Hedp High Stability Scale Corrosion Inhibitor For Multi Industry Water Treatment - China

HEDP (1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid) – High-Stability Scale & Corrosion Inhibitor for Multi-Industry Water Treatment & Beyond

HEDP is a high-performance organophosphonic acid scale and corrosion inhibitor, renowned for its exceptional thermal stability, chelating capacity, and synergistic effects with other agents.

It is a trusted solution for global B2B partners (including power, chemical, textile, and electronics enterprises) across diverse industrial scenarios.

Basic Product Information

• Chemical Name: 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP)

• Aliases: Hydroxyethylidene Diphosphonic Acid, HEDPA, (1-Hydroxyethylidene) Diphosphonic Acid

• CAS No: 2809-21-4

• Molecular Formula: C₂H₈O₇P₂

• Relative Molecular Mass: 206.02

Performance & Applications

Core Performance

As a premium organophosphonic acid agent, HEDP delivers outstanding 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 resistance compared to other organophosphonates.

• Chelates with Ca²⁺ (and other metal ions) 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 Advantages of Solid HEDP

The high-purity solid form is suitable for cold winter regions; it is especially ideal for electronic industry cleaners and daily chemical product additives.

Industry Applications

HEDP is widely used across sectors:

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

2 - Light Textile Industry: 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.

3 - Pharmaceutical Industry: Used as a carrier for radioactive elements.

Usage Guidelines

• Scale inhibitor: Recommended dosage: 1–10 mg/L

• Corrosion inhibitor: Recommended dosage: 10–50 mg/L

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

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

Dosage in other industries should be determined via tests.

Packaging & Storage

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

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

• Storage: Keep in a cool, ventilated indoor area; protect from moisture.

Shelf life: 12 months.

Safety Precautions

HEDP is acidic.

Use proper labor protection during operation: Avoid contact with skin/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.
  
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