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Synthesis of Nickel Sulfide by Homogeneous Precipitation from Acidic Solutions of Thioacetamide
Author(s) -
Grau Jason,
Akinc Mufit
Publication year - 1996
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1996.tb08550.x
Subject(s) - thioacetamide , nickel , nickel sulfide , inorganic chemistry , precipitation , chemistry , thermal decomposition , sulfide , aqueous solution , stoichiometry , sulfur , hydrolysis , nuclear chemistry , organic chemistry , biochemistry , physics , meteorology
Nickel sulflde powders were precipitated by utilizing the thermal decomposition of thioacetamide in acidic aqueous solutions. Precipitation was induced by a direct reaction between thioacetamide and nickel at 70° and 80°C with thioacetamide concentrations of 0.80 M . Precipitation was induced by reaction of sulfide ions with nickel at 90°C and at low pH. Direct reaction products were amorphous and contained significant amounts of carbon, excess sulfur, and hydrogen. Hydrolysis‐controlled precipitation yielded faceted crystalline particles 2 to 4 μm in size. Crystalline, spherical particles with compositions near stoichiometric NiS were precipitated with high yields.