Hedp•na₂ High Stability Scale And Corrosion Inhibitor For Multi Industry Applications - China

HEDP•Na₂ (Disodium Salt of 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid) – High-Stability Scale & Corrosion Inhibitor for Multi-Industry Applications

HEDP•Na₂ is a high-performance organophosphonic salt-based scale and corrosion inhibitor.

Basic Product Information

• Chemical Name: Disodium Salt of 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP•Na₂)

• CAS No: 7414-83-7

• Active Content: 20.0% (liquid); 89.8-95.8% (as HEDP•Na₂, solid)

Performance & Applications

Core Performance

As a premium organophosphonic agent, HEDP•Na₂ delivers standout capabilities:

• Forms stable complexes with metal ions (Fe, Cu, Zn, etc.

) and dissolves metal surface oxides.

• Maintains effective scale/corrosion inhibition at up to 250℃; stable at high pH, non-hydrolysable, and resistant to decomposition under normal light/heat conditions.

• Superior acid/alkali resistance and chlorine oxidation performance compared to other organophosphonates.

• Chelates with Ca²+ to form six-membered ring complexes, enabling excellent scale inhibition and obvious threshold effect; exhibits ideal synergistic effects when compounded with other water treatment agents.

Key Applications

1 - Industrial Water Treatment: Applied in circulating cooling water systems (power, chemical, metallurgy, fertilizer industries), medium/low pressure boilers, and oilfield water injection/transmission pipelines for scale and corrosion inhibition.

2 - Light Textile & Electroplating: Serves as a metal/non-metal cleaner; acts as a peroxide stabilizer and color fixative in dyeing; functions as a complexing agent in cyanide-free electroplating.

Technical Specifications

Item

Liquid Specification

Solid Specification Appearance

Colorless to pale yellow transparent liquid

White solid powder Active Component (as HEDP) ≥

16.5%

74.0-79.0% Active Component (as HEDP•Na₂) ≥

20.0%

89.8-95.8% Density (20℃)

1.12-1.22 g/cm³

- Fe (as Fe²+) Content ≤

-

35.0 mg/L Loss on Drying

-

3.0-6.0% pH (1% aqueous solution)

4.0-6.0

4.0-6.0 Usage Guidelines

• Scale inhibitor: Recommended dosage: 2–20 mg/L

• Corrosion inhibitor: Recommended dosage: 20–100 mg/L

• Cleaner: Recommended dosage: 1000–2000 mg/L

• Typically compounded with polycarboxylic acid scale dispersants for optimal effects.

Packaging & Storage

• Liquid HEDP•Na₂: Packed in plastic drums (30kg/drum or 250kg/drum).

• Solid HEDP•Na₂: Packed in plastic woven bags lined with polyethylene (25kg/net bag; customizable per user needs).

• Storage: Keep in a cool indoor area.

Shelf life: 12 months (solid); 10 months (liquid).

Safety Precautions

HEDP•Na₂ is weakly acidic.

Use labor protection measures during operation: Avoid contact with skin or eyes.

If contact occurs, rinse immediately with plenty of clean water.

Company Contact:

• Posted By: LAIZHOU JINXING CHEMICAL CO., LTD.

• Phone: +86 18953884105

• Address: No. 185, Haimiaohou Industrial District, Laizhou Yantai,Shandong China, Laizhou , Shandong , China

• Email:

• Website: https://www.lzjxchem.com/

• Business Description: Currently,we focus on the production of 99.5% Sulfamic Acid(CAS: 5329-14-6),we are now one of the largest manufacturers of Sulfamic Acid in north China with good quality and large volume.
  
  Our product capacity is more than 1600 tons/month ;At present, we have approved the new factory.
  
  It is estimated that the new factory will be put into operation in 2-3 years, and the production capacity will be doubled compared with the current one.
  
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