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Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid,HEDP.NA2

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

價格 詢價
包裝 250kg/drum or 1250kg/IBC
最小起訂量 250kg/drum or 1250kg/IBC
發(fā)貨地 江蘇
更新日期 2011-08-01

產(chǎn)品詳情

中文名稱:Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid英文名稱:HEDP.NA2
CAS:7414-83-7有效期: 一年
2011-08-01 Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP.NA2 RMB 一年

Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic
Acid
(HEDP•Na2)

 

CAS No.  7414-83-7

Molecular Formula: C2H6O7P2Na2       Molecular weight: 250

 Structural Formula:

Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na2)

Properties:

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

Specification:

items
index
Appearance
Colorless to light yellow transparent liquid
White powder
Active component (HEDP)%
16.5 min
74.0-79.0
Active content(HEDP•Na2)%
20.0 min
89.8 min
density (20℃)g/cm3
1.12-1.22
--
Fe,mg/L
--
35 max
Phosphorous acid (PO33-)%
--
3 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.

Package and Storage:

Liquid: 200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.

Solid: 200L plastic drum,IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.

Safety Protection:

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

Keywords:  HEDP·Na2
關(guān)鍵字: water treatment chemicals ,HEDP.NA4,HEDP.NA2

公司簡介

Best Industrial water treatment chemicals from China-HEDP/ATMP/PBTC/HPAA/PCA/HPMA/TTA/BTA/TTAS/DTPMPA/PAA/PCA/PCACPAPE/MA-AA/AA-AMPS/EDTMPS/BHMT and more, If you are interested in our products ,please contact us freely.
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