High Quality 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid HEDP CAS 2809-21-4

Product Details
Most of our employees have been engaged in technical research, production and sales service of cartridge for a long time, and have unique insight in the theory of application technology of Tetrabromobisphenol A Bis(2,3-dibromopropyl)ether OBE, CAS No. 1163-1905, CAS No.2235-43-0. We would like to establish good business relationships as well as friendship with you in the near future. We believe that everyone is an independent individual and has the right to equality and respect. 'Quality first, credit first' is our basic philosophy. It is our responsibility to provide customers with first-class products and services. Customer needs are everything we work for. We are willing to make progress and grow together with customers. We have won the lasting trust of our customers with an efficient and rigorous professional service team and high-quality products.

Chemical name:

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

CAS No.:

2809-21-4

Molecular formula/weight:

C2H8O7P2=206.02 

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. 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.

The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.

SPECIFICATION:


Items

Liquid

Solid

Appearance

Colorless or pale yellow solution

White crystalline powder

Active content

60.0% min

90.0 min.

Phosphorous acid (as PO33-)

2.0% max.

0.8 max

Phosphoric acid  (as PO43- )

0.8% max.

0.5 max

Chloride (as Cl-) ppm

100 max

100 max

PH value of 1% solution

2.0 max. 

2.0 max

Density (20)g/cm3

1.44 min


Fe mg/L

10 max. 

5 max

Color(Hazen)

50 max


Ca sequestration (mg CaCO3/g)

500 min


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. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

PACKAGE:

Liquid:250 kg net PE drums or 1250kg net IBC.  

Solid: 25 kg net bags.

 


With wide experience and expertise, Richem International is specialized in supplying quality and effective 1-hydroxy ethylidene-1,1-diphosphonic acid (hedp). As one of the leading manufacturers and suppliers in China, we are equipped with a professional and productive factory. Please rest assured to buy.
Creating and providing quality High Quality 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid HEDP CAS 2809-21-4 and value-added services for customers is the value of our company's operation. In the process of serving for many enterprises, our company always insists on quality first and has been gradually recognized and supported by our customers. We sincerely look forward to hearing from you. Please give us a chance to show you our professionalism and passion. We wholeheartedly welcome outstanding friends from all walks of life at home and abroad to come and cooperate!
Hot Tags: 1-hydroxy ethylidene-1,1-diphosphonic acid (hedp), suppliers China, manufacturers, factory, Accelerating agent, DBDPE, Polymerization initiators, TRIGONOX 101, 2-hydroxyphosphonoacetic acid, Amino Tri(Methylene Phosphonic Acid) ATMP
Inquiry

You Might Also Like