Substance profile
N-Ethylaniline
N-Ethylaniline is a colorless liquid with an aniline-like odor.
01 · Identification
What N-Ethylaniline is
N-Ethylaniline is a colorless liquid with an aniline-like odor. Its molecular formula is C8H11N and its molecular weight is 121.18 g/mol. It boils at 205 °C, melts at -63.5 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 2nd degree.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H331 | Toxic if inhaled. |
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
Precautionary statements: P260, P270, P271, P280, P301, P302, P304, P310, P314, P330, P352
03 · Physical and chemical properties
N-Ethylaniline properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 204.5 °C (400.1 °F) | HSDB | |
| 204.72 °C (400.5 °F) | at 760 mmHg | CAMEO | |
| 205 °C (401 °F) | ICSC | ||
| Melting point | -63.5 °C (-82.3 °F) | HSDB | |
| -63 °C (-81.4 °F) | ICSC | ||
| Density | 0.96 g/cm³ | ICSC | |
| 0.9625 g/cm³ | at 20 °C | HSDB | |
| 0.958 g/cm³ | at 25 °C | CAMEO | |
| Solubility | Insol in water; miscible with alcohol, ether, and many other organic solvents | HSDB | |
| Very sol in acetone; sol in organic solvents | HSDB | ||
| In water, 2.41X10+3 mg/l @ 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 3.0002 mmHg | at 20 °C | ICSC |
| 0.204 mmHg | at 25 °C | HSDB | |
| 1 mmHg | at 38.5 °C | CAMEO | |
| Flash point | 85 °C (185 °F) | HSDB | |
| Autoignition temperature | 480 °C (896 °F) | ICSC | |
| Lower explosive limit (LEL) | 1.6 % by volume | ICSC | |
| Upper explosive limit (UEL) | 9.5 % by volume | ICSC | |
| Vapor density | 4.2 (air = 1) | HSDB | |
| 4.18 (air = 1) | CAMEO | ||
| Critical temperature and pressure | 425.4 °C (797.7 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling N-Ethylaniline
Storage conditions
Store away from heat, oxidizing materials, and sunlight in a dry, well-ventiliated location. Outside or detached storage is preferred.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
N-ethylaniline is hypergolic with red fuming nitric acid.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
N-ETHYLANILINE may react violently with nitric acid. May react with strong oxidizing agents. (NTP, 1992). Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check N-Ethylaniline in the storage compatibility matrix →