英语翻译In this study the preparation of ultrafine powder of Bi2

英语翻译
In this study the preparation of ultrafine powder of Bi2S3 by a reaction between bismuth octanoate and sulfur in organic solvent such as high boiling alcanes is reported.The first step was the preparation of bismuth octanoate.Bi(NO3)3⋅5H2O and octanic acid were used as the starting materials.The acid was reagent and solvent at the same time and was added in twice excess.After boiling the mixture of starting materials during 1 hour,the product was salted out by ethylacetate.The precipitate was filtered and dried in exxicator at room temperature.The second step was the synthesis of bismuth sulfide by boiling of bismuth octanoate and sulfur in decane during 2.5 hours.The dark grey precipitate was filtered and washed with hexane several times to remove the impurites.The product was dried in exxicator at room temperature.