Email : zhou@sinobiochemistry.com   Phone : +86-411-84820079
PVPK30 for toothpaste supplier
Home » Products » Water Treatment Chemical » Corrosion Inhibition 1-Hydroxyethylidene-1, 1-Diphosphonic Acid HEDP 98% CAS 2809-21-4

loading

Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

Corrosion Inhibition 1-Hydroxyethylidene-1, 1-Diphosphonic Acid HEDP 98% CAS 2809-21-4

CAS No. 2809-21-4
EINECS: 220-552-8
Molecular Formula: C2H8O7P2
Molecular weight: 206.02
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.
Availability:
Quantity:
  • HEDP 98%

  • SINOBIO

  • 3808940090

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




CAS No.   2809-21-4

Molecular Formula:   C2H8O7P2                                                                                         

Molecular weight:  206.02

Hazard class/UN No./Packaging: UN 3265 8/PG III

Structural Formula: 

325ff0b675fd4f6eef6d58c4afc2349a_HEDP


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. HEDP shows excellent scale and corrosion inhibition effects under temperature 250°C. 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 chlo rine 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:


Item  Standard 
Appearance

white crystalline powder

Active content (as HEDP. H2O) (%) 98.0 min

Phosphorous acid as PO33- %

0.8 max

Phosphoric acid as PO43 %

0.5 max
Chloride as Cl  ppm 100 max
PH (1% solution) @20 °C 2.0 max
Iron content (Fe ppm) 20.0 max


Application:


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.  

Used in detergents, water treatment, cosmetics and pharmaceuticals. Used in corrosion inhibition in circulating cool water systems, oil fields and low-pressure boilers with electric power, the chemical industry, metallurgy and fertilizers.



Package and Storage:


HEDP 98% : 25kg,  25 MT with pallet, 27 MT without pallet


Storage for one year in shady room and dry place.


HEDP Powder CAS 2809-21-4   HEDP Powder CAS 2809-21-4   HEDP Powder CAS 2809-21-4


Previous: 
Next: 
Contact Us

Product Category

If you have any questions, please contact us via email or telephone and we will get back to you as soon as possible.

Quick Links

Product Category

Contact Us

Copyright © 2023 Dalian Sinobio Chemistry Co.,Ltd. All Rights Reserved.  Sitemap | Technology by leadong.com | Privacy Policy

辽ICP备2023002069号-1