Tetra sodium(1-HydroxyEthylidene) Diphosphonate HEDP·Na4
HEDP·Na₄ Tetrasodium Salt - Advanced scale inhibitor and corrosion control agent for industrial water treatment. Excellent thermal stability up to 250°C with multi-industry applications.
HEDP·Na₄ Tetrasodium Salt - Advanced scale inhibitor and corrosion control agent for industrial water treatment. Excellent thermal stability up to 250°C with multi-industry applications.
Product Name: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Tetrasodium Salt (HEDP·Na₄)
CAS Number: 3794-83-0 (4-Na); 29329-71-3 (x-Na)
Molecular Formula: C₂H₄O₇P₂Na₄
Molecular Weight: 294 g/mol
Synonyms: HEDP tetrasodium salt; HEDP 4Na
HEDP·Na₄ is a highly effective tetrasodium salt formulation of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, renowned for its exceptional scale inhibition and corrosion control properties. This advanced compound demonstrates outstanding performance against calcium carbonate scale formation while providing reliable metal protection across various water treatment applications. With excellent thermal stability maintaining effectiveness at temperatures up to 250°C, HEDP·Na₄ offers versatile solutions for industrial water treatment, metal surface protection, and process applications. The solid powder form provides enhanced handling characteristics with minimal moisture absorption, making it ideal for cold weather conditions and extended storage.
Excellent Scale Inhibition: Superior prevention of calcium carbonate scale formation
Enhanced Thermal Stability: Maintains performance at temperatures up to 250°C
Metal Ion Chelation: Forms stable complexes with iron, copper, zinc and other metal ions
Corrosion Protection: Effective cathodic corrosion inhibition for metal surfaces
Moisture Resistance: Solid form demonstrates minimal hygroscopicity
Cold Weather Performance: Suitable for use in severe cold conditions
Multi-Industry Application: Versatile performance across various industrial sectors
Environmental Compatibility: Effective in diverse water chemistry conditions
| Parameter | Liquid Form | Solid Form |
|---|---|---|
| Appearance | Colorless to light yellow transparent liquid | White powder |
| Active Content (as HEDP), % | 20.3-21.7 | ≥ 56.0 |
| Active Content (as HEDP·Na₄), % | 29.0-31.0 | ≥ 79.0 |
| Orthophosphate (as PO₄³⁻), % | 18.4-20.4 | 52.0-54.0 |
| Iron (Fe²⁺), mg/L ≤ | 20.0 | 35.0 |
| Loss on Drying, % ≤ | -- | 15.0 |
| Density (20°C), g/cm³ | 1.26-1.36 | -- |
| pH (1% aqueous solution) | 10.0-12.0 | 11.0-12.0 |
Specifications may vary between production batches. Please refer to the Certificate of Analysis for precise values.
HEDP·Na₄ is engineered for excellence across multiple industrial applications:
Industrial Water Treatment: Circulating cooling water systems in power, chemical, and metallurgical industries
Boiler Water Systems: Scale and corrosion inhibition in low-pressure boilers
Oil & Gas Industry: Water injection systems and pipeline protection
Textile Processing: Metal and non-metal cleaning applications
Bleaching & Dyeing: Peroxide stabilizer and color fixing agent
Electroplating: Complexing agent in cyanide-free electroplating
Swimming Pool Treatment: Water treatment and sterilization systems
Daily Chemicals: Additive in various consumer products
Municipal Water: Industrial and municipal cleaning water treatment
HEDP·Na₄ is designed for easy integration into various treatment systems. The alkaline formulation provides stable performance across different water conditions. Optimal dosage should be determined based on specific water chemistry, system parameters, and application requirements through performance testing and monitoring.
Liquid Form: 30 kg and 250 kg plastic drums
Solid Form: 25 kg polyethylene-lined woven bags
Custom Packaging: Available upon request
Storage: Store in cool, dry, well-ventilated area
Shelf Life: 12 months from production date
Handling: Protect from moisture and extreme temperatures
HEDP·Na₄ is an alkaline substance. Appropriate personal protective equipment should be worn during handling, including safety glasses and gloves. Avoid contact with skin, eyes, and clothing. In case of contact, immediately flush with plenty of water. For comprehensive safety information, consult the Safety Data Sheet (SDS).
[ Safety Data Sheet (SDS)]
[ Technical Data Sheet (TDS)]
[ Certificate of Analysis (COA)]
Contact our technical team to request complete documentation package
Evaluate HEDP·Na₄ performance in your specific application. Contact us to request a complimentary sample and technical consultation.
Our team of application specialists provides:
Customized formulation recommendations
Application-specific dosage guidance
Compatibility testing services
Technical consultation and troubleshooting
Performance optimization services
Quality Assurance: All products undergo rigorous quality control testing to ensure consistent performance and reliability. Each batch is accompanied by a Certificate of Analysis guaranteeing specification compliance.
Regulatory Compliance: HEDP·Na₄ meets international standards for water treatment chemicals and environmental regulations.
Disclaimer: The information provided is based on current knowledge and believed to be accurate. Users should conduct appropriate testing to determine suitability for specific applications. All products are supplied subject to our standard terms and conditions of sale.
