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bity324

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ÔÚ·´Ó¦Î¶È230¡æ¡¢n(Fe2+)/n(Fe3+)Ϊ0.1¡¢×ÜFeŨ¶ÈΪ1.25 mol•L-1ºÍ¾§ÖÖÁ¿Îª2gÌõ¼þÏ£¬¸Ä±än(Fe2+)/n(Fe3+)¡Ü0.04»ò×ÜFeŨ¶ÈΪ1.875 mol•L-1ʱ£¬Ë®ÈÈ·¨²úÎïΪÇò×´Ìå¦Á-Fe2O3£»¸Ä±ä¾§ÖÖÁ¿Îª0gʱ£¬Ë®ÈÈ·¨²úÎïΪÍÖÇò×´¦Á-Fe2O3¡£¸Ä±ä·´Ó¦Î¶ÈΪ140¡æ»òn(Fe2+)/n(Fe3+)¡Ý0.12ʱ£¬ËùµÃË®ÈȲúÎïÎïÏàΪ¦Á-Fe2O3ºÍ¦Á-FeOOH»ò¦Á-Fe2O3ºÍFe3O4¡£

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benmao_mogu

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bity324(½ð±Ò+5, ·­ÒëEPI+1): 2010-04-17 15:26
sirljz(½ð±Ò+2):лл½»Á÷ 2010-04-17 16:59
bity324(½ð±Ò+20): 2010-06-22 11:12:16
In the reaction temperature of 230 degrees , n (Fe2 +) / n (Fe3 +£©is 0.1,  and  the total concentration of Fe is 1.25 mol/ L and the seed crystal is 2gb, change under the condition of n( Fe2 +) /n (Fe3 +) or 0.04 or total concentration of 1.875 mol Fe/ L, hydrothermal products of alpha Fe2O3 for spheroids, Change the seed crystal of 0g, hydrothermal products as directed globular alpha Fe2O3. Change the reaction temperature for 140 degrees Celsius n(Fe2 +)/n (Fe3 +), income hydrothermal 0.12 phase of product for the alpha Fe2O3 and alpha FeOOH or alpha Fe2O3 and Fe3O4.
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