Find CAS No. 2809-21-4 C2H8O7P2, HEDPA 1-Hydroxy Ethylidene-1 1-Diphosphonic Acid, Etidronic Acid 1-Hydroxy-1 1-Ethanediyl Ester on Industry Directory, Reliable Manufacturer/Supplier/Factory from China.

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1-Hydroxy Ethylidene-1 1-Diphosphonic Acid  (HEDP)
  • 1-Hydroxy Ethylidene-1 1-Diphosphonic Acid  (HEDP)

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

Payment Type: L/C,T/T
Terms of Trade: FOB,CFR,CIF
Delivery Time: 10 Days

Basic Info

Model No.: 2809-21-4

Product Description


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



CAS No. 2809-21-4

Molecular Formula: C2H8O7P2 Molecular weight: 206.02

Structural Formula:

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (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. HEDPshows 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 Index
Appearance Clear, Colorless to pale yellow aqueous solution White crystal powder
Active content (HEDP)% 60.0 min 90.0 min
Active content (HEDP·H2O)% - 98.0 min
Phosphorous Acid (as PO33-)% 2.0 max 0.8 max
Phosphoric acid (as PO43- )% 0.8 max 0.5 max
Chloride (as Cl-)% 0.02 max 0.01 max
pH (1% water solution) 2.0 max 2.0 max
Density (20℃)g/cm3 1.40 min -
Fe, mg/L 20.0 max 10.0 max
Ca sequestration (mg CaCO3/g) 500.0 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 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 and Storage:

HEDP liquid: 200L plastic drum,IBC(1000L),customers` requirement.

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

Storage for twelve months in room shady and dry place.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.

Jinan Forever Chemical Co., Ltd.

  Jinan Forever Chemical Co., Ltd is a collection research and development, the trade to a body complex economic entity. By specialized management industrial chemicals primarily, AC blowing agent, Hydrazine Hydrate, Ferric Chloride Anhy, 2-aminophenol, Fluorescent brightener, Phosphorous Acid, Pyridine, Sodium Carbonate and so on fine chemical product ability. Our products have obtained the ISO9001 international quality system authentication.
In the last few years, repling on the high-quality request, company`s product sale is extremely widespread. The year turnover continues to rise. The company is basing the domestic market development, at the same time it is also developing actively the international market and has already obtained the good effect. Now our company 30% products sell to the foreign market and we have obtained the oversea customers` consistent high praise and favour.
For company`s further development, the company leaders seek variously the long-term cooperation unit and have already established the good cooperation relations with the many domestic large-scale chemical companies, expanding own management scope and meeting the general customers` different demand. The company observes [the quality is excellent and the price is cheap" objective, consummation service attitude and first-class market management pattern. Thus we have won the general customers` trust. Our company expect to obtain the domestic and foreign colleagues` support vigorously in the next development. The company is willing sincerely to cooperate with the domestic and foreign merchants, communal development.

Company Info
  • Company Name: Jinan Forever Chemical Co., Ltd.
  • Representative: Ma Guoguang
  • Product/Service: Hydrazine Hydrate , 2-Aminophenol , Ferric Chloride Anhydrous , AC Blowing Agent , APIs , Brightening Agent
  • Capital (Million US $): US$1 Million
  • Year Established: 2005
  • Total Annual Sales Volume (Million US $): US$1 Million - US$2.5 Million
  • Export Percentage: 21% - 30%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 5
  • No. of R&D Staff: 11 -20 People
  • No. of QC Staff: 21 -30 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 3,000-5,000 square meters
  • Factory Location: Ningxia province, China
  • Contact Person: Ms. Grace Song
  • Tel: 86-157-63119761
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