Water treatment
Corrosion Inhibitors — Phosphonate & Amine Concentrates for Cooling & Boiler Circuits
FOB Black Sea / MENA · CFR/CIF worldwide on request
Indicative price
USD 492–600 / MT
Indicative range, firm quote on request
Key parameters
Full product details
Product overview
Industrial water circuits — open recirculating cooling towers, closed chilled-water loops, process heat exchangers and medium-pressure boiler feedwater trains — corrode aggressively when dissolved oxygen, chloride ingress and calcium hardness are left unchecked. Corrosion inhibitor concentrates form protective films on carbon steel, copper and admiralty-brass surfaces, extending asset life and reducing unplanned shutdowns on petrochemical, power-generation and district-cooling installations across the Middle East and South Asia.
Our export range covers phosphonate–polymer blends for open cooling systems where scale and corrosion control must work together at alkaline pH and high cycles of concentration. ATMP, HEDP and PBTC-based formulations sequester calcium and inhibit carbonate deposition while maintaining zinc or tolyltriazole yellow-metal protection. For closed loops and low-oxygen circuits, nitrite–molybdate and neutral filming-amine grades protect steel and copper without continuous blowdown. Steam–condensate neutralising amines are available for boiler and turbine return lines where carbonic acid corrosion is the primary risk.
Typical buyers include water-treatment service companies building seasonal chemical inventory for HVAC and industrial accounts, district-cooling operators on annual inhibitor supply contracts, independent power producers maintaining cooling-tower chemistry on combined-cycle plants, and chemical distributors serving MENA industrial parks where make-up water hardness exceeds 300 mg/L as CaCO₃. Concentrates are dosed at 10–50 ppm active in the field; dilution and on-site blending instructions are supplied with each COA. HS code 3824.99. MOQ from 24 MT on FOB, CFR or CIF terms.
Full specification
| Active content | 40–60% phosphonate, nitrite or amine blend (grade-dependent) |
| pH (as supplied) | 1.5–12.0 depending on formulation (acidic phosphonate or alkaline closed-loop grade) |
| Density (20 °C) | 1.10–1.35 g/cm³ |
| Viscosity (25 °C) | 5–80 cP |
| Recommended use dose | 10–50 ppm active in circulating water |
| Chloride contribution at use dose | <50 ppm |
| Compatible metallurgy | Carbon steel, copper, admiralty brass, stainless 304/316 (grade-specific) |
| Appearance | Clear to pale amber liquid, no visible sediment |
| Freeze point | −5 to +5 °C (formulation-dependent; winter grades available) |
| HS code | 3824.99 |
Loading ports & logistics
Liquid corrosion inhibitor concentrates are mildly to moderately corrosive depending on pH — compatible handling equipment and secondary containment are mandatory at every transfer point. We coordinate three principal delivery modes depending on parcel size and receiver infrastructure.
200 L HDPE drums on pallets suit FOB parcels from 24 MT upward at specialty-chemical terminals on the Black Sea and in the Eastern Mediterranean. Each drum is sealed with a tamper-evident bung; 80 drums (approximately 18–20 MT net) load into a 20-foot container. Drums must remain upright and protected from direct sunlight during ocean transit to prevent UV degradation of polymer components.
1,000 L PE-lined IBC totes load into 20-foot or 40-foot containers for parcels of 20–40 MT where the receiver has forklift unloading and bulk storage tanks on site. Totes reduce drum-handling labour and suit water-treatment service companies distributing to multiple end-user sites from a central warehouse.
ISO tank containers with PE or 316L stainless linings hold approximately 20–24 MT net per unit and suit multi-modal routes to large district-cooling plants and power stations with dedicated chemical unloading bays. CFR and CIF quotations add ocean freight and marine insurance to the FOB concentrate price. Typical lead time 10–22 days from contract execution to loading window.
Packaging & documentation
Cargo ships in 200 L HDPE drums, 1,000 L PE-lined IBC totes or ISO tank containers — packaging quoted separately from the FOB inhibitor price. Each lot is accompanied by a mill certificate of analysis showing active content, pH, density and appearance, plus a safety data sheet (SDS) per GHS, commercial invoice, packing list, bill of lading and certificate of origin.
Field dilution guidelines and recommended dosage ranges for open cooling, closed-loop and boiler applications are included in the technical data sheet. Third-party inspection (SGS, Bureau Veritas or equivalent) at loading can be arranged on buyer request. For drum cargo, pallet strapping and IMDG-compliant labelling are applied where the formulation falls under Class 8 corrosive thresholds.
FAQ
Which corrosion inhibitor chemistry suits open cooling towers versus closed loops?
Open recirculating cooling towers need phosphonate–polymer blends that control calcium carbonate and zinc-based yellow-metal protection in alkaline, oxygen-rich water. Closed chilled-water and hot-water loops require nitrite, molybdate or filming-amine formulations that protect steel and copper without continuous blowdown. Specify your loop type, metallurgy and make-up water hardness on the enquiry so we match the correct concentrate grade.
How are liquid corrosion inhibitor concentrates shipped for export?
Concentrates move in 200 L HDPE drums palletised into 20-foot containers (approximately 18–20 MT net), 1,000 L IBC totes for larger parcels, or dedicated PE-lined ISO tank containers for multi-hundred-tonne programmes. Compatible hose and pump materials are HDPE, PVC or 316L stainless steel — carbon steel tanks require passivation before first fill.
What drives the indicative corrosion inhibitor price per tonne?
FOB quotations reflect phosphonate active content, amine versus molybdate chemistry, organophosphorus raw-material cost, drum or IBC packaging, and ocean freight to your discharge port. The USD 492–600/MT band covers current formulation and origin differentials; firm pricing is fixed at contract signing against a named loading window.
Related products
- Caustic Soda — alkali for pH adjustment and scale dissolution in water circuits
- Sulfuric Acid — acid for regeneration and pH control in ion-exchange and cooling systems
- Sodium Bicarbonate — alkalinity source for pH buffering in water-treatment programmes