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Acetone (2-propanone or dimethyl ketone) is an organic compound with the formula (CH 3) 2 CO. [22] It is the simplest and smallest ketone (R−C(=O)−R').It is a colorless, highly volatile, and flammable liquid with a characteristic pungent odour, very reminiscent of the smell of pear drops.
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
26.2 dyn/cm at 0° 23.7 dyn/cm at 20 °C ... Vapor pressure of acetone based on formula, = + from ...
2. Ways to polish a surface (using a little bit of force). 3. These words are related to "betting." 4. The words in this category precede a seven-letter plural noun (hint: the noun usually refers ...
The Edna May Gold Mine is a gold mine located at Westonia, Western Australia. It is operated by Ramelius Resources. [2] The mine, planned to be in full production by the end of July 2010, is scheduled to produce in excess of 100,000 ounces of gold per annum. [3] Historically, the Westonia region has produced 600,000 ounces of gold between 1911 ...
The enzyme acetylacetone dioxygenase cleaves a central carbon-carbon bond of acetylacetone, producing acetate and 2-oxopropanal. The enzyme is iron(II)-dependent, but it has been proven to bind to zinc as well. Acetylacetone degradation has been characterized in the bacterium Acinetobacter johnsonii. [13] CH 3 C(O)CH 2 C(O)CH 3 + O 2 → CH 3 ...
The chronic toxicity of hexane is attributed to hexane-2,5-dione. The symptoms are tingling and cramps in the arms and legs, followed by general muscular weakness. In severe cases, atrophy of the skeletal muscles is observed, along with a loss of coordination and vision problems. [2] Similar symptoms are observed in animal models.
Trithioacetone was first made in 1889 by Baumann and Fromm, by reaction of hydrogen sulfide with acetone. [6] In the presence of an acidified ZnCl 2 catalyst at 25 °C, one obtains a product that is 60–70% trithioacetone, 30–40% of 2,2-propanedithiol, and small amounts of two isomeric impurities, 3,3,5,5,6,6-hexamethyl-1,2,4-trithiane and 4-mercapto-2,2,4,6,6-pentamethyl-1,3-dithiane. [6]