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Ferrocene and its derivatives are antiknock agents added to the petrol used in motor vehicles, and are safer than the now-banned tetraethyllead. [18] Petrol additive solutions containing ferrocene can be added to unleaded petrol to enable its use in vintage cars designed to run on leaded petrol. [19]
Fuel additives in the United States are regulated under section 211 of the Clean Air Act (as amended in January 1995). The Environmental Protection Agency (EPA) requires the registration of all fuel additives which are commercially distributed for use in highway motor vehicles in the United States, [8] and may require testing and ban harmful additives.
In most countries in Europe, and in Australia and New Zealand, the "headline" octane rating prominently displayed on the pump is the RON, but in Canada, the United States, and Mexico, the headline number is the simple mean or average of the RON and the MON, called the Anti-Knock Index (AKI), and often written on pumps as (R+M)/2.
Motor fuel anti-knock mixture, flammable UN 3484: 8: Hydrazine aqueous solution, flammable with more than 37% hydrazine, by mass UN 3485: 5.1: Calcium hypochlorite, dry, corrosive or Calcium hypochlorite mixture, dry, corrosive with more than 39% available chlorine (8.8% available oxygen) UN 3486: 5.1
In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
SIESTA KEY, Florida (Reuters) -Chris Fiore was supposed to be accepting delivery of new household appliances and furniture, replacing items that were swamped by Hurricane Helene just a few weeks ago.
Highest listing price on eBay: $1,900 Look. At that. HAIR! 1989 brought us a Barbie whose hair reached the edges of the box she came in — an impressive feat, to be sure.
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