAS 12125-02-9). 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 Ammonium Chloride. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.