AG‑990 Special High‑Temperature Corrosion & Scale Inhibitor for Boilers (Acidic Liquid)

AG‑990 boiler‑special corrosion and scale inhibitor is compounded from organophosphonic acid, polycarboxylic acid and other high‑polymers. It possesses excellent corrosion‑inhibition and scale‑inhibition performance with outstanding thermal stability.

LH-103 Heavy Degreaser (5kg)
  • AG‑990 Special High‑Temperature Corrosion & Scale Inhibitor for Boilers (Acidic Liquid)
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  • Product details
  • 1. Performance and Application

    AG‑990 boiler‑special corrosion and scale inhibitor is compounded from organophosphonic acid, polycarboxylic acid and other high‑polymers. It possesses excellent corrosion‑inhibition and scale‑inhibition performance with outstanding thermal stability.

    It is applicable for internal water treatment of high‑ and low‑pressure boilers including heating boilers, steam boilers and locomotive boilers. It can also be used for corrosion inhibition and scale prevention in seawater desalination, distillation and automobile water‑tank systems.

    2. Technical Specifications

    ItemIndex
    AppearanceAmber liquid
    pH (1 % aqueous solution)2.0±1.0
    Specific Gravity (20℃ g/cm³)1.10±0.05
    Packaging25 kg/drum

    3. Usage Method

    ‑ Dose 200 g agent per ton of boiler make‑up water. Carry out blow‑down during operation: blow‑down every hour for 5‑10 seconds. Increase dosage and frequency of blow‑down for boilers with pre‑existing scale. Shut down boiler after 10‑20 days operation, manually clean stripped scale deposits to avoid pipeline blockage, then resume normal operation. ‑ Where conditions permit, control boiler water concentration multiple around 10 times. Adjust other parameters in accordance with labor‑department specifications (e.g. boiler‑water pH 10‑12). ‑ Use plastic dosing tanks. Cement‑made tanks shall be anti‑corrosion treated, otherwise they may be corroded and lead to increased water hardness. ‑ Total hardness of boiler make‑up water shall be controlled within 200 mg/L. Reduce hardness by lime method or other means if hardness is excessive, otherwise scale‑inhibition performance will be impaired.

    4. Packaging and Storage

    Standard package: 25 kg plastic drums; customized packages available upon user requirements. Stable physicochemical properties. Store in cool place. Shelf life: 12 months.

    5. Safety & Protection

    AG‑990 boiler‑special high‑temperature corrosion & scale inhibitor (acidic liquid) is weakly acidic. Take protective measures during handling. Avoid skin and eye contact. In case of contact, rinse thoroughly with plenty of clean water.

    1. Performance and Application

    AG‑990 boiler‑special corrosion and scale inhibitor is compounded from organophosphonic acid, polycarboxylic acid and other high‑polymers. It possesses excellent corrosion‑inhibition and scale‑inhibition performance with outstanding thermal stability.

    It is applicable for internal water treatment of high‑ and low‑pressure boilers including heating boilers, steam boilers and locomotive boilers. It can also be used for corrosion inhibition and scale prevention in seawater desalination, distillation and automobile water‑tank systems.

    2. Technical Specifications

    ItemIndex
    AppearanceAmber liquid
    pH (1 % aqueous solution)2.0±1.0
    Specific Gravity (20℃ g/cm³)1.10±0.05
    Packaging25 kg/drum

    3. Usage Method

    ‑ Dose 200 g agent per ton of boiler make‑up water. Carry out blow‑down during operation: blow‑down every hour for 5‑10 seconds. Increase dosage and frequency of blow‑down for boilers with pre‑existing scale. Shut down boiler after 10‑20 days operation, manually clean stripped scale deposits to avoid pipeline blockage, then resume normal operation. ‑ Where conditions permit, control boiler water concentration multiple around 10 times. Adjust other parameters in accordance with labor‑department specifications (e.g. boiler‑water pH 10‑12). ‑ Use plastic dosing tanks. Cement‑made tanks shall be anti‑corrosion treated, otherwise they may be corroded and lead to increased water hardness. ‑ Total hardness of boiler make‑up water shall be controlled within 200 mg/L. Reduce hardness by lime method or other means if hardness is excessive, otherwise scale‑inhibition performance will be impaired.

    4. Packaging and Storage

    Standard package: 25 kg plastic drums; customized packages available upon user requirements. Stable physicochemical properties. Store in cool place. Shelf life: 12 months.

    5. Safety & Protection

    AG‑990 boiler‑special high‑temperature corrosion & scale inhibitor (acidic liquid) is weakly acidic. Take protective measures during handling. Avoid skin and eye contact. In case of contact, rinse thoroughly with plenty of clean water.