Kolloidlar, kolloid sistemalar (Yun. kolla \u2014 elim va eidos \u2014 ko’rinish) \u2014 dispers faza zarralari- ning o’lchami 1 nm.dan 100 nm gacha bo’lgan yuqori (ultramikrogeterogen) dispers sistemalar; dispers faza zarralari nis- batan yirikroq (100 nm dan katta) bo’lgan mikrogeterogen va dagal sistemalardan farqli ravishda ultramikrogeterogen sistemalar uchun dispers faza zarrala- rining jadal Broun harakati tavsifli. Dastlab kolloid kimyo faniga asos solgan ingliz olimi Tomas Grem 1861 y.da erigan moddalarning pergament qog’oz orqali suvga o’tish (diffuziyala- nish) xossasini tekshirib, kristall moddalar (osh to’zi, shakar) eritmalari faol diffuziyalanishi, amorf moddalar (gidroksillar, elim, albumin, jelati- na, kraxmal va b.) eritmalari esa juda sekin diffuziyalanishini aniqladi va ularni tegishlicha «kristalloidlar» va «kolloidlar» deb atadi. Uning fikricha, kristalloidlar suvda eriganda chin erit- malar, kolloidlar eri ganda esa kolloid eritmalar hosil bo’ladi. Lekin keyin- chalik 1869 y.da rus olimi I. G. Borsh- chov kolloid moddalar kristall holda ham bo’lishi mumkinligini ko’rsatdi. So’ngra P. P. Veymarn, kolloid holatda 200 tadan ortiq modda tayyorlab, modda- lar sharoitga qarab kolloid holatda ham, kristalloid holatda ham bo’la olishini isbotladi. Moddaning kolloid holati nafaqat kimyoda, balki biol., tibbiyot, texnologiya va q.x.da ham nihoyatda muhim o’rin tutadi.<\/p>\n","protected":false},"excerpt":{"rendered":"
Kolloidlar, kolloid sistemalar (Yun. kolla \u2014 elim va eidos \u2014 ko’rinish) \u2014 dispers faza zarralari- ning o’lchami 1 nm.dan 100 nm gacha bo’lgan yuqori (ultramikrogeterogen) dispers sistemalar; dispers faza zarralari … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":99837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[201],"tags":[],"class_list":["post-129549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-k-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/129549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/comments?post=129549"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/129549\/revisions"}],"predecessor-version":[{"id":129553,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/129549\/revisions\/129553"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media?parent=129549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/categories?post=129549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/tags?post=129549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}