D

Diethylamine

IUPAC: N-ethylethanamine

C4H11N Bases & Alkalis CAS 109-89-7
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Quick Reference
Formula / NotationC4H11N
CAS Number109-89-7
Molecular Weight73.14
Melting Point-58 °F (NTP, 1992)
Boiling Point131.9 °F at 760 mmHg (NTP, 1992)
Density0.708 at 68 °F (USCG, 1999) - Less dense than water; will float
Solubilitygreater than or equal to 100 mg/mL at 63 °F (NTP, 1992)
AppearanceDiethylamine appears as a clear colorless liquid with an ammonia-like odor. Density 5.9 lb / gal. Flash point -15 °F. A respiratory irritant. Corrosive to the eyes and skin. Vapors heavier than ai...
Also Known AsN-ethylethanamine; 109-89-7; N-Ethylethanamine; N,N-Diethylamine; Ethanamine, N-ethyl-; Diaethylamin; Dietilamina; Dwuetyloamina; B035PIS86W; DTXSID6021909
CategoryBases & Alkalis

What is Diethylamine?

Diethylamine is a secondary aliphatic amine where both N-substituents are ethyl. It is a conjugate base of a diethylammonium.

Formula & Notation

C4H11N

IUPAC Name: N-ethylethanamine

Other Names / Synonyms: N-ethylethanamine; 109-89-7; N-Ethylethanamine; N,N-Diethylamine; Ethanamine, N-ethyl-; Diaethylamin; Dietilamina; Dwuetyloamina; B035PIS86W; DTXSID6021909

Properties & Characteristics

Appearance: Diethylamine appears as a clear colorless liquid with an ammonia-like odor. Density 5.9 lb / gal. Flash point -15 °F. A respiratory irritant. Corrosive to the eyes and skin. Vapors heavier than ai.... Molecular formula: C4H11N. Molecular weight: 73.14 g/mol. Boiling point: 131.9 °F at 760 mmHg (NTP, 1992). Melting point: -58 °F (NTP, 1992). Density: 0.708 at 68 °F (USCG, 1999) - Less dense than water; will float. Solubility: greater than or equal to 100 mg/mL at 63 °F (NTP, 1992). Vapor pressure: 195 mmHg at 68 °F ; 200 mmHg at 70 °F (NTP, 1992). LogP: 0.6.

Physical Data

PropertyValue
Melting Point-58 °F (NTP, 1992)
Boiling Point131.9 °F at 760 mmHg (NTP, 1992)
Density0.708 at 68 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight73.14
Solubilitygreater than or equal to 100 mg/mL at 63 °F (NTP, 1992)
AppearanceDiethylamine appears as a clear colorless liquid with an ammonia-like odor. Density 5.9 lb / gal. Flash point -15 °F. A respiratory irritant. Corrosive to the eyes and skin. Vapors heavier than ai...

Uses & Applications

Used in chemical manufacturing, pH adjustment, saponification, water treatment, and as a laboratory reagent.

Safety Information

Corrosive or irritant. Causes burns to skin and eyes. Store away from acids. Wear protective gloves and goggles. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Diethylamine
Formula C4H11N
CAS Number 109-89-7
Molecular Weight 73.14
Category Bases & Alkalis
Synonyms N-ethylethanamine; 109-89-7; N-Ethylethanamine; N,N-Diethylamine; Ethanamine, N-ethyl-; Diaethylamin; Dietilamina; Dwuetyloamina; B035PIS86W; DTXSID6021909

Frequently Asked Questions

Diethylamine is a secondary aliphatic amine where both N-substituents are ethyl. It is a conjugate base of a diethylammonium.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.