Jiangyin Lanyu Chemical Co.,Ltd.
$800-1400 /metric ton
| Payment Type: | L/C,T/T |
| Min. Order: | 1 metric ton |
| Transportation: | Ocean,Land,Air |
| Port: | shanghai ,qingdao |
Classification: Chemical Auxiliary Agent
CAS No.: 2809-21-4
Other Names: hydroxyethane-1,1-diphosphonic acid
MF: CH3CPH(P(OH)2O)2
EINECS No.: 220-552-8
Type: Adsorbent
Adsorbent Variety: Activated Carbon
Usage: Coating Auxiliary Agents, Electronics Chemicals, Textile Auxiliary Agents, Water Treatment Chemicals
Brand Name: LY
Model Number: Cas no:: 2809-21-4
Types Of: Adsorbent
Application Field: Coating Auxiliary Agents, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Electronics Chemicals, Surfactants, Leather Auxiliary Agents, Paper Chemicals, Textile Auxiliary Agents, Petroleum Additives, Water Treatment Chemicals
Purity: 58.0-62.0%
Place Of Origin: Jiangsu, China
| Selling Units | : | metric ton |
| Package Type | : | packing: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 |
| Picture Example | : |
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TEL:+86-18015312596
SKP: john.jiao-l
1. 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
2.Cas no.: 2809-21-4
3.Active content (HEDP) :58.0-62.0%
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. 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 | index | |
| Appearance | Colorless or light yellow transparent liquid | White crystal powder |
| Active content (HEDP)% | 58.0-62.0 | 89.0 min |
| Phosphorous acid (as PO33-)% | 2.0 max | 0.5 max |
| Phosphoric acid (asPO43- )% | 0.8 max | 0.5 max |
| Chloride (as Cl-)% | 0.01 max | 0.01 max |
| pH (1 solution) | 2 max | 2 max |
| Density (20)g/cm3 | 1.40 | - |
| Fe ion ppm | 10 max | 20 max |
| Colour APHA (Hazen) | 40 max | - |
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: 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.
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