Liquid Ammonium Sulfate Preferred Over Pressurized Ammonia

Direct answer: Liquid Ammonium Sulfate (LAS) is a stable, effective, non-pressurized source of ammonia for chloramination - unlike anhydrous or aqueous ammonia, it has indefinite storage life, is odorless, and is non-toxic, avoiding the pressurized-tank and special-handling requirements those alternatives impose. This is a process-chemistry-substitution rule (choose LAS over pressurized ammonia forms where chloramination is the goal), not just an equipment-material rule.

Confidence: confirmed

Applies when	liquid ammonium sulfate, las, chloramination, ammonia dosing
Avoid	anhydrous ammonia, aqueous ammonia (undefined)
Recommend instead	Poly Processing IMFO tank (flat-bottom or sloped-bottom) ()
Rationale	Liquid Ammonium Sulfate (LAS) is a stable, effective, non-pressurized source of ammonia for chloramination - unlike anhydrous or aqueous ammonia, it has indefinite storage life, is odorless, and is non-toxic, avoiding the pressurized-tank and special-handling requirements those alternatives impose. This is a process-chemistry-substitution rule (choose LAS over pressurized ammonia forms where chloramination is the goal), not just an equipment-material rule.
Confidence	confirmed
Source	vendor-sources/poly-processing-chemical-storage.md

This is a general engineering rule derived from real field/case-study evidence, not a substitute for a project-specific specification review — confirm against your exact process conditions before ordering equipment.

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Source: Liberty Chemical Equipment & Supply, Inc. (LibertyCES) — engineering data compiled from real vendor and field-verified sources. For a free spec review, call James Riggins at (559) 395-5500 or email james@libertyces.com / sales@libertyces.com. Website: libertyces.com.