HEDP (Etidronic Acid)
HEDP (etidronic acid, CAS 2809-21-4), 60% solution and 90% powder, supplied wholesale by Zyntex. Phosphonate scale and corrosion inhibitor for water treatment, detergents, textiles and cosmetics. CoA and SDS with every lot.
Description
HEDP Product Overview
HEDP (C2H8O7P2) is supplied as a clear, colorless to pale yellow 60% aqueous solution or a white crystalline powder. It binds calcium, magnesium and iron ions and remains stable at high temperatures and pH.
In addition, water treatment users dose it in cooling towers, boilers and reverse osmosis systems to prevent scale and corrosion. Similarly, detergent and cleaning producers use it as a stabilizer for peroxide bleach and a chelating agent, textile processors use it in dyeing and bleaching, and cosmetic producers use it (INCI: etidronic acid) to stabilize soaps and peroxide products.
Notably, related chelating agents in our range include EDTA, Sodium Gluconate and Disodium Edta.
Key Applications of HEDP
Typical uses include, for example:
🏭 Cooling Towers
Scale and corrosion inhibitor.
🧺 Detergents
Peroxide stabilizer.
🧵 Textiles
Dyeing and bleaching.
🧼 Cosmetics
Soap stabilizer.
HEDP Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | HEDP (Etidronic Acid) |
| CAS Number | 2809-21-4 |
| Molecular Formula / Weight | C2H8O7P2 / 206.03 g/mol |
| Forms | 60% solution and 90% powder |
| Appearance | Clear liquid or white powder |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Harmful if swallowed and causes serious eye damage; solutions are strongly acidic. Avoid contact, and also wear gloves and eye protection. Store in tightly closed containers. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Frequently Asked Questions
Why is HEDP used in cooling water?
Because it prevents calcium scale and corrosion even at high temperatures.
Which forms do you supply?
60% solution and 90% powder.
How can I get a price and documents?
We supply flexible quantities, from small orders to large volumes, so you do not need to meet the high minimum orders of large producers. Please contact us with your required volume, and we will send a quotation together with the CoA and SDS.
