Selenium 34 Se 78.96(3)   Switch element to... actinium aluminium aluminum americium antimony argon arsenic astatine barium berkelium beryllium bismuth bohrium boron bromine cadmium caesium calcium californium carbon cerium cesium chlorine chromium cobalt copper curium darmstadtium dubnium dysprosium einsteinium erbium europium fermium fluorine francium gadolinium gallium germanium gold hafnium hassium helium holmium hydrogen indium iodine iridium iron krypton lanthanum lawrencium lead lithium lutetium magnesium manganese meitnerium mendelevium mercury molybdenum neodymium neon neptunium nickel niobium nitrogen nobelium osmium oxygen palladium phosphorus platinum plutonium polonium potassium praseodymium promethium protactinium radium radon rhenium rhodium roentgenium rubidium ruthenium rutherfordium samarium scandium seaborgium selenium silicon silver sodium strontium sulfur sulphur tantalum technetium tellurium terbium thallium thorium thulium tin titanium tungsten ununbium ununhexium ununoctium ununpentium ununquadium ununtrium uranium vanadium xenon ytterbium yttrium zinc zirconium Go adjacent... P S Cl As Se Br Sb Te I

Compounds of selenium:

selenium (II) sulphide

• Formula as commonly written: Se₄S₄
• Hill system formula: S₄Se₄
• CAS registry number: [75926-28-2]
• Formula weight: 444.104
• Class: sulphide

Synonyms

• selenium (II) sulphide
• tetraselenium tetrasulphide

Physical properties

• Colour: red
• Appearance: crystalline solid
• Melting point: 113°C (decomposes)
• Boiling point:
• Density: 3300 kg m^-3

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Element analysis and oxidation numbers

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the Se₄S₄ unit with the most intense ion set to 100%.

Formula: Se₄S₄

mass  %
430   0.0 
431   0.0 
432   0.2 
433   0.0 
434   0.9 
435   0.2 
436   3.7 __
437   0.6 
438  11.6 ______
439   1.8 _
440  29.1 _______________
441   3.6 __
442  57.2 _____________________________
443   5.4 ___
444  87.5 ____________________________________________
445   6.1 ___
446 100.0 __________________________________________________
447   4.7 __
448  81.6 _________________________________________
449   2.9 _
450  41.0 ____________________
451   1.2 _
452  12.4 ______
453   0.3 
454   2.3 _
455   0.1 
456   0.3 
457   0.0 
458   0.0 

References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

• R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
• N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
• F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
• A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
• R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
• A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
• A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
• J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
• D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
• J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
• J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.

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