Triethyl phosphate
Also known as: TEP, Ethyl phosphate, Phosphoric acid triethyl ester, Triethylfosfat, Triethylphosphate, Phosphoric ether, AURORA KA-1638
Triethyl phosphate (CAS 78-40-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H15O4P and a molecular weight of 182.155 g/mol. Key properties include a melting point of -56 °C, a boiling point of 219.3±8.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 115.6±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 78-40-0
- Jingsj CID
- J-18902-6
- Molecular Formula
- C6H15O4P
- Molecular Weight
- 182.155 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -56 °C |
|---|---|
| Boiling Point | 219.3±8.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 115.6±0.0 °C |
| Exact Mass | 182.070801 |
| PSA | 54.57000 |
| LogP | 1.08 |
| Additional Property | 6.28 (vs air) |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.406 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 29190090 |
|---|
Frequently Asked Questions
What is the CAS number of Triethyl phosphate?
The CAS number of Triethyl phosphate is 78-40-0.
What are the molecular formula and molecular weight of Triethyl phosphate?
Triethyl phosphate has molecular formula C6H15O4P and molecular weight 182.155 g/mol.
Is Triethyl phosphate hazardous?
Triethyl phosphate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Triethyl phosphate?
For Triethyl phosphate, Upstream Products: Ethanol, Diethyl phosphite, Triethyl phosphorothioate; Downstream Products: Triethyl 2-phosphonopropionate, Diethyl (3-methoxybenzyl)phosphonate, Diethyl (4-methylbenzyl)phosphonate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triethyl phosphate (CAS 78-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18902-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.