Author : Vinipul Inorganics Pvt. Ltd. | Published on : 08 Nov 2021
HEDP 4Na
High-purity HEDP 4Na (Tetrasodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) | CAS No. 3794-83-0 – speciality phosphonate-based scale and corrosion inhibitor manufactured by Vinipul Inorganics Pvt. Ltd., one of India’s leading producers, suppliers, and exporters of industrial water-treatment chemicals.
Our HEDP 4Na offers exceptional thermal stability, metal ion chelation, and compatibility in alkaline environments, ideal for use in cooling water systems, boilers, detergents, and cleaning formulations.
| Chemical Name | HEDP 4Na (Tetrasodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid)  |
| CAS No | 3794-83-0 |
| EC Number | 223-267-7 |
| Molecular Formula | C₂H₄Na₄O₈P₂ |
| Molecular Weight | 294.0 g/mol |
| Appearance | Colorless to pale yellow transparent liquid |
| Active Content (as HEDP 4Na) | 29% – 31% |
| pH (1% Solution) | 10.0 – 12.0 |
| Specific Gravity (25°C) | 1.35 – 1.45 g/cm³ |
| Solubility | Completely soluble in water |
| Chelation Value (as CaCO₃) | ≥ 450 mg/g |
| Packaging Details | 30 kg / 50 kg / 250 kg HDPE drums / IBC tanks / as per client’s requirement |
HEDP 4Na manufacturer, supplier and exporter in India
Table of Contents
HEDP 4Na Description
HEDP 4Na (Tetrasodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) is the fully neutralized sodium salt of HEDP Acid, designed for applications where alkaline compatibility and high-pH stability are essential.
It functions as a scale inhibitor, chelating agent, and corrosion control additive in water systems and detergent formulations.
At Vinipul Inorganics Pvt. Ltd., HEDP 4Na is manufactured by neutralizing high-purity HEDP Acid with sodium hydroxide under controlled pH and temperature conditions. The resulting solution exhibits excellent thermal stability and strong complexation ability with calcium, magnesium, and iron ions, preventing scale formation even under high-alkalinity conditions.
Scientific Note: HEDP 4Na is stable at up to 250 °C, resistant to hydrolysis, and maintains strong chelating properties across pH > 9 — making it highly effective in alkaline water treatment and cleaning applications.
Vinipul Inorganics Pvt. Ltd. is a reputed manufacturer, supplier, and exporter of HEDP 4Na in India, delivering industrial, technical, and water-treatment grades to clients across Asia, the Middle East, and Africa.
We ensure consistent purity, high active content, and export-grade packaging for bulk and OEM supply.
HEDP 4Na Latest Price
HEDP 4Na Latest Price : __________ INR *
Prices shown above are provisional and may vary by purity, active percentage, and order quantity. For current quotations please contact +91-9022030847 or submit an enquiry through the form. Vinipul Inorganics Pvt. Ltd. offers competitive bulk and export pricing.
Specifications / Technical Parameters of HEDP 4Na
For technical parameters / COA, please contact us.
We offer the following grades:
- HEDP 4Na (30%) Standard Grade
- HEDP 4Na (40%) Concentrated Grade (on request)
- Water Treatment Grade
- Detergent & Industrial Cleaning Grade
Custom formulations can be supplied for cooling tower systems, RO membrane cleaning, oilfield brine control, and industrial alkaline cleaners.
For chemical compatibility or blending guidance, contact Vinipul Inorganics Pvt. Ltd. at +91-9022030847 or fill the Enquiry Now form.
Industrial Applications / Uses of HEDP 4Na
- Used as scale and corrosion inhibitor in industrial water treatment systems, cooling towers, and boilers.
- Used as chelating and dispersing agent in detergent and cleaning formulations.
- Used in RO membrane antiscalant formulations for high-pH environments.
- Used as a peroxide stabilizer in textile bleaching and paper processing.
- Used in oilfield water injection and drilling mud additives.
- Used in metal treatment and surface cleaning operations.
- Used in industrial alkaline cleaners, degreasers, and bottle-washing compounds.
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