Search results
Results From The WOW.Com Content Network
Besides 209 Bi, the most stable bismuth radioisotopes are 210m Bi with a half-life of 3.04 million years, 208 Bi with a half-life of 368,000 years and 207 Bi, with a half-life of 32.9 years, none of which occurs in nature. All other isotopes have half-lives under 1 year, most under a day.
18, which is prepared by reducing a mixture of hafnium(IV) chloride and bismuth chloride with elemental bismuth, having the structure [Bi +] [Bi 5+ 9] [HfCl 2− 6] 3. [5]: 50 Other polyatomic bismuth cations are also known, such as Bi 2+ 8, found in Bi 8 (AlCl 4) 2. [11] There is a true monoiodide, BiI, which contains chains of Bi 4 I 4 units.
Many automatic sprinklers, electric fuses, and safety devices in fire detection and suppression systems contain the eutectic In 19.1-Cd 5.3-Pb 22.6-Sn 8.3-Bi 44.7 alloy that melts at 47 °C (117 °F) [19] This is a convenient temperature since it is unlikely to be exceeded in normal living conditions. Low-melting alloys, such as Bi-Cd-Pb-Sn ...
Since bismuth(III) iodide is insoluble in water, an aqueous solution can be tested for the presence of Bi 3+ ions by adding a source of iodide such as potassium iodide. A black precipitate of bismuth(III) iodide indicates a positive test. [10] Bismuth(III) iodide forms iodobismuth(III) anions when heated with halide donors: [11] 2 NaI + BiI 3 ...
Crystal structure determination of bismuth subgallate revealed it is a coordination polymer with the formula [Bi(C 6 H 2 (O) 3 COOH)(H 2 O)] n 2nH 2 O. [5] The phenolate oxygen atoms of the gallate ligand chelate to bismuth cations and form chains. The material is nanoporous and the open-channels can be filled with small gas molecules such as ...
The FIBA 3x3 U18 World Cup is an 3x3 under-18 basketball tournament run by the International Basketball Federation (FIBA) since 2011. The tournament was known as the FIBA 3x3 U18 World Championships until the 2016 edition.
The structure of bismuth oxychloride can be thought of as consisting of layers of Cl −, Bi 3+ and O 2− ions (in the image Bi = grey, O = red, Cl = green). These ions are ordered as Cl–Bi–O–Bi–Cl–Cl–Bi–O–Bi–Cl, i.e., with alternating anions (Cl −, O 2−) and cations (Bi 3+). The layered structure gives rise to the ...
Bismuth hydrate is a component used in milk of bismuth [3] which is used in gastrointestinal disorders as a protective agent. [4] Aqueous ammonia reacts with bismuth(III) ions to precipitate white bismuth hydroxide. [5] It is used as an absorbent, and in the hydrolysis of ribonucleic acid.