Hot Selling HEDP Poeder 90% 1-Hydroxy-1, 1-Diphosphonic Acid 2809-21-4

• Customization: Available
• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• Model NO.: HEDP 90%
• EINECS: 220-552-8
• Environmental Protection: Yes
• Certification: MSDS, COA, TDS, Moa
• Color: White
• Classification: Daily Chemical
• Function: Nourishing and Balancing Nutrition
• Appearance: Powder
• Melting Point: 198~199ºC
• Density: 1.45 (60% Aq.)
• Vapor Pressure: 0PA at 25ºC
• Storage Conditions: Sealed in Dry,Room Temperature
• Transport Package: 25kg/Bags
• Specification: 90%
• Trademark: SINOBIO
• Origin: China
• HS Code: 2942000000
• Production Capacity: 5000t/Year

Product Description

 

Product Description

HOT Selling HEDP POEDER 90% 1-HYDROXY-1,1-DIPHOSPHONIC ACID 2809-21-4 

Hydroxyethylidene diphosphonic acid, also known as HEDP, is a diphosphate compound used in the production processes of detergents, water purification, cosmetics, and drugs.

1. Name: 1-HYDROXY-1,1-DIPHOSPHONIC ACID
2. CAS: 2809-21-4 
3. Chemical formula: C2H8O7P2
4. Appearance: White powder
5. Application:   
6. Scale inhibition: It can form stable complexes with calcium, magnesium and other ions in water, interfere with the crystal growth of calcium carbonate, calcium sulfate and others, and prevent scaling on the surfaces of pipelines, heat exchangers, etc. It is widely used in industrial circulating cooling water systems such as those in steel plants and thermal power plants to maintain the heat transfer efficiency of equipment and reduce energy consumption and maintenance costs.
7. Corrosion inhibition: It forms a protective film on the metal surface to block corrosive substances from contacting the metal. It has a good corrosion inhibition effect on metal equipment such as steel and copper and prolongs the service life of equipment.
   As a cleaning additive, it can effectively remove rust, scale and other dirt on the metal surface. It is applied in scenarios such as pre-commissioning cleaning of chemical plants and boiler cleaning. It has good cleaning effect and low corrosiveness to metals.
    
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Technical data sheet

Property	Value
Melting point	198 - 199°C
Boiling point	578.8 ± 60.0 °C (Predicted)
Density	1.45 (60% aq.)
Vapor pressure	0Pa at 25°C
Storage conditions	Sealed in dry, Room Temperature
Solubility	Slightly soluble  slightly soluble in water
Acid dissociation constants (pKa)	1.35, 2.87, 7.03, 11.3 (at 25°C)
Form	Powder
Color	White
pH value	pH (1.7→100, 25°C): 1.3 - 1.8
Water solubility	Soluble in water.

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