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Sulfur (₁₆S^32.066)
[7704-34-9]

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Elemental Form


Known in ancient times as brimstone, sulfur is essential to life. It is pale yellow, odorless, brittle, nonmetallic solid. 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. A large amount of sulfur is used in the production of sulfuric acid, which some refer to as the most important manufactured chemical.
Melting Point	115.21°C	Boiling Point	444.6°C
Density	2.07g/cm³	Themal Conductivity	6.31x10^-4cal/cm²/cm/s/°C
Specific Heat @ 25°C	0.175cal/g°C	Heat of Fusion	0.34k-cal/g-atom
Heat of Vaporization	3.01k-cal/g-atom	Atomic Volume	15.5W/D
First Ionization Energy	239K-cal/g-mole	Electronegativity	2.5Pauling's
Covalent Radius	1.02Angstroms	Mohs Hardness @ 20°C	1.5-2.5
Linear Coefficient of Expansion	6.5x10^-6K^-1	Crystal Structure	Cubic
Critical Temperature	1040°C	Critical Pressure	116atm
Critical Volume	2.48ml/g	Vapor Pressure @ 1727°C	9.5x10^-11atm