Cooling Tower · Closed-Loop · Boiler Systems
Corrosion Inhibitors
Molybdate / Azole / Phosphonate Formulations · System-Specific
Corrosion costs US industry billions annually in equipment replacement, unplanned downtime, and energy losses. The right corrosion inhibitor program — matched to your system metallurgy, water chemistry, and operating conditions — can extend equipment life by decades. Texas-Chem supplies inhibitor formulations for cooling towers, closed-loop systems, and boiler feedwater.
Chemistry
Molybdate / Azole / Phosphonate
Max Temp
Up to 150 °C
Dose Rate
50–500 mg/L
Pack Sizes
Pails · Drums · Totes
Inhibitor Types by System
Cooling Tower (Open)
Molybdate, azole, phosphonate, zinc
Closed-Loop Heating
Nitrite-molybdate, azole blends
Chilled Water (Closed)
Azole, molybdate, silicate
Boiler Feedwater
Oxygen scavengers, filming amines
Steam Condensate
Neutralizing amines, filming amines
Once-Through
Low-dose phosphonate, silicate
Safety & Regulatory
- NFPA Health
- 1–2 (product-specific)
- NFPA Flammability
- 0 — Non-flammable
- NFPA Reactivity
- 0 — Stable
- DOT Classification
- Not regulated (most formulations)
- Skin/Eye
- Mildly irritating — standard PPE recommended
- Environmental
- Low aquatic toxicity formulations available
- Disposal
- Per local wastewater regulations
- Regulatory
- NSF/ANSI 60 certified options for potable water
Product Lines & Packaging
Product Lines
Pack Sizes
Product Properties
| Chemical Types | Molybdate, azole, phosphonate, amine blends |
| CAS Number | Various (product-specific) |
| Physical Form | Clear to amber liquid |
| Active Content | 20–50% (product-specific) |
| pH (as supplied) | 7.0–10.0 (product-specific) |
| Density | 1.05–1.20 g/cm³ |
| Flash Point | Non-flammable (aqueous) |
| Solubility | Fully miscible with water |
| Typical Dose Rate | 50–500 mg/L (system-specific) |
| Metals Protected | Carbon steel, copper, brass, aluminum |
| Temperature Range | Up to 150 °C (boiler formulations) |
| Shelf Life | 12–24 months (sealed container) |
Applications
Cooling Tower Systems
Corrosion inhibitors protect carbon steel, copper, and brass components in open recirculating cooling systems. Molybdate and azole-based inhibitors form protective films on metal surfaces, reducing corrosion rates to <1 mpy (mils per year) in well-maintained systems.
Closed-Loop Heating & Cooling
Closed-loop inhibitors protect hydronic heating and chilled water systems from corrosion and microbiological fouling. Nitrite-molybdate and azole formulations are standard for closed systems; glycol-compatible formulations available for freeze protection circuits.
Boiler Feedwater Treatment
Oxygen scavengers and filming amines protect boiler feedwater systems and steam condensate lines from oxygen pitting and carbonic acid corrosion. Sulfite, hydrazine-free, and DEHA-based oxygen scavengers available for various pressure ranges.
Once-Through Cooling Systems
Corrosion inhibitors for once-through cooling water systems using river, lake, or well water. Low-dose, environmentally acceptable formulations that meet discharge permit requirements while protecting heat exchanger surfaces.
Process Water Systems
Corrosion protection for industrial process water circuits in chemical, petrochemical, and manufacturing facilities. Formulations selected based on water chemistry, metallurgy, temperature, and regulatory requirements.
Chiller & HVAC Systems
Corrosion and scale inhibitors for chiller barrels, cooling coils, and HVAC water systems. Protects copper, aluminum, and steel components; compatible with glycol antifreeze solutions used in cold-climate applications.
Why Source Corrosion Inhibitors from Texas-Chem?
- 35+ years supplying water treatment chemicals to Texas industry
- Cooling tower, closed-loop, and boiler formulations available
- Technical support for product selection based on your water analysis
- Pails, drums, and totes for any scale of operation
- Competitive pricing backed by top-tier producer relationships
- Same-day quotes — contact us with your system details