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- Sulfur Metal (S) (Powder/ Granule/ Pellet/ Prill) Synonyms:
Sulpur, sulphur, sulfur prill, brimstone, sulfur powder, sulfur pieces, sulfur pellets, sanskrit, sulvari, sulphurium, ICSD 63082, PDF 8-247, schwefel, soufre, CAS# 7704-34-9,
- Sulfur Metal (S) (Powder/ Granule/ Pellet/ Prill) Designations:
Chemical Name: Sulfur
Chemical Formula: S
a) Known in ancient times as brimstone, sulfur is essential to life. Sulfur has unusual optical and electrical properties and is a good electrical insulator. It occurs native near volcanoes and hot springs and readily combines with many elements.
b) Sulfur or sulphur 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 pale yellow, odorless, brittle, nonmetallic solid. In nature, it can be found as the pure element and as sulfide and sulfate minerals. It is an essential element for life and is found in two amino acids, cysteine and methionine.
99.5%, 99.999%, and 99.9995%
Powder (various granulations), Pieces (random size), Pellets (1/8 inch), and Granules (3/4 inch x 20 mesh)
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Atomic Number
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16
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Molecular Weight (g/mol.)
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32.064
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Apparent Density (g/cm3)
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2.07
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Bulk Density (g/cm3)
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70-85
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Specific Heat @25°C (cal/g-°C)
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.175
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Melting Point (°F)
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~119-151
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Boiling Point (°C)
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444.6
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Thermal Conductivity @20°C (cal/s-cm°C)
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.0007
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Mohs Hardness @20°C
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1.5-2.5
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Critical Point
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1314 K, 20.7 MPa
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Mohs Hardness
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2.0
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Particle Shape
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Flake
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Specific Heat Capacity (25 °C) J·mol−1·K−1
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22.75
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Crystallography
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cubic structure
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a) Elemental sulfur is used in in the vulcanization of rubber, black gunpowder, matches, and fireworks; as a fungicide and insecticide; and in the treatment of certain skin diseases. A large amount of sulfur is used in the production of sulfuric acid, which some refer to as the most important manufactured chemical.
b) The principal use of sulfur is in the preparation of its compounds. The most important sulfur compound is sulfuric acid. Other important compounds include sulfur dioxide, used as a bleaching agent, disinfectant, and refrigerant; sodium bisulfite, used in paper manufacture; carbon disulfide, an important organic solvent; hydrogen sulfide, sulfur trioxide, and thionyl chloride, used as reagents in chemistry; the numerous sulfate compounds; and sulfa drugs.
c) June 2011 Hot News--One of the most exciting battery chemistries for electric vehicles is lithium-sulfur--it has the potential to store three times more energy than the lithium-ion batteries currently used in electric cars.
i) Chemists have known for many years that sulphur has potential: it has a theoretical specific capacity of 1672 mAh/g. But it also has a number of disadvantages, not least of these is the fact that sulphur is a poor conductor. On top of this, polysulphides tend to dissolve and wash away in many electrolytes while sulphur tends to swell during the discharge cycle causing it to crumble.
ii) Dr. Wang & colleagues from Stanford University wrap the coated sulphur particles in a graphene cage. The interaction between carbon and sulphur renders the particles electrically conducting and also supports the particles as they swell and shrink during each charging cycle. The result is a cathode that retains a specific capacity of more than 600 mAh/g over 100 charging cycles.
- Sulfur Metal (S) (Powder/ Granule/ Pellet/ Prill) Packaging Options:
Bags, drums, bulk bags & loose bulk
Listed. For further information please call the E.P.A. at +1.202.554.1404
CAS# 7704-34-9
1350
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