All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic
sulphur (symbol S) Nonmetallic element in group VI of the periodic table, known since pre-history (the biblical brimstone). Essential to animal and plant life, it may occur naturally as a free element or in sulphide minerals such as galena and iron pyrites, or in sulphate minerals such as gypsum. The main commercial source is native (free) sulphur, extracted by the Frasch process. It is used in the vulcanization of rubber and in the manufacture of drugs, matches, dyes, fungicides, insecticides, and fertilizers. Properties: at.no. 16; r.a.m. 32.064; r.d. 2.07; m.p. 112.8°C (235°F); b.p. 444.7°C (832.5°F). Most common isotope S32 (95.1%).
More From encyclopedia.com
Ethanal , ethanal (acetaldehyde) Colourless volatile flammable liquid (CH3CHO) manufactured by catalytic oxidation of ethene or ethanol, or catalytic hydration… Periodic Table Of The Elements Tin , tin (symbol Sn) Metalloid element of group IV of the periodic table, known from ancient times. Its chief ore is cassiterite (an oxide). Soft, malleab… Actinium Series , Actinium (revised) Note: This article, originally published in 1998, was updated in 2006 for the eBook edition. Overview Actinium is the third elemen… Celestite , celestite Mineral SrSO4 which may form a solid solution series with barite; sp. gr. 3.9–4.0; hardness 3.0–3.5; orthorhombic; faint blue to colourless… Hassium , hassium (hăs´ēəm, häs´–), artificially produced radioactive chemical element; symbol Hs; at. no. 108; mass number of most stable isotope 277; m.p., b… Periodic Table Of The Elements Yttrium , yttrium (symbol Y) Silver-grey, metallic element in group III of the periodic table. First isolated in 1828 by German chemist Friedrich Wöhler, it is…
You Might Also Like