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¿ä¾à 1. Topic: Purification by cristallization

2. Principle:°íü È­ÇÕ¹°ÀÇ Á¤Á¦¿¡ ¾²ÀÌ´Â °áÁ¤¹ýÀº ÀϹÝÀûÀ¸·Î °íüÀÇ ¿ëÇØµµ°¡ ¿Âµµ°¡ ³·¾ÆÁú ¶§ °¨¼ÒÇÏ´Â ¿ø¸®¿¡ ÀÇÇÑ °ÍÀÌ´Ù. ¿ëÇØµµ´Â Ç¥ÁØ ºÎÇÇ¿¡ ³ì¾Æ¼­ Æ÷È­¿ë¾×ÀÌ µÇ´Âµ¥ ÇÊ¿ä·Î ÇÏ´Â °íüÀÇ ¾çÀ¸·Î¼­ Á¤ÇÑ´Ù. °áÁ¤È­¿¡ »ç¿ëÇÏ´Â ¿ë¸Å´Â ¶ß°Å¿ï ¶§ ¾ÆÁÖ ¸¹Àº ¾çÀÇ °íü¸¦ ³ìÀ̰í Â÷°¡¿ï ¶§ ºñ±³Àû ÀûÀº ¾çÀ» ³ìÀÏ ¼ö ÀÖ´Â ´É·Â¿¡ µû¶ó¼­ ¼±ÅÃÇÑ´Ù.

3. Equipment & Reagent

1) Equipment:
flask 100ml
wire gauze
funnel
filter paper
erlenmeyer flask
test tube
condenser
Buchner funnel

2) Reagent
table1.

<><135.17><304><114.3><1.2190><1g>
<><60.09><82.3><-89.5><0.7864><2ml>
<><78.11><80.01><5.5><0.8765><2ml>
<><18><100><0><1><2ml>

4. Procedure

-¿ë¸Å ½ÃÇè-
¨ç¼Ò·®ÀÇ ¾Æ¼¼Æ®¾Æ´Ò¶óÀÌµå °áÁ¤À» ½ÃÇè°ü 3°³¿¡ ³Ö´Â´Ù.
¨èÀÌµé ½ÃÇè°ü Áß Çϳª´Â ¹°2ml, ´Ù¸¥ Çϳª´Â À̼ÒÇÁ·ÎÇʾËÄÚ¿Ã2ml, ¶Ç ´Ù¸¥ Çϳª´Â º¥Á¨2ml ³Ö´Â´Ù.
¨éÀÌµé ½ÃÇè°üÀ» ¹°ÁßÅÁ¿¡¼­ °¡¿­ÇÑÈÄ ´Ù ³ìÀ¸¸é ´Ù½Ã ¾óÀ½¹°¿¡ ³Ö¾î ³Ã°¢ÇÑ´Ù.
¨ê¸¸¾à ¾î´À ½ÃÇè°£¿¡¼­µµ °áÁ¤ÀÌ »ý±âÁö ¾ÊÀ¸¸é, ¾Æ¼¼Æ®¾Æ´Ò¶óÀ̵åÀÇ °áÁ¤ ¡°¾¾¡±¸¦ ³Ö°í ¿ë¾×ÀÌ ÀÖ´Â ½ÃÇè°üÀÇ ¾ÈÂÊ º®À» Á£°³·Î ¹®Áö¸¥´Ù.
-¾Æ¼¼Æ®¾Æ´Ò¸®µåÀÇ °áÁ¤È­-
¨çºÒ¼ø¹°ÀÌ ¼¯ÀÎ ¾Æ¼¼Æ®¾Æ´Ò¸®µå2g + ¹° 25ml + ºñµî¼®2~3°³ ¸¦ 100ml flask¿¡ ³Ö´Â´Ù.
¨èÇöó½ºÅ©¸¦ ö¸Á À§¿¡ ³õ°í °¡²û Èçµé¾î Áָ鼭 È¥ÇÕ¹°ÀÌ ²úÀÎ ÈÄ ±ò´ë±âÀÇ °Å¸§Á¾ÀÌ·Î °Å¸¥´Ù.(¶ß°Å¿ï ¶§ ¹Ù·Î ¿©°ú)
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