Sulphur

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[[Image:Sulphur Lumps 99 98 .jpg|right|148x111px|lumps of sulphur]]Sulphur is&nbsp;represented by&nbsp;the symbol 'S'&nbsp;in the [[periodic table|periodic table]]&nbsp;and&nbsp;has&nbsp;an [[atomic number|atomic number]] of 16 and a standard relative [[atomic mass|atomic mass]] of 32.065<ref>NIST. Sulfur. 2016 [cited 03/12/16]; Available from: http://webbook.nist.gov/cgi/cbook.cgi?ID=C7704349&amp;amp;amp;amp;Mask=40</ref>. The name may have been derived from the Arabic ‘sufra’ meaning yellow, or the Sanskrit ‘shulbari’ meaning enemy (ari) of [[copper|copper]] (shulba)<ref>G. Eggert, M. Weichert, H. Euler, B. Barbier, Some news about Black Spots., 2004, Proceedings of Metal, p142 (pdf download).</ref>. It is a&nbsp;naturally occuring element&nbsp;which is frequently found and regarded as an essential element for life.&nbsp;It is found in the [[amino acid|amino acids]] [[Methionine|methionine]] and [[Cysteine|cysteine]]. In [[cysteine|cysteine]] the - [[SH group|SH group]] reacts with another -SH group on a different cysteine forming a [[Disulphide bond|disulphide bond]] <ref>Berg J.,Tymoczko J. and Stryer L. (2012) Biochemistry. 7th edition, Basinstoke: Freeman.</ref>  
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[[Image:Sulphur Lumps 99 98 .jpg|right|148x111px|lumps of sulphur]]Sulphur is&nbsp;represented by&nbsp;the symbol 'S'&nbsp;in the [[Periodic table|periodic table]]&nbsp;and&nbsp;has&nbsp;an [[Atomic number|atomic number]] of 16 and a standard relative [[Atomic mass|atomic mass]] of 32.065<ref>NIST. Sulfur. 2016 [cited 03/12/16]; Available from: http://webbook.nist.gov/cgi/cbook.cgi?ID=C7704349&amp;amp;amp;amp;amp;Mask=40</ref>. The name may have been derived from the Arabic ‘sufra’ meaning yellow, or the Sanskrit ‘shulbari’ meaning enemy (ari) of [[Copper|copper]] (shulba)<ref>G. Eggert, M. Weichert, H. Euler, B. Barbier, Some news about Black Spots., 2004, Proceedings of Metal, p142 (pdf download).</ref>. It is a&nbsp;naturally occuring element&nbsp;which is frequently found and regarded as an essential element for life.&nbsp;It is found in the [[Amino acid|amino acids]] [[Methionine|methionine]] and [[Cysteine|cysteine]]. In [[Cysteine|cysteine]] the - [[SH group|SH group]] reacts with another -SH group on a different cysteine forming a [[Disulphide bond|disulphide bond]] <ref>Berg J.,Tymoczko J. and Stryer L. (2012) Biochemistry. 7th edition, Basinstoke: Freeman.</ref>  
  
When combined with [[oxygen|oxygen]], sulphur can form a [[dioxide|dioxide]] or [[trioxide|trioxide]].&nbsp;  
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When combined with [[Oxygen|oxygen]], sulphur can form a [[Dioxide|dioxide]] or [[Trioxide|trioxide]].&nbsp;  
  
 
=== References  ===
 
=== References  ===
  
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Latest revision as of 15:46, 4 December 2016

lumps of sulphur
Sulphur is represented by the symbol 'S' in the periodic table and has an atomic number of 16 and a standard relative atomic mass of 32.065[1]. The name may have been derived from the Arabic ‘sufra’ meaning yellow, or the Sanskrit ‘shulbari’ meaning enemy (ari) of copper (shulba)[2]. It is a naturally occuring element which is frequently found and regarded as an essential element for life. It is found in the amino acids methionine and cysteine. In cysteine the - SH group reacts with another -SH group on a different cysteine forming a disulphide bond [3]

When combined with oxygen, sulphur can form a dioxide or trioxide

References

  1. NIST. Sulfur. 2016 [cited 03/12/16]; Available from: http://webbook.nist.gov/cgi/cbook.cgi?ID=C7704349&amp;amp;amp;amp;Mask=40
  2. G. Eggert, M. Weichert, H. Euler, B. Barbier, Some news about Black Spots., 2004, Proceedings of Metal, p142 (pdf download).
  3. Berg J.,Tymoczko J. and Stryer L. (2012) Biochemistry. 7th edition, Basinstoke: Freeman.
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