Topic
Sodium sulfide
About: Sodium sulfide is a research topic. Over the lifetime, 2851 publications have been published within this topic receiving 27733 citations. The topic is also known as: disodium sulfide.
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TL;DR: Aroylphenylacetylenes reacted with ammonium dithiocarbamate and ammonium hydrogen sulfide in 60% dioxane-waler mixture at 15° to give mainly a mixture of the corresponding β-hydroxy-α-thiobenzoylstyrene derivatives (III) and (E,Z)-β,β'-di(α-aroylstryl) sulfides (IV), whereas with sodium xanthate and sodium sulfide they gave only (III).
16 citations
TL;DR: In this paper, the electronic structure of lithium sulfide and sodium sulfide in the solid state is established at the Hartree-Fock level, as implemented in the CRYSTAL program.
Abstract: The electronic structure of lithium sulfide and sodium sulfide in the solid state is established at the Hartree-Fock level, as implemented in the CRYSTAL program. Two all-electron basis sets are adopted for each compound. Mulliken analysis, band structure, density of states and electron charge density are studied: these exhibit the highly ionic character of both compounds; this seems rather surprising because of the weak electronegativity and large polarizability of the sulfur. Form factors of the sulfur are deduced from the structure factors and analysed in order to show the deformations of this anion in the crystal environment
16 citations
TL;DR: This technique has been used successfully for the isolation of Amoebobacter, Chromatium, Ectothiorhodospira, Lamprocystis, Thiocapsa, andThiocystis and one advantage is that sodium sulfide need not be added to the agar medium, which, therefore, may be prepared and stored for future use.
Abstract: Thioacetamide (TAA), CH3CSNH2, is an unstable sulfur compound which upon addition of acid decomposes into acetic acid, ammonia, and hydrogen sulfide (H2S). This characteristic may be taken advantage of when doing plate counts or isolation streaks of phototrophic purple sulfur bacteria. We have performed plate counts and isolation streaks of these bacteria in Gas-Pak anaerobic jars (BBL) supplemented with a test tube containing 0.05 g or 0.10 g TAA dissolved in 1.0 ml of 0.2 N or 0.5 N HCl. It may be demonstrated in a Warburg respirometer that the gas is released over a period of at least 1 week. Colony growth may be observed in 5–10 days. One advantage of this technique is that sodium sulfide (Na2S·9H2O) need not be added to the agar medium, which, therefore, may be prepared and stored for future use. This technique has been used successfully for the isolation ofAmoebobacter, Chromatium, Ectothiorhodospira, Lamprocystis, Thiocapsa, andThiocystis.
16 citations
TL;DR: In this paper, the size and shape of the product could be tuned by the reaction parameters including electrolysis voltage and sulfide ion concentration as reactant, and the results of characterization of the prepared CuS nanoparticles were reported.
Abstract: CuS nanoparticles in different sizes and shapes were synthesized by electrolysis of a copper plate as anode in sodium sulfide aqueous solutions. The results revealed that size and shape of the product could be tuned by the reaction parameters including electrolysis voltage and sulfide ion concentration as reactant. The results showed that the size of CuS nanoparticles decreased with increasing electrolysis voltage from 2 to 13 V. Meanwhile, the size and shape of the prepared CuS nanoparticles were found to be dependent on the concentration of sulfide solution used. Also, the results of characterization of the prepared CuS nanoparticles were reported.
16 citations
TL;DR: In the presence of diphenyl diselenide, phenylselenol and thiophenol, the GifIV system (FeII/O2) is able to produce phenyl seleno derivatives along with the oxidation products as discussed by the authors.
16 citations