... refers to compounds added to gasoline to prevent knocking in gasoline engines. Organometallic compounds of lead, iron, manganese, etc. are known to have knocking prevention effects, but the most well-known are alkyl lead compounds such as tetraethyl lead (C 2 H 5 ) 4 Pb, tetramethyl lead (CH 3 ) 4 Pb, and ethylmethyl lead. When small amounts of these are added to gasoline along with auxiliary agents such as ethylene bromide and ethylene chloride, the octane number of the gasoline increases by 5 to 15. *Some of the terminology that refers to "alkyl lead compounds" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ガソリンエンジンのノッキングを防止するために,ガソリンに添加される化合物をいう。鉛,鉄,マンガンなどの有機金属化合物がノッキング防止作用をもつことが知られているが,最も著名なのは四エチル鉛(C2H5)4Pb,四メチル鉛(CH3)4Pb,エチルメチル鉛などのアルキル鉛化合物である。これらを臭化エチレン,塩化エチレンなどの助剤とともにガソリンに微量添加すると,ガソリンのオクタン価が5~15上昇する。… ※「アルキル鉛化合物」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
<<: Alkyl urea - Arukiru Nyouso
>>: Sodium alkyl sulfonate - Arukiru Honsan Natoriumu
Native trees are plants that grow naturally or ha...
…accessory. It is included in the broad definitio...
… [Eiichi Asayama]. … *Some of the terminology th...
…He became a member of the National Assembly in 1...
Physicist. The only son of Nagaoka Jisaburo (1839...
The morning glory market is held on the festival ...
...Since the establishment of the Reagan administ...
In the Islamic world, a religious order was create...
Prayer, as a basic element of religious phenomena...
During the Middle Pleistocene, the Early Paleolith...
Cities built on hills primarily to defend against ...
…[Masami Hayashi]. . … *Some of the terminology t...
…A slang term for a particular dry, coarse-textur...
…This state in which a complete fluid film is for...
…There are about 25 known Neolithic sites in the ...