Availability: | |
---|---|
Quantity: | |
HEDP 2809-21-4
SINOBIO
3808940090
Sinobio’s 98% purity HEDP powder (CAS 2809-21-4), chemically known as 1-Hydroxyethylidene-1,1-diphosphonic acid, is a high-performance organophosphonic acid corrosion and scale inhibitor. With the molecular formula C₂H₈O₇P₂ and EINECS number 220-552-8, this white crystalline powder is engineered for superior stability and efficacy across diverse industrial applications.
Exceptional Chelation Capacity: Effectively chelates with metal ions (Fe, Cu, Zn, etc.) to form stable complexes, dissolving oxide layers on metal surfaces and preventing scale formation.
High Temperature Resistance: Maintains optimal scale and corrosion inhibition performance even at temperatures up to 250°C, making it suitable for high-heat systems.
Chemical Stability: Resists hydrolysis under high pH conditions and remains stable under normal light and heat. It exhibits better tolerance to acids, alkalis, and chlorine oxidation compared to other organophosphonic acids/salts.
Synergistic Effects: Works efficiently with other water treatment chemicals (e.g., polycarboxylic acids) to enhance overall performance.
Versatile Form: The solid crystalline powder is ideal for winter or freezing regions. Its high purity enables use in electronic cleaning and daily chemical additives.
Items | Liquid Form Index | Powder Form Index |
Appearance | Clear, colorless to pale yellow aqueous solution | White crystal powder |
Active content (HEDP) | 58.0-62.0% | ≥90.0% |
Active content (HEDP·H₂O) | -- | ≥98.0% |
Phosphorous acid (as PO₃³⁻) | ≤2.0% | ≤0.8% |
Phosphoric acid (as PO₄³⁻) | ≤0.8% | ≤0.5% |
Chloride (as Cl⁻) | ≤0.02% | ≤0.01% |
pH (1% water solution) | ≤2.0 | ≤2.0 |
Density (20℃) g/cm³ | ≥1.40 | -- |
Fe (mg/L) | ≤20.0 | ≤10.0 |
Ca sequestration (mg CaCO₃/g) | ≥500.0 | -- |
HEDP powder is widely used as a scale and corrosion inhibitor in:
Oil fields and low-pressure boilers, preventing scale buildup in pipelines and equipment.
Light textile industry: Acts as a metal and non-metal cleaner.
Dyeing industry: Functions as a peroxide stabilizer and dye-fixing agent, improving color fastness and process stability.
Electroplating: Serves as a chelating agent in cyanide-free electroplating processes, ensuring smooth and uniform plating.
Electronics: High-purity grade is used as a cleaning agent for electronic components, removing oxides and contaminants without damaging sensitive parts.
Medical Field: Acts as a carrier for radioactive elements, supporting tumor detection and diagnostic procedures.
Scale inhibitor: 1-10 mg/L
Corrosion inhibitor: 10-50 mg/L
Detergent: 1000-2000 mg/L
For optimal results, blend with polycarboxylic acid-based additives.
Packaged in 25kg bags with no minimum order quantity, Sinobio’s HEDP powder (CAS 2809-21-4) is a reliable choice for industries seeking high-performance water treatment and metal protection solutions. Contact us for bulk orders or technical support.
Sinobio’s 98% purity HEDP powder (CAS 2809-21-4), chemically known as 1-Hydroxyethylidene-1,1-diphosphonic acid, is a high-performance organophosphonic acid corrosion and scale inhibitor. With the molecular formula C₂H₈O₇P₂ and EINECS number 220-552-8, this white crystalline powder is engineered for superior stability and efficacy across diverse industrial applications.
Exceptional Chelation Capacity: Effectively chelates with metal ions (Fe, Cu, Zn, etc.) to form stable complexes, dissolving oxide layers on metal surfaces and preventing scale formation.
High Temperature Resistance: Maintains optimal scale and corrosion inhibition performance even at temperatures up to 250°C, making it suitable for high-heat systems.
Chemical Stability: Resists hydrolysis under high pH conditions and remains stable under normal light and heat. It exhibits better tolerance to acids, alkalis, and chlorine oxidation compared to other organophosphonic acids/salts.
Synergistic Effects: Works efficiently with other water treatment chemicals (e.g., polycarboxylic acids) to enhance overall performance.
Versatile Form: The solid crystalline powder is ideal for winter or freezing regions. Its high purity enables use in electronic cleaning and daily chemical additives.
Items | Liquid Form Index | Powder Form Index |
Appearance | Clear, colorless to pale yellow aqueous solution | White crystal powder |
Active content (HEDP) | 58.0-62.0% | ≥90.0% |
Active content (HEDP·H₂O) | -- | ≥98.0% |
Phosphorous acid (as PO₃³⁻) | ≤2.0% | ≤0.8% |
Phosphoric acid (as PO₄³⁻) | ≤0.8% | ≤0.5% |
Chloride (as Cl⁻) | ≤0.02% | ≤0.01% |
pH (1% water solution) | ≤2.0 | ≤2.0 |
Density (20℃) g/cm³ | ≥1.40 | -- |
Fe (mg/L) | ≤20.0 | ≤10.0 |
Ca sequestration (mg CaCO₃/g) | ≥500.0 | -- |
HEDP powder is widely used as a scale and corrosion inhibitor in:
Oil fields and low-pressure boilers, preventing scale buildup in pipelines and equipment.
Light textile industry: Acts as a metal and non-metal cleaner.
Dyeing industry: Functions as a peroxide stabilizer and dye-fixing agent, improving color fastness and process stability.
Electroplating: Serves as a chelating agent in cyanide-free electroplating processes, ensuring smooth and uniform plating.
Electronics: High-purity grade is used as a cleaning agent for electronic components, removing oxides and contaminants without damaging sensitive parts.
Medical Field: Acts as a carrier for radioactive elements, supporting tumor detection and diagnostic procedures.
Scale inhibitor: 1-10 mg/L
Corrosion inhibitor: 10-50 mg/L
Detergent: 1000-2000 mg/L
For optimal results, blend with polycarboxylic acid-based additives.
Packaged in 25kg bags with no minimum order quantity, Sinobio’s HEDP powder (CAS 2809-21-4) is a reliable choice for industries seeking high-performance water treatment and metal protection solutions. Contact us for bulk orders or technical support.