Search results
Results from the WOW.Com Content Network
Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
Founded in 1923, [4] [5] Ethyl Corp was formed by General Motors and Standard Oil of New Jersey ().General Motors had the "use patent" for tetraethyllead (TEL) as an antiknock fuel additive, based on the work of Thomas Midgley Jr., Charles Kettering, and later Charles Allen Thomas, [6]: 340–41 and Esso had the patent for the manufacture of TEL.
Midgley went as far as pouring Ethyl over his hands and inhaling it during that 1924 news conference in an attempt to quench fears. But in reality, he was also getting poisoned.
2 pb(c 2 h 5) 4 + 27 o 2 → 16 co 2 + 20 h 2 o + 2 pbo Pb and PbO would quickly over-accumulate and foul an engine. For this reason, 1,2-dichloroethane and 1,2-dibromoethane were also added to gasoline as lead scavengers—these agents form volatile lead(II) chloride and lead(II) bromide , respectively, which flush the lead from the engine and ...
The death of Franz Reichelt (d. 1912), who jumped off the Eiffel Tower expecting his contraption to act as a parachute. Ismail ibn Hammad al-Jawhari (died c. 1003–1010), a Kazakh Turkic scholar from Farab, attempted to fly using two wooden wings and a rope. He leapt from the roof of a mosque in Nishapur and fell to his death. [5]
Thomas Midgley, 76, of Watson Street, Wilkes-Barre Township, was sentenced by Lupas to four-to-23 months at the county correctional facility on six counts of child pornography. Midgley pled guilty ...
The last time an inmate was put to death using any form of lethal gas was in 1999, according to the Death Penalty Information Center. The Supreme Court in May last year rejected an earlier attempt ...
In his capacity as an engineer with General Motors, Thomas Midgley Jr. experimented with a myriad of different compounds, which he added to petrol in an attempt to prevent engines from knocking. Eventually, he discovered one compound that worked brilliantly: tetraethyllead .