Sulfur
Description: | |
| Sulfur is an abundant, multivalent non-metal. It is an essential element for all life, and is widely used in biochemical processes. In metabolic reactions, sulfur compounds serve as both fuels and respiratory materials for simple organisms. It is an important part of many enzymes and also in antioxidant molecules like glutathione and thioredoxin. Organically bonded sulfur is a component of all proteins, as the amino acids cysteine and methionine. Disulfide bonds are largely responsible for the mechanical strength and insolubility of the protein keratin, found in outer skin, hair, and feathers, and the element contributes to their pungent odor when burned. The element's commercial uses are primarily in fertilizers, because of the relatively high requirement of plants for it, and in the manufacture of sulfuric acid, a primary industrial chemical. Other well-known uses for the element are in matches, insecticides and fungicides. | |
Chemical Properties.
| Appearance | Lemon Yellow Solid |
| Atomic Number | 16 |
| Atomic Weight | 32.065 g/mol |
| Block | p |
| Boiling Point | 444.6 °C |
| CAS Number | 7704-34-9 |
| Class | 4.1 |
| Crystal Structure | Orthorhombic |
| Density | 2.07 g/cm3 |
| EINECS Number | 231-722-6 |
| Electron Configuration | 1s2 2s2 2p6 3s2 3p4 |
| Group | 16 |
| IUPAC Name | Sulfur |
| InChI | 1/S |
| InChIKey | NINIDFKCEFEMDL-UHFFFAOYAI |
| Ionization Energy | 999.6 KJ/mol |
| Melting Point | 115.21 °C |
| Molar Mass | 32.06 g/mol |
| Molecular Formula | S |
| Oxidation State | 6,5,4,3,2,1,-1,-2 |
| PG | 3 |
| Period | 3 |
| Symbol | S |
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