Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP.Na2) CAS NO.7414-83-7

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Available Specifications:
liquid(1-23)Metric Ton710/Metric Ton1USDpowder(1-23)Metric Ton1590/Metric Ton1USD

Product Details

Keywords

HEDP.Na2
90% min powder
20% min liquid

Quick Details

ProName: Disodium of 1-Hydroxy Ethylidene-1,1-D...
CasNo: 7414-83-7
Molecular Formula: C2H6O7P2Na2
Appearance: liquid and powder
Application: HEDP.Na2 is widely used in circulating...
DeliveryTime: Shipped in 7 days after payment
PackAge: 1000L IBC and 25kg/bag,palletized,shri...
Port: Shanghai,China
ProductionCapacity: 45000 Metric Ton/Year
Purity: 20% and 90%
Storage: In shady room and dry place.
Transportation: Sea freight or air cargo according to ...
LimitNum: 1 Metric Ton
Heavy metal: 0
Grade: Industrial Grade

Superiority

The HEDP.Na2 has two forms: liquid and powder.

The powder is 90% min;the liquid is 20% min.

It is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid or alkaline and chloride oxidation tolerance are better than that of other organophosph-onic acids. HEDP.Na2 can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. HEDP.Na2 has good scale inhibition effects and obvious dissolution threshold effects. When used with other water treatment chemicals, the synergistic effects is better.

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Details

Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

(HEDP.Na2)

CAS No.: 7414-83-7

Molecular Formula: C₂H₆O₇P₂Na₂ Molecular weight: 250

Properties:

HEDP•Na2 is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions, it can dissolve the oxidized materials, has good scale and corrosion inhibition effects even under 250℃.

Specification:

Items	Index
Appearance	Colorless to yellowish transparent liquid	White powder
Active content（HEDP）%	16.5 min	74.0-79.0
Active content (HEDP•Na2)%	20.0 min	90 min
density (20℃)g/cm3	1.12-1.22	--
Fe Ions(Fe³⁺) PPM	--	35 max
Phosphorous acid (as PO₃3-)%	--	2 max
Moisture, %	--	3.0-6.0
PH (1% water solution)	4.0-6.0	4.0-6.0

Usage:

HEDP.Na2 is widely used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry,HEDP.Na2 is used as detergent for metal and nonmetal. In dyeing industry, HEDP.Na2 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP.Na2 is used as chelating agent.