Good User Reputation for Outdoor Furniture Wicker - HEDP Solid, Liquid – HGW Trade
Short Description:
Classification: Chemical Auxiliary Agent CAS No.: 2809-21-4 MF: C2H8O7P2 Purity: ...
Good User Reputation for Outdoor Furniture Wicker - HEDP Solid, Liquid – HGW Trade Detail:
- Classification:
- Chemical Auxiliary Agent
- CAS No.:
- 2809-21-4
- MF:
- C2H8O7P2
- Purity:
- 58-60%
- Place of Origin:
- China (Mainland)
- Type:
- Other
- Usage:
- Water Treatment Chemicals
Packaging & Delivery
- Packaging Details
- 200L in plastic barrel for export, 200kg or 250kg per barrel, or confirmed by clients.
- Delivery Time
- 15 days after the contract being signed
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
(HEDP)
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°C. 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.
Specifications
|
items |
index |
|
|
Appearance |
Colorless or light yellow transparent liquid |
White crystal powder |
|
Active content (HEDP)% |
58.0-62.0 |
90.0min |
|
Phosphorous acid (as PO33-)% |
2.0 max |
0.8 max |
|
Phosphoric acid (asPO43- )% |
0.8 max |
0.5 max |
|
Chloride (as Cl-)% |
1.0 max |
0.1max |
|
pH (1% solution) |
2 max |
2 max |
|
Density (20°C)g/cm3 |
1.40 |
- |
|
Fe,mg/L |
10 max |
5 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.
Safety Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush with water.
Related Products: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP
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Potassium salt of1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP•Kx
Product detail pictures:
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We stick with the theory of "quality first, company first, steady improvement and innovation to satisfy the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our provider, we deliver the items together with the fantastic good quality at the reasonable value for Good User Reputation for Outdoor Furniture Wicker - HEDP Solid, Liquid – HGW Trade, The product will supply to all over the world, such as: Lesotho, Uruguay, Switzerland, The best and original quality for spare parts is a most important factor for transportation. We may stick on supplying original and good quality parts even a little profit earned. God will bless us to do kindness business forever.
By Josephine from Croatia - 2017.10.23 10:29
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
By Bess from Seattle - 2018.09.23 18:44
