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Identification of the main Sulfur Nitrogen Compounds in sulfur ammonia solutions
Author(s) -
Prestel H.,
Schindewolf U.
Publication year - 1987
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19875510804
Subject(s) - sulfur , chemistry , ammonia , nitrogen , precipitation , inorganic chemistry , absorption (acoustics) , absorption spectroscopy , organic chemistry , materials science , physics , quantum mechanics , meteorology , composite material
By comparison of the UV‐VIS absorption spectra of solutions of sulfur and of synthesized sulfur nitrogen compounds in ammonia and by comparison of their light induced changes we conclude that S 7 NH, S 4 NH and S 3 NH are besides polysulfides H 2 S x the Main compounds in sulfur ammonia solutions. The equilibria between the species are shifted reversibly by photoinduced reactions and permanently by Ag 2 S precipitation (with AgNO 3 ). As the only and final product on Ag 2 S precipitation S 3 N 3 H is identified which by oxidation forms S 4 N 4 .