Product Specifications
| Prod Model: |
salus |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Model No: |
Industry Grade |
| Appearance: |
Liquid |
Product Description
Product Description
CAS No. 2809-21-4
Molecular Formula: C2H8O7P2
Molecular Weight: 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 centigrade. 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.
Use:
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.
Packing and Storage:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.
Storage for ten months in room shady and dry place.
|
ITEM |
Standard |
|
APPEARANCE |
Liquid |
Powder |
|
Active Content (HEDP)% ≥ |
60.0 |
89.0 |
|
Phosphorous acid(PO 3 3- )% ≤ |
2.0 |
0.80 |
|
Phosphoric acid(PO 4 3- )% ≤ |
0.8 |
0.50 |
|
Chlorides (Cl - )% ≤ |
0.01 |
0.01 |
|
PH(1% ) ≤ |
2.0 |
2.0 |
|
Density(20°C)g/cm 3 ≥ |
1.40 |
__ |
|
Calcium chelating value mg/g ≥ |
500 |
__ |
|
Fe 2+ mg/L ≤ |
10 |
5.0 |
|
Active component (HEDP@H 2 O) % ≥ |
__ |
98.0 |
Qingdao Salus International Trade Co., Ltd is located in Qingdao City which is one of main seaports in North China. This is a specialized Chemicals Company, Which is specialize in the development, marketing and after-sales service of Chemicals, Fertilizers. Our management team has been in the international trade more than 10 years, with deep penetration in Chinese market.
We always insist on the spirit of "sincerity, quality first, mutual benefit and common development". Also have professional staff, friendly customer service enables us to fulfill your needs throughout the world. Being online and on time has always been our first rule of serving customers. Right now, our products have been exported to the market of Europe, America, Middle East, Africa, and some other countries, and obtain highly praise among the clients.
We sincerely welcome new and old customers at home and abroad. Let us work together to develop the international market.
Welcome your enquiry. We will serve you.
![[2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)](/proimages/2f0j00KZnTiNaUAoqW/2809-21-41-hydroxyethylidene-1-1-diphosphonic-acid-hedp-.jpg "[2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)")
