离岸价格
获取最新报价200 ~ 350 / Metric Ton
|1 Metric Ton Minimum Order
国家:
China
型号:
-
离岸价格:
200 ~ 350 / Metric Ton 获取最新报价
位置:
Weifang,China
最小订单价格:
200 per Metric Ton
最小订单:
1 Metric Ton
包装细节:
HEDP solid: 25kg/bag, customers� requirement
交货时间:
3-5 working days
供应能力:
3000 Metric Ton per Month
付款方式:
T/T, L/C, Western Union, Other
联系人 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 | |
| 国家: | China |
| 型号: | - |
| 离岸价格: | 200 ~ 350 / Metric Ton 获取最新报价 |
| 位置: | Weifang,China |
| 最小订单价格: | 200 per Metric Ton |
| 最小订单: | 1 Metric Ton |
| 包装细节: | HEDP solid: 25kg/bag, customers� requirement |
| 交货时间: | 3-5 working days |
| 供应能力: | 3000 Metric Ton per Month |
| 付款方式: | T/T, L/C, Western Union, Other |
| 產品組 : | Phosphonates Antiscalants |
