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HEDP 60%
- Product No.:CAS 2809-21-4
1. 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
2.Cas no.: 2809-21-4
3.Active content (HEDP) :58.0-62.0%
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
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. 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.
Technical specifications:
Product Name |
HEDP |
Batch No.: |
20200301 |
Sample quantity |
500g |
Test date |
March 1st of 2020 |
Standard |
GB/T26324-2010 |
||
Test Items |
|
Standard |
Test Result |
Active Content (HEDP), % |
≥60 |
60.50 |
|
Phosphorous acid (as PO33-)%) |
≤2.0 |
0.8 |
|
Phosphoric acid (as PO43- )% |
≤0.8 |
0.2 |
|
PH (1% solution) |
≤2.0 |
1.6 |
|
Density (20°C)g/cm3 |
≥1.40 |
1.465 |
|
Chelating value mg/g |
≥500 |
533 |
PACKING AND SHIPMENT:
250KG/DRUM; 18Tons/20GP;
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A2: We can provide you free sample for our existing products, the lead time is about 1-2 days.
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Q5: If the inspection result can not meet the agreement between the two sides,
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