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CI No. 98 Cooling Water Compound
Scale and corrosion treatment for open recirculating cooling towers.
Concentrated cooling water treatment for open recirculating cooling towers and condenser feed water. Anti-scaling agents combined with cathodic and anodic inhibitors protect steel and soft metals, while alkalinity control supports higher cycles of concentration. Feed rate scales with makeup water volume and cycle rate, making it a practical treatment compound for standard monitored tower programs. Control is maintained against pH 7.5–8.5 and phosphonate residual at 25–30 ppm as AMP (NTP), or orthophosphate at 15–20 ppm as PO₄. Compared with No. 87, No. 98 sits in the same scale-and-corrosion lane but presents as the leaner cooling tower program — the core treatment chemistry and residual targets without the fuller monitoring window built around tighter conductivity and M-alkalinity limits.
$299.00 / 20 L pail
Technical Data
Technical Data
Technical Properties
CI No. 98 Cooling Water Compound
Concentrated cooling water treatment for open recirculating cooling towers and condenser feed water. Anti-scaling agents combined with cathodic and anodic inhibitors protect steel and soft metals, while alkalinity control supports higher cycles of concentration. Positioned as the leaner monitored tower-treatment program: core scale and corrosion control with clear pH and residual targets, without the fuller conductivity and M-alkalinity operating window specified for No. 87.
Product Type
Scale and Corrosion Treatment for Open Recirculating Cooling Towers
System Fit
Cooling Towers and Condenser Feed Water in Open Recirculating Systems
Primary Function
Prevent Scale Formation and Corrosion in Standard Tower Water Programs
Protection Mechanism
Anti-Scaling Agents with Cathodic and Anodic Inhibitors
Metallurgy Coverage
Protects Both Steel and Soft Metals
Operational Role
Core Treatment Compound for Monitored Open-Tower Scale and Corrosion Control
Program Focus
Higher Cycles of Concentration Through Alkalinity Control
Monitoring Profile
Built Around Core pH and Phosphonate or Phosphate Residual Control
Control Window
pH 7.5–8.5 with Residual Control by Organophosphonate or Orthophosphate Testing
Residual Target
Organophosphonate 25–30 ppm as AMP (NTP) or Orthophosphate 15–20 ppm as PO₄
Feed Logic
Feed Rate Scales with Makeup Water Volume and Cycles of Concentration
Feed Method
Manual Addition or Automatic Continuous Feeding Equipment
Program Position
Leaner Tower Treatment Profile Than No. 87, With Core Residual Targets but Less Fully Specified Operating Limits
Operational Notes
• This is the scale-and-corrosion treatment compound for open recirculating towers, not the microbiological control product
• Strong fit where the operator wants core chemistry control around pH and residual testing without building the whole writeup around tighter conductivity and M-alkalinity targets
• Initial treatment is 1 part product to 2000 parts system water, with maintenance feed scaled to makeup water volume and cycle rate
• Daily analysis should include alkalinity, pH, and organophosphonates or phosphates, with periodic checks on feed water alkalinity
• Compared with No. 87, No. 98 sits in the same operating lane but presents as the less fully specified tower-treatment program
• Best used where the buyer needs straightforward open-tower scale and corrosion chemistry with real residual targets, but not the fuller “tight envelope” positioning of No. 87
Practical Fit
CI No. 98 is the leaner open-tower treatment compound in the line: scale control, corrosion protection, and cycle support built around the core monitoring targets tower operators actually run every day. It belongs in open recirculating cooling towers where the program is real and monitored, but the writeup does not need the fuller operating envelope that distinguishes No. 87.
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