FOB Price
Get Latest Price800 ~ 900 USD / Ton
|1 Ton Minimum Order
Country:
China
Model No:
2809-21-4
FOB Price:
800 ~ 900 USD / Ton Get Latest Price
Place of Origin:
Shandong
Price for Minimum Order:
800 per Ton
Minimum Order Quantity:
1 Ton
Packaging Detail:
200L plastic drum
Delivery Time:
7days
Supplying Ability:
50 Ton per Day
Payment Type:
L/C, T/T
Product Group :
-
Contact Person Ryan
Lianyungang road, Qingdao, Shandong
ryan at
watertreatmentchem dot com
*-Hydroxy Ethylidene*1,*-Diphosphonic Acid
(HEDP) CAS No. ********4
Molecular Formula: C2H8O7P2
Molecular weight: **6.*2
Synonyms: Dequest ***0;
Etidronic AcidStructural Formula:
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. It shows excellent scale and corrosion inhibition
effects under temperature **0ƒ.
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, it has good antiscale and visible threshold effects.
When built together with other water treatment chemicals, it
shows good synergistic effects.
Solid HEDP is crystal powder, suitable for usage in winter and
freezing districts. Due to 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) % | *8.***2.0 | *0.0min |
|
Phosphorous acid (as PO**- ) %
|
1.0 max | 0.8 max |
| Phosphoric acid (as PO**- ) % | 0.6 max | 0.5 max |
| Chloride (as Cl- ) ppm | **0.0 max | **0.0max |
| pH (1% solution) | 2.0 max | 2.0 max |
| Density (*0ƒ) g/cm3 | 1.***1.*7 | - |
| Fe, mg/L | *0.0 max | 5.0 max |
| Colour APHA (Hazen) | *0.0 max | - |
| Acetic acid % | 0.5 max | |
| Ca sequestration (mg CaCO3/g ) | **0.0 min | |
Usage:
HEDP is used as scale and corrosion inhibition, often build with
polycarboxylic acid, 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, it is used as peroxide stabilizer
and dye-fixing agent; In non-cyanide electroplating, it is used
as chelating agent.
Package and Storage:
Liquid:**0L plastic drum,
IBC(***0L), customers requirement.
Solid: *5kg/bag, customers requirement.
Storage for ten months in room shady and dry place. Safety
Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush
with water.
| Country: | China |
| Model No: | 2809-21-4 |
| FOB Price: | 800 ~ 900 / Ton Get Latest Price |
| Place of Origin: | Shandong |
| Price for Minimum Order: | 800 per Ton |
| Minimum Order Quantity: | 1 Ton |
| Packaging Detail: | 200L plastic drum |
| Delivery Time: | 7days |
| Supplying Ability: | 50 Ton per Day |
| Payment Type: | L/C, T/T |
| Product Group : | - |
