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This verified that after adding the Mg2+ ion and Er3+ ion to crystal lattice of CaCO3 , the crystal structure did not change dramatically, but due to the radius of Mg2+¡¢ Er3+ and Ca4+ ions are 0.87Å¡¢0.9Å and 0.69Å .

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jiayou201101

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2Â¥: Originally posted by mlanqiang at 2013-11-10 20:21:10
it has been proved that, the radius of Mg2+¡¢ Er3+ and Ca4+ is so big that the crystal structure had little change with addition of all the three ions to the crystal lattice of CaCO3.

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3Â¥2013-11-10 21:18:18
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jiayou201101: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-11-16 17:42:58
it has been proved that, the radius of Mg2+¡¢ Er3+ and Ca4+ is so big that the crystal structure had little change with addition of all the three ions to the crystal lattice of CaCO3.
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2Â¥2013-11-10 20:21:10
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jiayou201101: ½ð±Ò+10, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-11-16 17:42:50
ǰһ¾äÖ±µ½dramatically, ûÓÐÎÊÌ⣬ֻÊÇÐèÒªÉÔ΢ÐÞÊÎÏ¡£ÎÊÌâÊÇŪ²»ÇåÂ¥Ö÷Ô­ÎÄ×îºóÒ»¾äÊÇ·ñÍêÕû£¬²Â²â 0.87Å¡¢0.9Å and 0.69Å ÊÇÓÐЩ·ûºÅûÕýÈ·ÏÔʾ¡£Õâ¾äbut due to the radius of Mg2+¡¢ Er3+ and Ca4+ ions are ¡£¡£¡£²»ÖªµÀ¸ÃÔõôÀí½â£ºÇ°¾ä˵¼ÓÈë¡£¡£¡£¶Ô¡£¡£¡£Ã»Óжà´óÓ°Ï죬ÄÇôÕâ¾äbut due to the radius of ¡£¡£¡£Èç¹ûÊÇÏë˵¡°µ«ÊÇÓÉÓÚµÄÖ±¾¶¡£¡£¡£¡±£¬ÄÇô¾ÍÉÙºó±ßµÄÒ»¾ä»°£»»¹ÇëÂ¥Ö÷˵Ã÷£¬×îºÃ¸ø³öÖÐÎÄÔ­ÎÄ¡£
ǰһ¾ä¸öÈËÈÏΪ¿ÉÒÔÐ޸ijɣºThis shows that there are no dramatic changes to the crystal structure by adding the Mg2+ ion and Er3+ ion to crystal lattice of CaCO3
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4Â¥2013-11-11 07:36:06
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