CAS Number: 121‑44‑8
Synonyms: Triethylamine; N,N‑Diethylethanamine; TEA
Chemical Formula: C₆H₁₅N
Molecular Weight: 101.19 g/mol
Product Introduction
A clear, colorless liquid with a strong amine‑like odor. A strong, sterically bulky tertiary amine (≥ 99% purity), used widely as a base, catalyst, and pH adjuster—particularly in organic synthesis, resin production, analytical buffer, and coatings chemistry.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odor | Strong fishy/ammoniacal |
| Density @ 20 °C | ~0.725–0.73 g/mL |
| Melting Point | ~–115 °C |
| Boiling Point | ~89–90 °C |
| Refractive Index (n₂₀ᴅ) | ~1.399–1.401 |
| Vapor Pressure @ 20 °C | ~72 hPa (54 mm Hg) |
| Water Solubility | ~112 g/L @ 20 °C |
| Flash Point | ~–9 to –6 °C |
| pKₐ of Conjugate Acid | ~10.75 |
| Log P | ~1.65 |
Flammable and corrosive; irritating to skin, eyes, respiratory tract. GHS: H225, H302, H314, H331, H335. LD₅₀ (rat, oral) ~460 mg/kg. NFPA: Health 2, Fire 4, Reactivity 0. Store under inert gas in cool, ventilated area; use full PPE and gas monitoring.
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