Product Description
2-Ethylhexyl Nitrate (2-EHN) is a widely used diesel fuel additive that functions as a cetane improver. It is primarily added to diesel fuel to increase the cetane number, helping shorten the ignition delay period and promote faster, more efficient combustion.
By improving ignition characteristics, 2-EHN can contribute to smoother engine operation, enhanced combustion performance, and more consistent engine responsiveness. Depending on the base fuel, engine design, operating conditions, and dosage, its use may also support improved fuel-use efficiency.
The influence of 2-EHN on exhaust emissions depends on the engine technology and operating conditions. Under appropriate conditions, it may help optimize combustion and influence emissions such as particulate matter (PM), carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx), although the effects vary with the specific application.
As a proven cetane improver, 2-EHN is widely used in diesel fuel formulations to help meet ignition-performance requirements and support the development of high-performance diesel additive packages.
Product Parameters
| Product Name: | 2-Ethylhexyl nitrate |
| Synonyms: | ethylhexylnitrate;Nitricacid,2-ethylhexylester;salpetersaure-(2-ethylhexyl)ester;2-Ethylhexylnitrat;OCTYL NITRATE (2-ETHYL HEXYL NITRATE);2-ETHYLHEXYL NITRATE;2-ETHYL-HEXYL-1-NITRATE;Cetane number improver |
| CAS: | 27247-96-7 |
| MF: | C8H17NO3 |
| MW: | 175.23 |
| EINECS: | 248-363-6 |
| Product Categories: | Nitrogen Compounds;Organic Building Blocks;Organic Nitrates/Nitrites |
| Mol File: | 27247-96-7.mol |
2-Ethylhexyl nitrate Chemical Properties
| Boiling point | 306.53°C (rough estimate) |
| Density | 0.963 g/mL at 25 °C(lit.) |
| Vapor pressure | 27Pa at 20℃ |
| Refractive index | n20/D 1.432(lit.) |
| Fp | 168 °F |
| Odor | Fruity, pungent, ester, characteristic |
| Water Solubility | 12.5mg/L at 20℃ |
| Stability | Stability Heating may cause an explosion. Contact with combustible material may cause fire or explosion. |
| InChIKey | NKRVGWFEFKCZAP-UHFFFAOYSA-N |
| LogP | 5.24 at 40℃ |
| CAS DataBase Reference | 27247-96-7(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Ethylhexyl nitrate (27247-96-7) |
Safety Information
| Hazard Codes | O,Xn,N |
| Risk Statements | 5-8-20/21/22-36/37/38-66-51/53-44 |
| Safety Statements | 15-26-27-36/37/39-61-60-24/25 |
| RIDADR | UN 3139 5.1/PG 2 |
| WGK Germany | 2 |
| RTECS | QU7925000 |
Application Scenarios
Diesel Fuel Cetane Improvement – 2-Ethylhexyl Nitrate is widely used in diesel fuel formulations to increase the cetane number, helping improve ignition quality and shorten the ignition delay period.
Refinery Diesel Blending – It is used in petroleum refineries and fuel blending facilities to adjust the ignition characteristics of diesel fuel, particularly when blending components with relatively low cetane numbers.
Low-Temperature Engine Starting – By promoting faster ignition, 2-EHN can help improve cold-start performance and reduce ignition difficulties in diesel engines operating under low-temperature conditions.
Heavy-Duty and Industrial Diesel Engines – It is incorporated into suitable diesel fuel formulations for commercial vehicles, construction machinery, agricultural equipment, and industrial diesel engines where reliable ignition performance is important.
Diesel Fuel Additive Formulation – 2-EHN serves as an active ingredient in commercial cetane improver concentrates and multifunctional diesel additive packages designed to enhance fuel ignition quality and combustion performance.
Diesel Fuel Quality Optimization – It helps fuel producers and suppliers adjust diesel ignition properties to meet specified cetane-number targets. The required dosage depends on the base fuel composition, initial cetane number, and applicable fuel specifications.
