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HEDP Etidronic Acid CAS 2809-21-4 1-Hydroxyethylidene-1,1-diphosphonic Acid
Hydroxyethylidene diphosphonic acid (HEDP) exhibits better acid and alkali resistance and chlorine oxidation resistance than other organophosphonic acids (salts). It can form hexagonal ring chelates with metal ions in water, especially calcium ions, thus exhibiting good scale inhibition and a significant solubility limit effect. When used in combination with other water treatment agents, it demonstrates an ideal synergistic effect.
Hydroxyethylidene diphosphonic acid (HEDP) is an organophosphonic acid scale and corrosion inhibitor that can form stable complexes with various metal ions such as iron, copper, and zinc, and can dissolve oxides on metal surfaces. It remains stable at high pH levels, is not easily hydrolyzed, and does not readily decompose under normal light and heat conditions.
| Product Name | 1-DIPHOSPHONIC ACID, 98% HEDP |
| Purity | 99.5% |
| CAS NO | 2809-21-4 |
| Molecular Formula | C2H8O7P2 |
| Appearance | White crystal powder |
| Application | Hair perm ingredients |
Product Application:
1. As Food and beverage ingredients.
2. As Healthy Products ingredients and lose weight.
3. As Nutrition Supplements ingredients.
4. As a health food and cosmetic ingredients.
Hydroxyethylidene diphosphonic acid (HEDP) is typically used at a concentration of 1–10 mg/L as a scale inhibitor, 10–50 mg/L as a corrosion inhibitor, and 1000–2000 mg/L as a cleaning agent. It is usually used in combination with polycarboxylate-based scale and dispersant agents. For use in other industries, the dosage should be determined based on testing.
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