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Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Ammonium Sulfide

Introduction

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Ammonium sulfide, also known as diammonium sulfide, is a hypothetical salt with the formula [NH4]2S. Aqueous solutions purporting to contain this salt are commercially available. With a pKa exceeding 15,[1] the hydrosulfide ion cannot be deprotonated by ammonia. Thus such solutions consist of a mixture of ammonia and [NH4]SH.

Safety

Safety

Solutions of “ammonium sulfide” are hazardous as labile sources of toxic hydrogen sulfide.[2]

References

References

  1. ↑ Meyer B, Ward K, Koshlap K, Peter L “Second dissociation constant of hydrogen sulfide” Inorganic Chemistry, (1983). volume 22, pp. 2345.doi:10.1021/ic00158a027
  2. ↑ J.T. Baker: MSDS for Ammonium Sulfide