The synthesis of sodium sulfide pentahydrate, Na2S.5H(2)O, through a solid-gas reaction of sulfidizing gas mixture with sodium carbonate, Na2CO3
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Dosyalar
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the sulfidization of Na2CO3 was investigated by using a solid-gas reaction under a sulfidizing gas mixture, which consisted of COS, CS2, and S-2 gases. Sodium sulfide pentahydrate, Na2S center dot 5H(2)O, was prepared from sodium carbonate, Na2CO3, via a sulfidizing gas mixture by a solid-gas reaction under the cooling of a nitrogen atmosphere. The observed phase was found to be the pentahydrated form of sodium sulfide. This crystalline form was determined by X-ray powder diffraction (XRD) technique. Since sodium sulfide is strongly hygroscopic, the pentahydrated crystalline form was observed in XRD measurements for all repeated experiments. The crystal unit cell parameters of the synthesized product were in excellent agreement with values given in the JCPDS card number 18-1249. The sodium sulfide pentahydrate has an orthorhombic crystal structure with the unit cell parameters of a = 6.475, b = 12.55, C = 8.655 angstrom, space group, Cmcm and Z = 4.
Açıklama
Anahtar Kelimeler
Sodium Sulfide Pentahydrate, Solid-gas Reactions, Synthesis, X-ray Powder Diffraction
Kaynak
Phosphorus Sulfur And Silicon And The Related Elements
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
181
Sayı
6
