2-Ethylnaphthalene
- CAS NO.：939-27-5
- Empirical Formula: C12H12
- Molecular Weight: 156.22
- MDL number: MFCD00004127
- EINECS: 213-360-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:52:00
What is 2-Ethylnaphthalene?
Chemical properties
colourless liquid
The Uses of 2-Ethylnaphthalene
2-Ethylnaphthalene is a commonly used organic substance in the laboratory for hydrodealkylation reactions, energy transfer studies under varying concentrations of donor conditions and its vapour pressure in phase equilibrium cells.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as C2-ETHYLNAPHTHALENE, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.
Properties of 2-Ethylnaphthalene
| Melting point: | -70 °C (lit.) |
| Boiling point: | 251-252 °C (lit.) |
| Density | 0.992 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 104 °C |
| storage temp. | Sealed in dry,Room Temperature |
| form | clear liquid |
| color | Colorless to Light yellow |
| Water Solubility | 8mg/L(25 ºC) |
| BRN | 1903545 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 939-27-5(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Ethylnaphthalene (939-27-5) |
Safety information for 2-Ethylnaphthalene
| Signal word | Danger |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H361:Reproductive toxicity H372:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P312:Call a POISON CENTER or doctor/physician if you feel unwell. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
Computed Descriptors for 2-Ethylnaphthalene
| InChIKey | RJTJVVYSTUQWNI-UHFFFAOYSA-N |
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