离岸价格
Get Latest Price200 ~ 350 USD / Metric Ton
|1 Metric Ton Minimum Order
国:
China
モデル番号:
-
离岸价格:
200 ~ 350 USD / Metric Ton Get Latest Price
ロケーション:
Weifang,China
最低注文量の価格:
200 per Metric Ton
最低注文量:
1 Metric Ton
パッケージの詳細:
HEDP solid: 25kg/bag, customers� requirement
納期:
3-5 working days
供給能力:
3000 Metric Ton per Month
支払いタイプ:
T/T, L/C, Western Union, Other
製品グループ :
連絡先担当者 Matthew
Weifang, Shandong
1-Hydroxy
Ethylidene-1,1-Diphosphonic
Acid
(HEDP)
CAS No.
2809-21-4
Molecular
Formula:
C2H8O7P2 Molecular
weight: 206.02
Structural
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.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
ofHEDP 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-)% | 1.0 max | 0.8 max |
| Phosphoric acid (as PO43- )% | 0.6 max | 0.5 max |
| Chloride (as Cl-)% | 0.01 max | 0.01 max |
| pH (1% water solution) | 2.0 max | 2.0 max |
| Density (20℃)g/cm3 | 1.40 min | - |
| Fe, mg/L | 10.0 max | 5.0 max |
| Colour APHA (Hazen) | 10.0 max | - |
| Ca sequestration (mg CaCO3/g) | 500.0 min | |
| 国: | China |
| モデル番号: | - |
| 离岸价格: | 200 ~ 350 / Metric Ton Get Latest Price |
| ロケーション: | Weifang,China |
| 最低注文量の価格: | 200 per Metric Ton |
| 最低注文量: | 1 Metric Ton |
| パッケージの詳細: | HEDP solid: 25kg/bag, customers� requirement |
| 納期: | 3-5 working days |
| 供給能力: | 3000 Metric Ton per Month |
| 支払いタイプ: | T/T, L/C, Western Union, Other |
| 製品グループ : | Phosphonates Antiscalants |
