n. (Elements & Compounds) a. an allotropic nonmetallic element, occurring free in volcanic regions and in combined state in gypsum, pyrite, and galena. Antoine Lavoisier recognized it as an element in 1777, although it was considered by some to be a compound of hydrogen and oxygen; its elemental nature was established by the French chemists Joseph Gay-Lussac and Louis Thenard. Get exclusive access to content from our 1768 First Edition with your subscription. –, The International Maritime Organisation (IMO) agreed on Thursday to set a cap on the sulphur content of marine fuels, in a move that campaigners predict will save millions of lives in the coming decades. You can remember to reserve sulphur for use with predominantly British audiences by enlisting the help of a mnemonic, or memory tool. A chemical element (symbol S) with an atomic number of 16. Prehistoric humans used sulfur as a pigment for cave painting; one of the first recorded instances of the art of medication is in the use of sulfur as a tonic.
The name itself probably found its way into Latin from the language of the Oscans, an ancient people who inhabited the region including Vesuvius, where sulfur deposits are widespread.
The name of one element on the periodic table, corresponding to the atomic number 16, is spelled two different ways. You may be familiar with the chemical symbols for hydrogen and oxygen, but can you match such lower-profile elements as gadolinium and erbium with their corresponding symbols?
an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions). In sulfur, allotropy arises from two sources: (1) the different modes of bonding atoms into a single molecule and (2) packing of polyatomic sulfur molecules into different crystalline and amorphous forms. But what always stunned me in particular about the Radikon wines were not only their beauty but also their rock-solid stability, even though Mr. Radikon for years has been working without sulfur dioxide, the stabilizing additive used as a safety net in almost all fine wines around the world. Did some of these authors spend too much time on science projects in school, and not enough time learning how to spell? Sulfur is the tenth most common element by mass in the universe, and the fifth most common on Earth. Elemental sulfur is a bright yellow crystalline solid at room temperature. the material of which hellfire and lightning were formerly believed to consist.
It is nonmetallic, usually yellow in color, and occurs naturally throughout the world.
At temperatures above 96 °C (204.8 °F), the α-allotrope changes into the β-allotrope. The history of sulfur is part of antiquity. A second general allotropic class of sulfur is that of the eight-membered ring molecules, three crystalline forms of which have been well characterized. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8.
The spelling distinction extends to derivative words such as sulfuric / sulphuric, sulfate / sulphate, and sulfide / sulphide.
–. Note: only a member of this blog may post a comment. Was well known in China since 600 BC. This is a PDF-only article.
Only eight of the 30 seem to be unique; five contain rings of sulfur atoms and the others contain chains. Historically sulphur has been the typical form in British English, while sulfur is usual in American English, having emerged as a variant spelling among chemists in the 1920s. Deposits of sulfur in volcanic regions probably originated from gaseous hydrogen sulfide generated below the surface of Earth and transformed into sulfur by reaction with the oxygen in the air.
Some 30 allotropic forms of sulfur have been reported, but some of these probably represent mixtures.
Sulfur is a noun. What is the Difference Between Sulfur and Sulphur? Sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. : a nonmetallic chemical element that is an essential element for all life, resembles oxygen in chemical properties, and is used especially in the form of sulfuric acid to extract phosphates from ores — see Chemical Elements Table. Our latest podcast episode features popular TED speaker Mara Mintzer.
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