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SULFUR
(S)
GENERAL
PROPERTIES
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Symbol:
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S
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Atomic
Number:
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16
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Atomic
Weight:
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32.06
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Density:
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2.07
gm/cc (rhombic)
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Melting
Point:
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112.8
oC
(rhombic)
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Boiling
Point:
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444.674
oC
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Thermal
Conductivity:
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0.00205
W/cm/oK
@ 298.2 oK
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Electrical
Resistivity:
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2x1023
microhm-cm
@ 20 oC
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Electronegativity:
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2.5
Paulings
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Specific
Heat:
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0.175
Cal/g/oK
@ 25 oC
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Heat
of Vaporization:
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3.01
K-cal/gm atm at 444.674 oC
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Heat
of Fusion:
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0.295
Cal/gm mole
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MATERIAL
OVERVIEW
Characteristics:
Pure sulfur exists in two stable crystalline forms (a)
Alpha-sulfur: rhombic, octahedral yellow crystals
stable at room temperature. (b) Beta-sulfur:
monoclinic, prismatic pale yellow crystals slowly
changing to alpha form below 94.5°C. Both forms are
insoluble in water, but slightly soluble in alcohol
and ether. Soluble in carbon disulfide, carbon
tetracholoride, and benzene. Conbustible, nontoxic.
Hazards:
Fire and explosion risk in finely divided form.
POWDER, SHOT, PELLETS, & INGOT
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Material
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Purity
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Sulfur
Pieces
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5N,
6N
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Sulfur
Powder -40 Mesh
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4N,
6N
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Sulfur
Powder -100 Mesh
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4N,
6N
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Powder,
shot, pellets, and ingots are packaged to order and
sold by the gram or kilogram.
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