Molekula
HEDP 60% solution
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
HEDP (1-Hydroxyethylidene-1,1-diphosphonic acid) is a highly effective organophosphonic acid used as a scale inhibitor, chelating agent, and corrosion inhibitor in industrial water treatment, detergents, and metal processing. It prevents calcium and magnesium scale buildup in cooling systems, boilers, and pipelines while also sequestering metal ions to enhance performance in cleaning formulations. This 60% aqueous solution has a CAS number of 2809-21-4, molecular formula CH3C(OH)[PO(OH)2]2, and a molecular weight of 206.03. It is stable at ambient storage conditions but requires careful handling due to its hazardous classification (Signal Word: Danger). Molekula supplies HEDP 60% solution from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90034262 |
| CAS Number | 2809-21-4 |
| IUPAC Name | (1-hydroxy-1-phosphonoethyl)phosphonic acid |
| EC Number | 220-552-8 |
| Molecular Formula | CH3C(OH)[PO(OH)2]2 |
| Molecular Weight | 206.03 |
| Exact Mass | 205.9745 |
| SMILES | CC(O)(P(=O)(O)O)P(=O)(O)O |
| InChIKey | DBVJJBKOTRCVKF-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H8O7P2/c1-2(3,10(4,5)6)11(7,8)9/h3H,1H3,(H2,4,5,6)(H2,7,8,9) |
| PubChem CID | 3305 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29314900 |
| Tariff Code | 2931498090 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H290 May be corrosive to metals
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H361 Suspected of damaging fertility or the unborn child
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-Hydroxyethylidene-1,1-diphosphonic acid
- Acetodiphosphonic acid
- Acide etidronique
- Acido etidronico
- EHDP
- Etidronic acid
- Etidronsaeure
- Hydroxyethanediphosphonic acid
- Oxyethylidenediphosphonic acid
- Turpinal SL
Frequently asked questions
What is HEDP (1-Hydroxyethylidene-1,1-diphosphonic acid) 60% solution commonly used for?
HEDP is primarily used as a scale inhibitor, corrosion inhibitor, and chelating agent in water treatment, industrial cleaning, and metal processing applications.
What is the chemical formula and molecular weight of HEDP?
The chemical formula is CH₃C(OH)[PO(OH)₂]₂, and the molecular weight is 206.03 g/mol (for the anhydrous acid).
How should HEDP 60% solution be stored?
Store at ambient temperature in a cool, dry place, away from incompatible substances. Ensure proper ventilation and use approved containers.
What grade or purity is available for HEDP 60% solution?
Molekula supplies technical-grade HEDP 60% solution, meeting industrial standards for water treatment and chemical processing applications.
Can Molekula supply HEDP 60% solution in bulk quantities?
Yes, we offer bulk packaging options (e.g., IBCs, drums) for large-scale industrial customers—please contact us for specific availability.
What documentation is provided with an order of HEDP 60% solution?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.