Molekula
Bis(2-ethylhexyl) hydrogen phosphate
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
Bis(2-ethylhexyl) hydrogen phosphate is an acidic organophosphorus compound primarily used as a solvent extraction reagent for metals such as rare earths, uranium, zinc and cobalt, and also as a corrosion inhibitor in industrial applications, including lubricants and metalworking fluids. It is also employed as an extractant in hydrometallurgy for metal recovery processes. This chemical has a CAS number of 298-07-7, with the molecular formula [CH3(CH2)3CH(C2H5)CH2O]2P(O)OH and a molecular weight of 322.42. It is stored at ambient conditions but carries a signal word of "Danger" due to its hazardous properties. Molekula supplies Bis(2-ethylhexyl) hydrogen phosphate 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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100 g — £54.20 per pack ex VAT · £65.04 inc. VAT
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
| Property | Value |
|---|---|
| Appearance | Clear colourless to pale yellow liquid |
| Assay | ≥ 95.0% |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 181 °C |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Viscous liquid |
| Odour | Odorless |
| Melting Point | -50 °C |
| Boiling Point | 155 °C at 0.02 mmHg |
| Density | 0.975 g/cm³ at 25 °C |
| Water Solubility | 182 mg/L at 25 °C |
| Solubility (other solvents) | Soluble in benzene, hexane, and 4-methyl-2-pentanone |
| Vapour Pressure | 0.00000005 mmHg |
| Refractive Index | 1.4420 |
Source: PubChem CID 9275 (HSDB, ICSC, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 10092482 |
| CAS Number | 298-07-7 |
| IUPAC Name | bis(2-ethylhexyl) hydrogen phosphate |
| EC Number | 206-056-4 |
| Molecular Formula | [CH3(CH2)3CH(C2H5)CH2O]2P(O)OH |
| Molecular Weight | 322.42 |
| Exact Mass | 322.2273 |
| SMILES | CCCCC(CC)COP(=O)(O)OCC(CC)CCCC |
| InChIKey | SEGLCEQVOFDUPX-UHFFFAOYSA-N |
| InChI | InChI=1S/C16H35O4P/c1-5-9-11-15(7-3)13-19-21(17,18)20-14-16(8-4)12-10-6-2/h15-16H,5-14H2,1-4H3,(H,17,18) |
| PubChem CID | 9275 |
| UN Number | UN1902 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2919.90.5010 |
| Tariff Code | 2919900090 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H312 Harmful in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H335 May cause respiratory irritation
- H402 Harmful to aquatic life
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
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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
- 2-Ethyl-1-hexanol hydrogen phosphate
- BIS(2-ETHYLHEXYL) PHOSPHATE
- Bis(2-ethylhexyl)orthophosphoric acid
- Bis(2-ethylhexyl)phosphoric acid
- Di-2-ethylhexyl hydrogen phosphate
- Di(2-ethylhexyl) phosphate
- Di(2-ethylhexyl) phosphoric acid
- Di(2-ethylhexyl)orthophosphoric acid
- Hydrogen bis(2-ethylhexyl) phosphate
- Phosphoric acid, bis(2-ethylhexyl) ester
Frequently asked questions
What is Bis(2-ethylhexyl) hydrogen phosphate commonly used for?
It is primarily used as an extraction reagent in industrial applications, especially solvent extraction of metals such as rare earths, uranium, zinc and cobalt, and also as a lubricant additive.
What is the chemical formula and molecular weight of Bis(2-ethylhexyl) hydrogen phosphate?
The formula is [CH3(CH2)3CH(C2H5)CH2O]2P(O)OH, and the molecular weight is 322.42 g/mol.
How should Bis(2-ethylhexyl) hydrogen phosphate be stored?
Store in a tightly sealed container at ambient temperature, away from sources of ignition and incompatible materials.
What grade or purity is available for this product?
Molekula supplies this product in technical grade, suitable for industrial applications.
Can Molekula supply Bis(2-ethylhexyl) hydrogen phosphate in bulk quantities?
Yes, we can provide bulk quantities—please contact us for specific packaging options and minimum order quantities.
What documentation comes with an order of Bis(2-ethylhexyl) hydrogen phosphate?
Each order includes a Material Safety Data Sheet (MSDS), Certificate of Analysis (CoA), and a product specification sheet.
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.