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Determination of elemental sulfur in phosphorous pentasulfide by temperature modulated differential scanning calorimetry

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Abstract

Phosphorous pentasulfide is an important starting material for a number of commercial chemicals. Examples include lubricant additives (Spikes, Trib Lett 17:469–489, 2004), agricultural insecticides (Kirk-Othmer, Enycl Chem Technol 14:549–552, 1995), and mining ore flotation agents. Phosphorous pentasulfide is a mixture of several components, one of which is free elemental sulfur, present at levels of approximately 50 ppm to 20,000 ppm (2 %). The amount of free sulfur present in the phosphorous pentasulfide can impact manufacturing, such as zinc dithiosulfate processing. Therefore, an accurate and fast analytical method to measure elemental sulfur in phosphorous pentasulfide would be of value compared to what is available now.

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Authors and Affiliations

  1. The Lubrizol Corporation, Wickliffe, OH, USA

    Tina M. Adams & Paul Adams

Authors
  1. Tina M. Adams
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  2. Paul Adams
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Correspondence to Tina M. Adams.

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Adams, T.M., Adams, P. Determination of elemental sulfur in phosphorous pentasulfide by temperature modulated differential scanning calorimetry. J Therm Anal Calorim 109, 1285–1290 (2012). https://doi.org/10.1007/s10973-012-2627-5

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  • DOI: https://doi.org/10.1007/s10973-012-2627-5

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