Hedp•na₄ High Efficiency Calcium Carbonate Scale Inhibitor - China

HEDP•Na₄ (Tetra Sodium Salt of 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid) – High-Efficiency Calcium Carbonate Scale Inhibitor for Low-Pressure Boiler & Multi-Industry Water Systems

HEDP•Na₄ is the tetra sodium salt derivative of HEDP, a high-performance organophosphonate agent.

Basic Product Information

• Chemical Name: Tetra Sodium Salt of 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP•Na₄)

• CAS No: 3794-83-0

• Active Content: 29.0-31.0% (as HEDP•Na₄, liquid); 79.9% (as HEDP•Na₄, solid)

Performance & Applications

Core Performance

As a premium organophosphonate scale and corrosion inhibitor, HEDP•Na₄ delivers standout capabilities:

• Excels as a calcium carbonate scale inhibitor, effectively controlling scale formation in water systems.

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

) and dissolves oxides on metal surfaces.

• Maintains reliable scale/corrosion inhibition even at temperatures up to 250℃.

• The solid form (white powder) is water-soluble, non-hygroscopic, easy to transport, and specially suitable for use in harsh cold environments.

Key Application Scenarios

1 - Water Treatment Systems: Used for scale and corrosion inhibition in low-pressure boiler water, circulating water, industrial/municipal clean water systems; also acts as a metal corrosion inhibitor in swimming pool disinfection.

2 - Industrial & Textile Sectors: Serves as a metal/non-metal cleaner (light textile industry); functions as a peroxide stabilizer and color fixative (dyeing industry); acts as a complexing agent (cyanide-free electroplating); and works as a daily chemical product additive.

3 - Energy & Chemical Industries: Widely applied in industrial circulating cooling water (power, chemical, metallurgy, fertilizer sectors), low-pressure boilers, and oilfield water injection/transmission pipelines for scale and corrosion control.

Technical Specifications

Item

Liquid Specification

Solid Specification Appearance

Colorless to pale yellow transparent liquid

White powdered solid Active Component (as HEDP)

20.3-21.7%

56.0% Active Component (as HEDP•Na₄)

29.0-31.0%

79.9% Total Phosphorus (as PO₄³⁻)

18.4-20.4%

52.0% Iron (as Fe²⁺) Content ≤

20 mg/L

35.0 mg/L Loss on Drying ≤

--

15% Density (20℃)

1.26-1.36 g/cm³

-- pH

10.0-12.0 (undiluted liquid)

11.0-12.0 (1% aqueous solution) Packaging & Storage

• Liquid HEDP•Na₄: Packed in plastic drums (30kg/drum or 250kg/drum).

• Solid HEDP•Na₄: Packed in plastic woven bags lined with polyethylene (25kg/net bag; customizable per user needs).

• Store in a cool indoor area.

Shelf life: 10 months.

Safety Precautions

HEDP•Na₄ is alkaline.

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.
  
  Our company has more than 47 years history of chemical manufacturing,we have top-class foundation and chemical manufacturing technology, strong techincal strength and advanced manufacturing technology.
  
  Based on years of accumulated experience,we have established a complete quality controlling system and market network system.
  
  Especially in the production of 99.5%Sulfamic Acid,our factory has developed a unique system of quality control and inspection in the production process of sulfamic acid,to ensure that each batch of goods we send to customers are qualified and stable quality.
  
  In terms of product packaging and delivery,we will provide you with professional loading,
  
  we have one team supervise uploading the materials,to check the container, the packages to make sure the goods are well packed when they reach the customer.