scale inhibitor,Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid,HEDP·Na4

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Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

(HEDP·Na4)

[CAS No.] 29329-71-3 (x-Na), 3794-83-0 (4-Na)

Molecular Formula: C₂H₂O₇P₂Na₄ Molecular weight: 294

Structural Formula:

Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP·Na4)

Properties:

It is the sodium salt of HEDP, it is an excellent calcium carbonate scale inhibitor, it can be used in low pressure boiler water system, circulation water system, industrial and municipal cleaning water system and swimming pool.

Specification:

items	index
Appearance	Colorless or light yellow transparent liquid
Active component（HEDP）％	20.3-21.7
Active component（HEDP•Na₄）％	29.0-31.0
Total phosphoric (as PO₄^3-) ％	19.4
Fe ppm ≤	10.0-12.0
pH value（1％ water solution）	4.0-6.0
Density (20℃) g/cm3 ≥	1.31

Package and Storage:

30kg or 250kg plastic barrel, or confirmed by clients. Storage for ten months in room shady and dry place.

Safety Protection:

Weak Acidity, Avoid contact with eye and skin, once contacted, flush with water.