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Potassium Salt Of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

Potassium Salt Of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
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Potassium Salt Of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

CAS No. 67953-76-8
Molecular Formula:C2H6O7P2K2

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Description

HEDP·K2

Potassium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP·K2)

CAS No. 67953-76-8
Molecular Formula: C₂H₆O₇P₂K₂
Structural Formula:

Properties

HEDP•K2 is the potassium salt of HEDP, HEDP•K2 has better dissolution ability than that of sodium salt under neutral condition. HEDP•K2 is a good scale inhibitor for calcium carbonate, it can be used in metal corrosion inhibitor, antifouling agent of swimming pool, metal cleaning, volume cleaning, iron dust controlling, metal pretreatment, low pressure boiler water treatment and circulating water treatment, etc.

Specification

Items	Index
Appearance	Colorless to yellowish transparent liquid
Active content (HEDP) %	26.0-30.0
Total phosphoric acid (PO₄^3-) %	24.7-26.7
Fe, mg/L	20.0 max
Density (20℃) g/cm3	1.30-1.40
pH (1% water solution)	6.0-8.0