CAS Number:1122‑51‑0
Synonyms:Triethoxymethane; Ethyl orthoformate; Orthoformic acid triethyl ester
General Formula:HC(OC₂H₅)₃
Product Introduction
A clear, colorless, volatile organic liquid with a pungent, ester-like odor. A moisture-sensitive orthoester of formic acid, TEOF is widely used as a reagent in organic synthesis—especially in formylation and acetalization—and as a solvent/fine chemical intermediate.
| Property | Value |
|---|---|
| Appearance | Clear, colorless liquid |
| Odor | Pungent, camphor/herbaceous |
| Density | ~0.891 g/mL @ 20 °C |
| Melting Point | –76 °C |
| Boiling Point | ~145–146 °C |
| Flash Point | ~35 °C closed cup (86 °F) |
| Vapor Density | ~5.1× air |
| Vapor Pressure | ~2.9 mmHg @ 20 °C |
| Solubility | Slight in water (~1.35 g/L); miscible in alcohols/ethers |
| Stability | Sensitive to hydrolysis; store under inert dry conditions |
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