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The MTBE controversy concerns methyl tert-butyl ether (MTBE), a gasoline additive that replaced tetraethyllead. MTBE is an oxygenate and raises gasoline's octane number . Its use declined in the United States in response to environmental and health concerns.
Although an ether, MTBE is a poor Lewis base and does not support formation of Grignard reagents. It is also unstable toward strong acids. It reacts dangerously with bromine. [25] MTBE forms azeotropes with water (52.6 °C; 96.5% MTBE) [26] and methanol (51.3 °C; 68.6% MTBE). [27] The solubility of water in MTBE is reported to be 1.5 g/100g at ...
Get the Florida Keys, FL local weather forecast by the hour and the next 10 days.
Heat indices of 105 to 110 degrees are forecast across Miami areas, Fort Lauderdale and the Keys, and most of the state on Saturday afternoon with the advisory lasting until 8 p.m. in South ...
It's going to be a wet week for Florida, even without a tropical storm. Expect heavy rain with a chance of severe thunderstorms and frequent lightning
A hurricane local statement (HLS) [1] is a weather statement produced for the public by the local Weather Forecast Offices of the National Weather Service in the U.S. for areas affected or forecast to be affected by a tropical storm or hurricane that provides an overview of the storm's local effects, including expected weather conditions, evacuation decisions made by local officials, and ...
A drought in western North America began in 2020 and continued into 2021. A 20-month period from January 2020 to August 2021 recorded the least rainfall since 1895. [25] Lake Powell hit record low levels in July 2021, [26] [27] and due to Lake Mead dropping so low, water restrictions were imposed. [28] By mid-August 2021, Iowa was facing ...
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