Molekula
Etidronic acid monohydrate 50% aqueous solution (w/w)
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
Etidronic acid monohydrate 50% aqueous solution is a chelating agent used in industrial water treatment, scale inhibition, and medical applications such as bone metabolism research. It is a clear, colorless to pale yellow liquid with a molecular weight of 224.04 g/mol, CAS number 25211-86-3, and molecular formula C2H8O7P2 · H2O. Stored at ambient temperatures, it is classified as dangerous. Molekula supplies Etidronic acid monohydrate 50% aqueous 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.
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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
| Property | Value |
|---|---|
| Appearance | Colourless to yellow liquid |
| Assay | 45-55% (Mass Balance) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90032509 |
| CAS Number | 25211-86-3 |
| IUPAC Name | (1-hydroxy-1-phosphonoethyl)phosphonic acid;hydrate |
| Molecular Formula | C2H8O7P2 · H2O |
| Molecular Weight | 224.04 |
| Exact Mass | 223.9851 |
| SMILES | CC(O)(P(=O)(O)O)P(=O)(O)O.O |
| InChIKey | KKNZXUHBWLPUFN-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H8O7P2.H2O/c1-2(3,10(4,5)6)11(7,8)9;/h3H,1H3,(H2,4,5,6)(H2,7,8,9);1H2 |
| PubChem CID | 12521030 |
| REACH Code | Y110 |
| HTS Code | 2931.49.0080 |
| Tariff Code | 2931493000 |
Safety & GHS
-
Corrosive
GHS05
-
Serious Health Hazard
GHS08
Hazard statements
- H318 Causes serious eye damage
- H361 Suspected of damaging fertility or the unborn child
- H370 Causes damage to organs
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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-hydroxy-1-phosphonoethyl)phosphonic acid;hydrate
- (1-Hydroxyethane-1,1-diyl)bis(phosphonic acid) hydrate
- (1-Hydroxyethylidene)bisphosphonic acid monohydrate
- 1-Hydroxyethylidene-1,1-diphosphonic acid monohydrate
- Ethane-1-hydroxy-1,1-diphosphonic acid monohydrate
- Etidronate hydrate
- ETIDRONIC ACID MONOHYDRATE (USP-RS)
- Hydroxyethylidenebisphosphonic acid monohydrate
- Phosphonic acid, (1-hydroxyethylidene)bis-, monohydrate
Frequently asked questions
What is etidronic acid monohydrate 50% aqueous solution used for?
It is primarily used as a chelating agent in industrial water treatment and scale inhibition, and in medical applications for bone metabolism disorders.
What is the chemical formula and molecular weight?
The formula is C2H8O7P2 · H2O with a molecular weight of 224.04 g/mol.
How should etidronic acid monohydrate 50% solution be stored?
Store at ambient temperature, away from incompatible materials, and in a well-ventilated area.
What grade is available for this product?
This product is available as a 50% aqueous solution (w/w) for industrial and research use.
Can Molekula supply this product in bulk?
Yes, Molekula can supply etidronic acid monohydrate 50% solution in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.