CI SP50 – Liquid Sodium Sulfite Boiler Treatment for Oxygen Control

Steam Boilers and High-Condensate Systems | Eliminates Dissolved Oxygen Before It Pits Tubes and Drums | Liquid Sulfite That Feeds Clean Without the Plugging Problems of Powder

CI SP50 is the oxygen scavenger for steam boiler systems — it chemically reacts with dissolved oxygen in the feedwater and removes it before it reaches tube walls, drums, and piping where it causes pitting corrosion that leads to tube failures, unplanned shutdowns, and expensive pressure-part replacements. Dissolved oxygen is one of the most destructive forces inside a steam boiler, and every other treatment in the program is compromised if oxygen isn’t controlled first. Liquid format eliminates the operational headaches that come with powdered sulfite — no undissolved solids plugging feed lines, no inconsistent dosing from clumped material, no residue accumulating in chemical feed equipment. It mixes uniformly, feeds reliably, and keeps the dosing system running without the maintenance interruptions that powder-based scavengers create. Particularly effective in systems with high condensate return, where oxygen ingress through the condensate system puts internal metal surfaces at ongoing risk and consistent scavenging is the difference between stable operation and accelerating corrosion. By keeping oxygen out of the boiler water, CI SP50 also reduces the corrosion products that contribute to scale formation and heat transfer resistance — protecting fuel economy alongside metal integrity. Compatible with other CI boiler treatment chemicals and integrates into automated or manual feed programs. None of the other treatments in the water treatment line replace what this product does — No. 20, No. 25, No. 34, and No. 38 protect metal surfaces from corrosion through passivation films, but CI SP50 removes the oxygen that attacks those surfaces in the first place. Different job, different mechanism, and in steam systems, it’s the one that runs every day.

$329.00 / 20 L pail
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Technical Data

Technical Data

Technical Properties

CI SP50 Liquid Sodium Sulfite

Liquid sodium sulfite oxygen scavenger formulated for steam boiler systems where dissolved oxygen must be removed before it pits tubes, drums, and piping. Built for daily feed into steam programs that need clean mixing, reliable dosing, and corrosion control without the feed-line plugging and residue problems that come with powder-based sulfite products.

Product Type
Liquid Sodium Sulfite Oxygen Scavenger

Technology Base
Sulfite Oxygen-Removal Chemistry in Liquid Feed Format

Primary Function
Remove Dissolved Oxygen Before It Causes Pitting Corrosion

Application Role
Daily Oxygen Control in Steam Boiler Water Treatment Programs

Performance Focus
Oxygen Scavenging, Pitting Prevention, and Reliable Liquid Feed Performance

Operational Mechanism
Chemically Reacts with Dissolved Oxygen in Feedwater Before Oxygen Can Attack Internal Boiler Surfaces

Process Target
Steam Boiler Feedwater, Tubes, Drums, Piping, and High-Condensate Return Systems

Operational Benefit
Protects Metal Integrity While Keeping Feed Systems Clean and Dosing Consistent

Use Environment
Steam Boilers, Industrial Boiler Rooms, Institutional Plants, and High-Condensate Return Systems

Program Fit
Core Oxygen-Control Step in Steam Boiler Treatment Programs

Maintenance Value
Helps Prevent Tube Failures, Pressure-Part Damage, Fouling, and Heat-Transfer Loss Linked to Oxygen Attack

Feed Compatibility
Integrates into Automated or Manual Feed Systems and Mixes Uniformly Without Powder Handling Issues

Operational Notes
• Dissolved oxygen is one of the most destructive forces inside a steam boiler — if it is not controlled first, the rest of the treatment program is working behind an active attack mechanism
• Liquid format is the operational advantage: no undissolved solids, no clumping, no feed-line plugging, and no powder residue building up in chemical feed equipment
• Particularly strong fit in systems with high condensate return, where oxygen ingress through the return side keeps internal metal surfaces under ongoing corrosion pressure
• By controlling oxygen early, the product also helps reduce corrosion byproducts that contribute to fouling, scale formation, and heat-transfer resistance
• Distinct from No. 20, No. 25, No. 34, and No. 38: those products protect metal surfaces through passivation films, while CI SP50 removes the oxygen that attacks those surfaces in the first place
• In steam systems, this is not optional side chemistry — it is one of the treatments that has to run every day if oxygen control matters

Practical Fit
CI SP50 is the oxygen scavenger for steam boilers where reliability depends on stopping pitting before it starts. It belongs in steam programs that need clean liquid feed, stable dosing, and direct oxygen removal instead of assuming a passivating boiler compound can do a different job by itself.

This block is built directly from the positioning you provided: a liquid sodium sulfite oxygen scavenger for steam boiler systems, designed to react with dissolved oxygen in feedwater before it causes pitting corrosion in tubes, drums, and piping. It also preserves the line architecture you established by distinguishing CI SP50 from the passivating treatments in the rest of the water-treatment line: No. 20, No. 25, No. 34, and No. 38 protect metal surfaces through inhibitor films, while CI SP50 removes the oxygen that attacks those surfaces in the first place.