Sulphur - Periodic Table of the Elements

FACULTY OF CHEMICAL TECHNOLOGY IN SPLIT
PERIODIC TABLE OF THE ELEMENTS version 1.7


 S

English:  Sulphur
French: Soufre
Croatian: Sumpor
German: Schwefel
Italian: Solfo


Atomic number: 16
Group numbers: 16
Period: 3
Standard state (20 °C): solid

Sulfur has been known since ancient times. The origin of the name comes from the Sanskrit word sulvere meaning sulphur; also from the Latin word sulphurium meaning sulphur. It is pale yellow, odourless, brittle solid, which is insoluble in water but soluble in carbon disulfide.

Electronic configuration: [Ne] 3s² 3p⁴
Relative atomic mass: 32.065(5)
Formal oxidation number: -2 +4 +6

Electronegativities: 2.58
Thermal conductivity: 0.269 W/(m K)
Electrical resistivity (20 °C): 2E+23 μΩcm

Atomic radius: 103.5 pm
Density (g/dm3): 2070 (alpha, 293 K) 
1957 (beta, 293 K) 
1891 (liquid, 393 K)
Molar volume (cm3/mol): 15.49 (alpha, 293 K) 
16.38 (beta, 293 K) 
16.96 (liquid, 393 K)

Melting point: 115.21 °C
Boiling point: 444.60 °C
Critical temperature: 1041 °C

Heat of fusion: 1.7175 kJ/mol
Heat of vaporization: 9.62 kJ/mol
Heat of atomization: 276.6 kJ/mol

Sulfur is found in pure form and in ores like cinnabar, galena, sphalerite and stibnite. Pure form is obtained from underground deposits by the Frasch process. Used in matches, gunpowder, medicines, rubber and pesticides, dyes and insecticides. Also for making sulfuric acid (H2SO4). The price of 99.5 % pure sulfur powder is 23.60 € for 500 g. 15P <= 16S => 17Cl ___________________ If you have comments, corrections or suggestions about this site, please send me a e-mail. Periodic Table of the Elements __________________________________ Last modified: 29.03.2003 Copyright © 1998-2003 by Eni Generalic