Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Sodium pentasulphide

A. Rule and J. S. Thomas give 251 8° for the melting point of sodium pentasulphide, and 206° for that of the potassium salt. When the potassium salt is... [Pg.638]

H. Bottger has said that when a soln. of the alleged sodium pentasulphide is boiled with head hydroxide, it behaves like a mixture of sulphur and sodium monosulphide, for lead sulphide and sodium thiosulphate are produced he adds that in... [Pg.639]

Wh/kg. As indicated in the sodium-sulphur phase diagram given in Fig. 8.15, sodium pentasulphide and sulphur are not mutually soluble at the temperature of cell operation, so that two liquid phases are present in the cathode compartment and the cell voltage is invariant. As the discharge progresses and the available elemental sulphur is consumed, a series of reactions commences as the sodium pentasulphide is converted to lower polysulphides, all of which are mutually soluble ... [Pg.262]

Arsenic trichloride Gallium arsenide Potassium arsenate Arsine Arsenic add Sodium arsenate Sodium arsenite CaicKjm arsenate Arsenic trioxide Arsenic pwtoxide Arsenic bisulphide Arsenic pentasulphide Arsenic hemiselenide... [Pg.459]

Whilst the polysulphides of potassium, rubidium, and caesium resemble one another very closely, the sodium compounds exhibit notable differences. Thus, whilst the first-named three elements all form hexasulphides and stable pentasulphides, in the case of... [Pg.630]

Sodium thiosulphate also yields a precipitate of arsenic pentasulphide, slowly in the cold but more readily on heating and when hydrochloric acid is present 2 pentathionie acid is formed in the solution.3... [Pg.189]

Arsenious sulphide is completely precipitated from a hot acid solution of an arsenite, and arsenic pentasulphide from one of an arsenate, by the addition of sodium thiosulphate, whilst both arsenites and arsenates are precipitated quantitatively as arsenious sulphide by ammonium thioacetate.6... [Pg.313]

See other pages where Sodium pentasulphide is mentioned: [Pg.637]    [Pg.637]    [Pg.638]    [Pg.638]    [Pg.639]    [Pg.639]    [Pg.640]    [Pg.637]    [Pg.637]    [Pg.638]    [Pg.638]    [Pg.639]    [Pg.639]    [Pg.640]    [Pg.421]    [Pg.637]    [Pg.637]    [Pg.638]    [Pg.638]    [Pg.639]    [Pg.639]    [Pg.640]    [Pg.637]    [Pg.637]    [Pg.638]    [Pg.638]    [Pg.639]    [Pg.639]    [Pg.640]    [Pg.421]    [Pg.842]    [Pg.842]    [Pg.508]    [Pg.630]    [Pg.635]    [Pg.635]    [Pg.638]    [Pg.639]    [Pg.640]    [Pg.644]    [Pg.703]    [Pg.735]    [Pg.842]    [Pg.275]    [Pg.277]    [Pg.279]    [Pg.280]    [Pg.283]    [Pg.413]    [Pg.202]    [Pg.628]    [Pg.630]    [Pg.727]    [Pg.1015]    [Pg.1149]    [Pg.1154]    [Pg.1149]   
See also in sourсe #XX -- [ Pg.113 ]



SEARCH



© 2024 chempedia.info