Water Treatment HEDP 2809-21-4

  • CAS No.: 2809-21-4
  • Type.: Water Treatment
  • Appearance: Clear, water-white to pale yellow solution
  • Molecular Formula: C2H8O7P2
  • Shelf Life: 2 years
  • Min Order Quantity: One Container
  • Specification
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Water Treatment HEDP (also named Hydroxyethylidene Diphosphonic Acid, or 1-Hydroxyethylidene-1, 1-diphosphonic acid) is a kind of widely used Water Treatment.

Items of Analysis Standard                     Analysis Result         
Appearance Clear, water-white to pale yellow solution Clear, water-white to pale yellow solution
Total Active Acid,% 58.0-62.0 60.05%
Phosphorous Acid (as PO33-), % 2.0 Maximum 1.35%
Phosphoric Acid (as PO43-), % 0.8 Maximum 0.68%
Chloride (as Cl-), % 1.0 Maximum <1.0%
Specific gravity (at 20℃) 1.41-1.46 1.436
pH, (1% solution 25℃) 1.0-2.0 1.75
Ca2+ Sequestration, (as CaCO3 mg/g ) 450 Minimum 520mg/g
HEDP/Hydroxyethylidene Diphosphonic Acid is a kind of Water Treatment.  Richest Group is a Leading Chemical Supplier/Manufacturer of Water Treatment for 10 years.
We supply high quality Water Treatment (HEDP/Sodium Chlorite/TCCA/ATMP/PBTC/PAC, etc) in best price. 
Find Quality Water Treatment HEDP/Hydroxyethylidene Diphosphonic Acid​​​​​​​ from Verified Supplier.

HEDP/Hydroxyethylidene Diphosphonic Acid​​​​​​​ Application:
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.

In light woven industry, HEDP is used as detergent for metal and nonmetal.

In dyeing industry, HEDP/Hydroxyethylidene Diphosphonic Acid​​​​​​​ is used as peroxide stabilizer and dye-fixing agent;

In non-cyanide electroplating, HEDP is used as chelating agent.

The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
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