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Corrosion Inhibitor HEDP 2809-21-4

Corrosion Inhibitor HEDP 2809-21-4

FOB Price

أحصل على آخر سعر

200 ~ 350 / Metric Ton

|

Minimum Order

Place of Origin:

-

Price for Minimum Order:

Minimum Order Quantity:

1 Metric Ton

Packaging Detail:

HEDP solid: 25kg/bag, customers’ requirement.

Delivery Time:

3-7 days

Supplying Ability:

2000 Metric Ton per Month

Payment Type:

T/T, L/C, PayPal

الاتصال الآن
Shouguang Starail Economic and Trade Co., LTD

Shouguang Starail Economic and Trade Co., LTD

China

عضو مجاني

الشخص الذي يمكن الاتصال به Matthew

Weifang, Shandong

الاتصال الآن

Description

*-Hydroxy Ethylidene*1,*-Diphosphonic Acid 
(HEDP)

CAS No.  ********4
Molecular Formula:   C2H8O7P2                Molecular weight: **6.*2
Structural Formula:
 

Properties:

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals surfaces. HEDPshows excellent scale and corrosion inhibition effects under temperature **0℃. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

Specification:

Items Index
Appearance Clear, Colorless to pale yellow aqueous solution White crystal powder
Active content (HEDP)% *0.0 min *0.0 min
Active content (HEDP·H2O)% - *8.0 min
Phosphorous acid (as PO3*-)% 1.0 max 0.8 max
Phosphoric acid  (as PO4*- )% 0.6 max 0.5 max
Chloride (as Cl-)% 0.*1 max 0.*1 max
pH (1% water solution) 2.0 max 2.0 max
Density  (*0℃)g/cm3 1.*0 min -
Fe, mg/L *0.0 max 5.0 max
Colour APHA (Hazen) *0.0 max -
Ca sequestration (mg CaCO3/g) **0.0 min  
 

Usage:

HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of ***0mg/L is preferred as scale inhibitor, ****0mg/L as corrosion inhibitor, and ********0mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

Package and Storage:

HEDP liquid: **0L plastic drum,IBC(***0L),customers requirement.
HEDP solid: *5kg/bag,customers requirement.
Storage for twelve months in room shady and dry place.
Synonyms:
HEDP;HEDP(A);HEDPA;

 

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إلى:

Matthew < Shouguang Starail Economic and Trade Co., LTD >

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