سعر فوب
أحصل على آخر سعر200 ~ 350 / Metric Ton
|1 Metric Ton Minimum Order
بلد:
China
نموذج رقم:
-
سعر فوب:
200 ~ 350 / Metric Ton أحصل على آخر سعر
الموقع:
Weifang,China
سعر الحد الأدنى للطلب:
200 per Metric Ton
الحد الأدني للطلب:
1 Metric Ton
تفاصيل التغليف:
HEDP solid: 25kg/bag, customers� requirement
موعد التسليم:
3-5 working days
القدرة على التوريد:
3000 Metric Ton per Month
نوع الدفع:
T/T, L/C, Western Union, Other
مجموعة المنتج :
الشخص الذي يمكن الاتصال به 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 | |
| بلد: | China |
| نموذج رقم: | - |
| سعر فوب: | 200 ~ 350 / Metric Ton أحصل على آخر سعر |
| الموقع: | Weifang,China |
| سعر الحد الأدنى للطلب: | 200 per Metric Ton |
| الحد الأدني للطلب: | 1 Metric Ton |
| تفاصيل التغليف: | HEDP solid: 25kg/bag, customers� requirement |
| موعد التسليم: | 3-5 working days |
| القدرة على التوريد: | 3000 Metric Ton per Month |
| نوع الدفع: | T/T, L/C, Western Union, Other |
| مجموعة المنتج : | Phosphonates Antiscalants |
