PBTCA (2-Phosphonobutane-1,2,4-tricarboxylic Acid) is a high-performance organophosphonic acid water treatment agent with CAS No. 37971-36-1, molecular formula C₇H₁₁O₉P, and molecular weight 270.13. The product appears as a transparent colorless to pale yellow liquid with uniform and pure texture, which is completely miscible with water in any ratio. The pH value of its 1% aqueous solution is 1, belonging to a moderate-strength acid substance. Its unique molecular structure integrates dual active groups of phosphonic acid and carboxyl, endowing the product with excellent corrosion inhibition, scale inhibition, and chelating properties. Additionally, it exhibits outstanding thermal stability and chemical compatibility, maintaining stable efficacy even under complex working conditions. It is one of the core agents in the industrial water treatment field.
Possesses extremely strong chelating ability for scale-prone metal ions such as Ca²⁺, Zn²⁺, Cu²⁺, and Mg²⁺ in water, effectively preventing scale formation and deposition, and solving equipment scaling problems at the source.
Can stably function within a pH range of 7.0~9.5, resistant to harsh environments of high temperature, high hardness, and high alkalinity. No hydrolysis occurs in water at 120℃, suitable for various severe industrial scenarios.
Can increase the concentration multiple of circulating cooling water to over 7, greatly reducing water consumption and sewage discharge, while decreasing equipment cleaning frequency and extending equipment service life.
Features good compatibility with conventional water treatment agents (such as scale dispersants and bactericides) and exhibits a synergistic effect. Its tolerance to chlorine, chlorine-containing products, and ferric ions is superior to that of similar phosphonate products.
Density of 1.25 (50% aqueous solution, 20℃), boiling point of 545.2℃, flash point of 283.5℃, freezing point of -15℃. It can be used normally after thawing if solidified at low temperature, with a storage period of more than 2 years.
Combines dual functions of corrosion inhibition and scale inhibition, capable of forming a dense protective film on metal surfaces, effectively inhibiting metal corrosion and reducing the risk of equipment perforation and leakage.
The 50% aqueous solution has a LD₅₀ (oral, rat) of >6500mg/kg, with low acute toxicity, meeting the requirements of industrial environmental protection. Waste disposal must comply with local environmental regulations.
The product is in liquid form, requiring no complex dissolution steps and can be directly dosed. It is compatible with equipment and pipelines made of stainless steel, glass, polyethylene, and other materials.
Widely used in corrosion and scale inhibition treatment of circulating cooling water in power, chemical, metallurgical, air conditioning and other industries, suitable for key equipment such as cooling towers, condensers, and heat exchangers.
Used for scale prevention in water injection during oilfield exploitation, effectively solving scaling problems in formations, oil wells, and transmission pipelines, and ensuring water injection efficiency and oil well productivity.
Can be used for water quality stabilization treatment in industrial boiler feed water, chemical process water and other fields, especially suitable for long-term operation systems under high hardness and high alkalinity water quality conditions.
- Water Treatment Supervisor of a Chemical Enterprise: "The circulating water in our workshop has high hardness and alkalinity. The previous scale inhibitor had unstable effects. After switching to PBTCA, the scaling of equipment has been significantly reduced. The concentration multiple has increased from 4 to 7, achieving remarkable water saving effect. Moreover, it has excellent compatibility with existing bactericides without any adverse reactions."
- Oilfield Technical Engineer: "We have been using this product in the oilfield water injection system for nearly a year. The scaling problems of oil wells and pipelines have been effectively controlled, and the maintenance frequency has been reduced by half. The dosage is also relatively economical, and the comprehensive cost is much lower than that of the previous product, with high cost-performance ratio."
- Equipment Operator and Maintainer of a Power Company: "The condenser used to be affected by scaling frequently, which reduced heat exchange efficiency. After using PBTCA, the heat exchange effect remains stable, the metal corrosion rate has decreased significantly, the equipment operation cycle has been extended, and the time and cost of shutdown maintenance have been greatly reduced."
PBTCA (2-Phosphonobutane-1,2,4-tricarboxylic Acid) is a high-performance organophosphonic acid water treatment agent with CAS No. 37971-36-1, molecular formula C₇H₁₁O₉P, and molecular weight 270.13. The product appears as a transparent colorless to pale yellow liquid with uniform and pure texture, which is completely miscible with water in any ratio. The pH value of its 1% aqueous solution is 1, belonging to a moderate-strength acid substance. Its unique molecular structure integrates dual active groups of phosphonic acid and carboxyl, endowing the product with excellent corrosion inhibition, scale inhibition, and chelating properties. Additionally, it exhibits outstanding thermal stability and chemical compatibility, maintaining stable efficacy even under complex working conditions. It is one of the core agents in the industrial water treatment field.
Possesses extremely strong chelating ability for scale-prone metal ions such as Ca²⁺, Zn²⁺, Cu²⁺, and Mg²⁺ in water, effectively preventing scale formation and deposition, and solving equipment scaling problems at the source.
Can stably function within a pH range of 7.0~9.5, resistant to harsh environments of high temperature, high hardness, and high alkalinity. No hydrolysis occurs in water at 120℃, suitable for various severe industrial scenarios.
Can increase the concentration multiple of circulating cooling water to over 7, greatly reducing water consumption and sewage discharge, while decreasing equipment cleaning frequency and extending equipment service life.
Features good compatibility with conventional water treatment agents (such as scale dispersants and bactericides) and exhibits a synergistic effect. Its tolerance to chlorine, chlorine-containing products, and ferric ions is superior to that of similar phosphonate products.
Density of 1.25 (50% aqueous solution, 20℃), boiling point of 545.2℃, flash point of 283.5℃, freezing point of -15℃. It can be used normally after thawing if solidified at low temperature, with a storage period of more than 2 years.
Combines dual functions of corrosion inhibition and scale inhibition, capable of forming a dense protective film on metal surfaces, effectively inhibiting metal corrosion and reducing the risk of equipment perforation and leakage.
The 50% aqueous solution has a LD₅₀ (oral, rat) of >6500mg/kg, with low acute toxicity, meeting the requirements of industrial environmental protection. Waste disposal must comply with local environmental regulations.
The product is in liquid form, requiring no complex dissolution steps and can be directly dosed. It is compatible with equipment and pipelines made of stainless steel, glass, polyethylene, and other materials.
Widely used in corrosion and scale inhibition treatment of circulating cooling water in power, chemical, metallurgical, air conditioning and other industries, suitable for key equipment such as cooling towers, condensers, and heat exchangers.
Used for scale prevention in water injection during oilfield exploitation, effectively solving scaling problems in formations, oil wells, and transmission pipelines, and ensuring water injection efficiency and oil well productivity.
Can be used for water quality stabilization treatment in industrial boiler feed water, chemical process water and other fields, especially suitable for long-term operation systems under high hardness and high alkalinity water quality conditions.
- Water Treatment Supervisor of a Chemical Enterprise: "The circulating water in our workshop has high hardness and alkalinity. The previous scale inhibitor had unstable effects. After switching to PBTCA, the scaling of equipment has been significantly reduced. The concentration multiple has increased from 4 to 7, achieving remarkable water saving effect. Moreover, it has excellent compatibility with existing bactericides without any adverse reactions."
- Oilfield Technical Engineer: "We have been using this product in the oilfield water injection system for nearly a year. The scaling problems of oil wells and pipelines have been effectively controlled, and the maintenance frequency has been reduced by half. The dosage is also relatively economical, and the comprehensive cost is much lower than that of the previous product, with high cost-performance ratio."
- Equipment Operator and Maintainer of a Power Company: "The condenser used to be affected by scaling frequently, which reduced heat exchange efficiency. After using PBTCA, the heat exchange effect remains stable, the metal corrosion rate has decreased significantly, the equipment operation cycle has been extended, and the time and cost of shutdown maintenance have been greatly reduced."
