1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid / HEDP /2809-21-4

Product Details
Our company insists all along the quality policy of 'product good quality is base of enterprise survival; buyer fulfillment will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff' and also the consistent purpose of 'reputation very first, shopper first' for Dequest 2016, Polymerization initiators, Tetrabromobisphenol A bis(2,3-dibromopropyl)ether. In order to clarify employees' understanding of the corporate philosophy and understanding of the code of conduct, we are working hard to establish an excellent corporate culture. Our company improves the management level in an all-round way through the cultivation of excellent talents . We vigorously promote the wind of diligent learning, so that the improvement of self has become the conscious action of the enterprise staff.

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.
Our products are broadly identified and trustworthy by people and may meet continually modifying financial and social requires of 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid / HEDP /2809-21-4. High-quality products and meeting customer needs are the consistent pursuit of our company. We hope to have the opportunity to cooperate sincerely with you, and wish to have the opportunity to be your reliable friend! In the future, our company will follow the business philosophy of "all for users, all from innovation".
Hot Tags: 1-hydroxy ethylidene-1,1-diphosphonic acid (hedp), suppliers China, manufacturers, factory, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP), Polymerization catalysts, HBCD, 2-Hydroxy Phosphonoacetic Acid(HPAA), BHMTPMPA, BPO
Inquiry

You Might Also Like