二硫化炭素による硫化ランタンの合成とそれら硫化物の空気中での加熱変化

DOI Web Site

書誌事項

タイトル別名
  • Preparation of Lanthanum Sulfides Using Carbon Disulfide as a Sulfurizing Agent and the Change of These Sulfides on Heating in Air

この論文をさがす

説明

Some investigations were made on the preparation of lanthanum sulfides from lanthanum oxide using carbon disulfide as a sulfurizing agent. Three kinds of sulfides were obtained in a temperature range of 500-4400°C. The composition and structure of the reaction products were as follows: below 650°C, LaS2, cubic, a=8.19 A: 700-1300°C, A*-La2S8, structure unknown: above 1350°C, C-La2S3, cubic, a=8.72 A.<BR>In order to know the thermal stability of these sulfides the change of these sulfides on heating in air was also investigated by means of DTA, TGA and X-ray diffraction method. These sulfides were found to form La2O2- above 1300°C after the thermal decomposition of intermediate compounds such as La2O2-S2, La2O2-S and La2O2-SO4.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ