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[ Last edited by qingshaojun0823 on 2009-9-24 at 09:23 ]

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fangbj

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¡ï
×ø¿´ÔÆÆð8556(½ð±Ò+1,VIP+0):àŠлл~~~ 9-22 21:13
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The crystalline water in the compound/»òÎïÖÊÃû dehydrates inhomogenously above 300¡æ during the heat treatment process, which produces the irregular shape of the ÎïÖÊÃû obtained.
4Â¥2009-09-22 10:13:13
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fangbj

ľ³æ (ÕýʽдÊÖ)

¡ï
×ø¿´ÔÆÆð8556(½ð±Ò+1,VIP+0):ÎÒÓõÄÊÇË®ÈÈ·¨ºÏ³ÉµÄ ²»¹ý»¹ÊÇлл¿©~~~ 9-21 15:20
ÖÐÎľÍÓÐÎÊÌâÁË¡£XRD²»ÄÜ·ÖÎö³ö²úÆ·Öк¬Óнᾧˮ£¬Èܽº-Äý½º·¨Ç°ÇýÌå·Ö½âʱ¶¼°éËæ×ÅÈܼÁµÄÍѳý£¬²»»áµ¼Ö²úÆ·ÐÎ×´µÄ¹ÖÒìÖ®´¦¡£Õâ¸ö½âÊÍÉó¸åÈ˲»»á½ÓÊܵġ£
2Â¥2009-09-21 13:44:10
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jw227

ľ³æ (ÖøÃûдÊÖ)

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×ø¿´ÔÆÆð8556(½ð±Ò+5,VIP+0):many thanks!!! 9-22 09:44
The results of  XRD and chemical analysis  showed that products contain crystal water. When the temperature exceeds 300 ¡æ, dehydration began, which led to dehydration accompanied with producing and the shape of the product is not ideal.

[ Last edited by jw227 on 2009-9-21 at 16:50 ]
ÎÒÊÇÀ´ÏûDzµÄ
3Â¥2009-09-21 16:48:56
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wangjianna

½ð³æ (ÕýʽдÊÖ)

if there is nothing wron with your theory

¡ï ¡ï
linghanyuan(½ð±Ò+1,VIP+0):лл½»Á÷ 9-23 18:13
×ø¿´ÔÆÆð8556(½ð±Ò+1,VIP+0):лл½»Á÷~~~ 9-24 09:01
The  XRD and chemical analysis shows that there is water of crystalization on the produchtion.  when under the reaction tempreture, which is over 300@, the production begains to dehydrate and decompose. this dehydration while formation makes an irregular crystal form of the product


3q
Reaction Calorimetric/ Process safety/Hazard evaluation
5Â¥2009-09-23 14:06:50
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