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Home » Products » Water Treatment Chemicals and Boicides » 1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP) CAS 2809-21-4

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1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP) CAS 2809-21-4

  • 220-552-8

  • HEDP

  • Yes

  • UN 3261 Class8 PG III

Availability:

Specification

Item Specification
Appearance White crystalline powder
Active Matter (as HEDP.H2O), % 98.0 min
Active acid content, % 90.0 min
H3PO3 (As PO33- ), % 0.8 max
H3PO4 (As PO43- ), % 0.5 max
Chloride (as Cl-),ppm 100 max
PH (As 1% solution,20℃ ) 2.0 max
Iron (As Fe), ppm 20ppm max

Application

HEDP is noted for excellent CACO3 scale inhibition and chlorine stability. It is widely used in industry as a sequestering agent and calcium carbonate scale inhibitor for applications in cooling water treatment, boiler water treatment, industrial and institutional cleaners, swimming pool stain prevention, personal care products, metal ion control.
Recommended Uses: Cooling water treatment, Boiler treatment, I & I Cleaners, Metal Ion Control, Swimming pool, Personal care products.
  Packing and Storage
Packing: In 25kgs net plastic woven bag.

Storage: Keep tightly closed.

Safety InformationUN 3261 Class 8 PG III
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