Product Details
- Phosphonates Antiscalant & Corrosion Inhibitor
- Salts of Phosphonates
- Polycarboxylic Antiscalant and Dispersant
- Biocide and Algicide
- Corrosion Inhibitors & Oxygen Scavengers
- Reverse Osmosis Chemicals
- Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
- Cationic Surfactant
- Swimming Pool Chemicals
- Coagulants and Flocculants
HEDP•Na4(Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid)
TL;DR Start with acid-versus-salt and formulation selection and exact salt and neutralization state. Compare the proposed grade specification and supply requirements before requesting a quotation.
HEDP•Na4(Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) — Discuss HEDP•Na4(Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) for acid-versus-salt and formulation selection. Start with exact salt and neutralization state and required active basis and concentration. Check the offered grade specification and include the intended application when requesting a quotation.
For a HEDP•Na4(Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) enquiry, include exact salt and neutralization state and required active basis and concentration, together with the current treatment or formulation. Use the offered grade documents and a representative comparison to decide the next step.
Discuss the grade and application
For HEDP•Na4(Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid), start with acid-versus-salt and formulation selection.
Selection inputs
- Exact salt and neutralization state
- Required active basis and concentration
- Formulation pH and other ingredients
- Storage, handling and destination requirements
Documents and supply
Identify the proposed grade, required quantity, packaging and destination. Ask which specification, TDS, SDS and batch-document options apply to that offer.
Technical documents · Company certificate scopes
Request a quotePhosphonate Salts · Application selection · Related technical decision
Product Description
CAS NO.3794-83-0 (4-Na)
Dequest 2016
29329-71-3 (x-Na)
Dequest 2016DG
Synonyms: Tetrasodium etidronate
Molecular Formula:Â C2H4O7P2Na4
Molecular weight: 294
Structural Formula:
HEDP•Na4 Properties and Use:
HEDP•Na4 is the sodium salt of HEDP, commonly utilized as a scale inhibitor for calcium carbonate in low-pressure boiler water systems, circulating water systems, industrial and municipal cleaning water systems, and swimming pools. The solid form of this organophosphorus acid appears as a white powder, which is both soluble in water and easily deliquescent, facilitating convenient transport. Additionally, it is suitable for use even in winter or freezing climates. This acid scale corrosion inhibitor can form a stable complex with Fe, Cu, and Zn ions while effectively dissolving oxides on metal surfaces. It demonstrates the superior scale and corrosion inhibition effects even under temperatures such as 250℃.
Specification:
| Items | Index | |
|---|---|---|
| Appearance | White powder | Colorless to yellowish transparent liquid |
| Active content (HEDP)% | ≥ 56.0 | 20.3-21.7 |
| Active content (HEDP•Na4)% | ≥ 79.9 | 29.0-31.0 |
| Fe3+ μg/g ≤ | 35 | 20 |
| Moisture，% ≤ | 15 | -- |
| Density (20℃)g/cm3 | -- | 1.26-1.36 |
| PH (1% water solution) | 11.0-12.0(1%aqueous solution) | 10.0-12.0( stoste) |
Application scope and method of use：
HEDP•Na4 has extensive applications in electric power, the chemical industry, metallurgy, fertilizer, circulating cool water systems, and low to medium-pressure boilers and oil field pipelines as a scale and corrosion inhibitor. Additionally, it can be employed as a detergent for both metal and nonmetal within the light woven industry. Furthermore, this organophosphorus acid shows exceptional performance as a peroxide stabilizer and dye-fixing agent within the dyeing industry and an effective chela-acting agent in non-cyanide electroplating processes. It is also commonly used as an additive within daily chemicals.
HEDP•Na4 Package and Storage:
Liquid: plastic drum，30kg or 250kg, Solid: 25kg/bag, customers’ requirement. Storage for ten months in a shady room and dry place
Safety Protection:
HEDP•Na4 Weak acidity, Avoid contact with eye and skin; once contacted, flush with water.
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