antimony
/ˈantɪməni
/noun [mass noun]
The chemical element of atomic number 51, a brittle silvery-white semimetal. (Symbol: Sb) There are seven metalloids: boron, silicon, germanium, arsenic, selenium, antimony, and tellurium....
- Beryllium, calcium, silver and antimony have no appreciable effect on mechanical properties.
- The most important of these are antimony, phosphorus, tin, and arsenic, with manganese and silicon having a small effect.
Antimony was known from ancient times; the naturally occurring black sulphide was used as the cosmetic kohl. The element is used in alloys, usually with lead, such as pewter, type metal, and Britannia metal.
Derivatives
antimonial
/ adjective ...- These batteries consist of a series of grid plates made from either cast or wrought calcium lead or antimonial lead that is pasted with a mixture of lead oxides and immersed in sulfuric acid.
- The antimonial agent used in the United States is sodium stibogluconate (Pentostam).
- Concerns about treatment failure for visceral leishmaniasis are exacerbated by geographical variations in antimonial treatment regimens, severity of disease, and sensitivity of Leishmania species.
antimonic
/ adjective ...- However, antimonic acid available by the conventional method is in the form of particulates.
- Proton conductive antimonic acids, fine powders and films were prepared by soft chemical processing such as ion-exchanged reaction, sol-gel processing and autoclave reaction.
- The applicability of granular cubic antimonic acid (C-SbA) as column packing material in chromatographic lithium isotope separation was investigated.
antimonious
/ adjective ...- The 5-foot draft wing keel is antimonious lead and fastened to the structural grid network with stainless bolts.
- The stannic and antimonious heat stabilizers which are very widely used at the present time, because of their efficiency, are very strongly recommended for a preferred embodiment of the invention.
- Once motor vehicle wheel weights are no longer made of antimonious lead, the lead hazard in urban streets will subside.
Origin
Late Middle English (denoting stibnite, the most common ore of the metal): from medieval Latin antimonium, of unknown origin. The current sense dates from the early 19th century.