Manganous sulfide

The different states of polarization of a film of a given substance deposited upon different carriers cause these films to react very differently. Manganous sulfide, for example, dissolves readily in dilute acetic acid, but, according to Feigl (12), MnS is not soluble when precipitated on HgS. This interaction between the surface film of MnS and the carrier HgS is a mutual one. HgS is readily soluble in alkali sulfides. However, HgS precipitated on MnS loses some of its solubility in alkali sulfides. 

With hydrogen sulfide manganotis ion forms a flesh-colored precipitate of manganous sulfide, MnS ... 

See manganous sulfate. See manganous sulfide. See manganous sulfite. 

There are great differences in the electrical properties and disorder for the sulfides of interest, as typical examples manganous sulfide MnS, silver sulfide Ag2S, iron sulfide FeS, and nickel sulfide NiS are described here. In this sequence, the degeneracy of electrons increases, corresponding to a transition to metallic conductivity. 

Manganous Sulfide Nonstoichiometry and defect concentrations are very low in Mni yS of the order of that in nickel oxide. The predominant defect equilibrium is... 

The tracer diffusion of Fe in poly crystalline samples of the a-phase was studied by using the radioactive isotope, 59Fe. The dependence of the diffusion coefficient upon the S activity and temperature was investigated. It was found that the predominant transport mechanism was volume diffusion which proceeded via point defects, and that the Fe-diffusion rate was higher than the self-diffusion of Mn in manganous sulfide. Overall, the results could be described by ... 

It follows from these defect equilibria that the concentration of cation vacancies in chromium doped is higher than that in pure manganous sulfide,... 

From these equations it follows that the concentration of cation vacancies of lithium doped Mni should be lower and the concentration of electron holes higher than that in pure manganous sulfide. As the rate-determining step of the overall sulfidation rate is the diffusional transport of cations through cation vacancies, the protective properties of lithium doped Mni scale should be better than those of pure Mni scale. 

There are two manganese(II) sulfides, MnS and MnS2. Manganese(II) disulfide contains a S—S bond and has a pyrite stmcture. When a solution of a manganous salt is treated with ammonium sulfide, a flesh-colored hydrated precipitate is formed which is comprised of MnS and Mn(II)S2. This mixture very slowly changes to the mote stable green-black MnS. 

T. Chen, The Oxidation of A.lkenes, A.lcohok and Sulfides bj Manganates, MS dissertation. University of Regiaa, Saskatchewan, Canada, 1991, p. 262. 

Alkali-immobile dye-releasing quinone compounds, 19 293-294 Alkali lignins, 15 19-20 Alkali manganate(VI) salts, 15 596 Alkali manganates(V), 15 592 Alkali-metal alkoxide catalysts, 10 491 Alkali-metal alkoxides, effects of, 14 252 Alkali-metal alkylstannonates, 24 824 Alkali-metal fluoroxenates, 17 329-330 Alkali-metal hydrides, 13 608 Alkali-metal hydroxides, carbonyl sulfide reaction with, 23 622 Alkali-metal metatungstates, 25 383 Alkali-metal perchlorates, 18 211 Alkali-metal peroxides, 16 393... 

Magnesium chloride, anhydrous, 29 Manganous chloride, anhydrous, 29 Mercuric sulfide, red, 19 Mercury, solubility of metals in, 6 Metals, solubility in mercury, 6 Monochloroamine, 59 analysis of, 62... 

Solutions of manganous salts yield with ammonium sulfide TS a salmon colored precipitate that dissolves in acetic acid. 

Reactions with inorganics. Reducing substances that could be present in the raw water and raw wastewater and treated water and treated wastewater are ferrous, manganous, nitrites, and hydrogen sulfide. Thus, these are the major substances that can interfere with the effectiveness of chlorine as a disinfectant. The interfering reactions are written as follows with ferrous ... 

---