10-Mavzu. Kolloid eritmalar haqida tushuncha

SENTRIFUGALASH USULI.
1913 yilda A.V.Lumanskiy kolloid eritmalarda kolloid zarrachalarni sentrifuga yordamida cho’ktirib ajratib olish mumkinligini ko’rsatdi. Bu usulni takomillashtirib, Svedberg kolloid zarrachalarni cho’ktirishda hozirgi zamon ultrasentrifugasini qo’lladi. U minutiga 60000 marotiba aylanadi.Fundamentals of Analytical Chemistry Dou glas A. Skoog Stanford University Donald M. West San Jose State University F. James Holler University of Kentucky Stanley R. Crouch Michigan State University Edition Brooks/Cole 20 Davis Drive Belmont, CA 94002-3098 USA. 231-233 Pg


Nazorat savollari.
1. Kolloid dispers sistemalar qanday sharoitda hosil bo’ladi?
2. Kolloid eritmani olish usullarini sanab o’ting. Usullarini izohlab bering.
3. Kolloid eritma olishning kondensatsion usuli necha turga bo’linadi? Misollar asosida izohlang.
4. Kolloid eritmalarni tozalash usullari va ularning amaliy ahamiyati.
5. Dializ usulida kolloid eritmalarni tozalashni misollar asosida tushuntiring.