3/31/2023 0 Comments Antimony iii nitrate formulaThe dominant cations species in the pH range unique to natural environments is Sb(OH)3 and Sb(OH)6¯ for trivalent antimony and pentavalent antimony respectively. Simple cations of antimony (Sb+3 and Sb+5) do not occur in solutions but in hydrolyzed form such as Sb(OH)6¯ (Randich et al., 2002). In the electrochemical series, antimony is positioned after hydrogen, meaning that it cannot displace ions of hydrogen from dilute acids. It is also a poor conductor of electricity and heat. Antimony metal is generally stable under normal conditions and does not react with air or water. The chemical and physical properties of antimony are summarized in Table 1 below. Two of these radioactive isotopes (antimony-124 and antimony-125) are used commercially as tracers (Emsley, 2011). These isotopes give off some form of radiation. In addition, about twenty different radioactive isotopes of antimony are known. Isotopy occurs when two or more forms of an element differ from each other in terms of mass numbers. Antimony occurs in two natural isotopes, antimony-121 and antimony-123. The first modern detailed information about antimony was published in the 18th century when French chemist Nicolas Lemery wrote the Treatise on Antimony (Krebs, 2006). Arab alchemist Abu Musa Jabir Ibn Hayyan (721–815 CE) probably first called it antimony - ‘anti’ meaning not and ‘monos’ meaning alone because the element does not occur alone in nature (Shotyk, Krachler & Chen, 2006).Īlthough it was used for a long time, it was not until the 17th century that antimony was recognized as a chemical element. Antimony is believed to have been named by Roman scholar Pliny (23–79 CE) who called it stibium. The chemical name for antimony (stibium) was taken from the ancient Egyptian name for the element. The stibic stone was also used in making glassware and glazes for beads (Randich et al, 2002). In ancient Egypt, women used the stibic stone (antimony sulfide) as make-up for eyes. Compounds of antimony have been used by human beings since ancient times. As a metalloid, it exhibits characteristics of both metals and non-metals. Its surface is scaly, and is brittle and hard like a non-metal. It is also alloyed with lead to make the latter more durable.Īntimony is a shiny, silvery white element. Pure refined antimony is used to make semiconductor devices such as infrared detectors and diodes. Antimony is found in trace quantities in nature but is chiefly obtained from mineral ores such as valentinite (Sb2O3) and stibnite (Sb2S3). Existence of antimony has been known since ancient times and was used by ancient alchemists to make other metals, beauty products, and concoctions for healing. Like many elements in its group, antimony is a poor conductor of heat and electricity. The metallic form is silvery, bright, brittle and hard while the non-metallic form is a grayish powder. Because it is semi metallic, it exists as both a metal and non-metal. Chemistry: Properties and Application of Sb-AntimonyĪntimony is a semi metallic chemical element in Period 5 and Group 15 of the Periodic Table of chemical elements.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |