Wednesday, February 9, 2011

Bryan Chia Jun Qing (5)

Carbon + Sulfur => Carbon disulfide 

Carbon disulfide is formed from covalent bonding between carbon and sulphur. The compound is used frequently as a building block in organic chemistry as well as an industrial and chemical non-polar solvent. It has an "ether-like" odour, but commercial samples are typically contaminated with foul-smelling impurities, such as carbonyl sulfide.


Carbon is the chemical element with symbol C and atomic number 6. It is non-metallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with 12C and 13C being stable, while 14C is radioactive, decaying with a half-life of about 5730 years. Carbon is one of the few elements known since antiquity.


Sulfur is the chemical element that has the atomic number 16. It is denoted with the symbol S. It is an abundant, multivalent non-metal. Sulfur, in its native form, is a bright yellow crystalline solid. In nature, it can be found as the pure element and as sulfide and sulfate minerals. Its commercial uses are primarily in fertilizers, but it is also widely used in black gunpowder, matches, insecticides and fungicides. Elemental sulfur crystals are commonly sought after by mineral collectors for their brightly coloured polyhedron shapes.




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