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[14] [99] Radioactive isotopes of caesium in radiation devices were used in the medical field to treat certain types of cancer, [100] but emergence of better alternatives and the use of water-soluble caesium chloride in the sources, which could create wide-ranging contamination, gradually put some of these caesium sources out of use.
The symmetry of a carbon dioxide molecule is linear and centrosymmetric at its equilibrium geometry. The length of the carbon–oxygen bond in carbon dioxide is 116.3 pm, noticeably shorter than the roughly 140 pm length of a typical single C–O bond, and shorter than most other C–O multiply bonded functional groups such as carbonyls. [19]
Monosodium glutamate (MSG), also known as sodium glutamate, is a sodium salt of glutamic acid.MSG is found naturally in some foods including tomatoes and cheese in this glutamic acid form.
It is 99.75% enriched by hydrogen atom-fraction; that is, 99.75% of the hydrogen atoms are of the heavy type; however, heavy water in the Gold Book sense need not be so highly enriched. The weight of a heavy water molecule, however, is not very different from that of a normal water molecule, because about 89% of the mass of the molecule comes ...
Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3.A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell.
3.99 g/cm 3 : Critical point: ... NFPA 704 (fire diamond) 2. 0. 0. Although it is toxic in large doses, selenium is an essential micronutrient for animals. In ...
August 24 – 2012 Venezuela Refinery Explosion. An explosion and fire at the Paraguaná Refinery Complex killed 48 and injured 151. September 11 – 2012 Pakistan garment factory fires. A fire in a Karachi garment factory killed at least 312 workers. [89] [90] September 11 – 2012 Pakistan garment factory fires. A fire in a Lahore shoe ...