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In testing, isocetane (2,2,4,4,6,8,8-heptamethylnonane or HMN) replaced 1-methylnaphthalene as the low cetane number reference fuel in 1962 for reasons of better oxidation stability and ease of use in the reference engine. The scale is unchanged, as isocetane's cetane number is measured at 15, referenced to 1-methylnaphthalene and cetane.
CAS Number. 544-76-3 ... Cetane is often used as a shorthand for cetane number, a measure of the combustion of diesel fuel. [9]
CAS Number. 1002-16-0 3D model ... Amyl nitrate is used as an additive in diesel fuel, where it acts as an "ignition improver" (cetane improver) by accelerating the ...
The cetane number is a key property of diesel fuel, as it measures its aptitude to self-ignite in the combustion chamber. [8] The auto ignition temperature of diesel fuel is around 220 °C (428 °F) at atmospheric pressure. Cetane improver additives are used to decrease this temperature and lead to quicker combustion, by increasing the cetane ...
Isocetane (2,2,4,4,6,8,8-heptamethylnonane) is a highly branched alkane used as a reference in determining the cetane number of diesel. It has a cetane number of 15. [2] Isocetane replaced 1-methylnaphthalene in 1962 as the lower reference for cetane number (1-methylnaphthalene has cetane number zero) owing to the oxidation instability and ...
CAS Number. 95-63-6 ... In automobile fuel it is a minor additive, with its share in US gasoline rising from 0.03–0.5% in early 1990s [14] to 1.1–2.6% in 2011. [15]
The principal measure of diesel fuel quality is its cetane number. A cetane number is a measure of the delay of ignition of a diesel fuel. [32] A higher cetane number indicates that the fuel ignites more readily when sprayed into hot compressed air. [32] European (EN 590 standard) road diesel has a minimum cetane number of 51.
CAS Number. 509-14-8 ... It has also found use as an additive to diesel fuel to increase the cetane number. [7] Preparation