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Chemistry

 Ekstrakcija un reekstrakcija
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ID number:911493
 
Author:
Evaluation:
Published: 18.01.2008.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Ekstrakcija un reekstrakcija.

Ekstrakcija ir vielas pāriešana no ūdens fāzes neūdens fāzē. Pēc tam organisko fāzi sauc par ekstraktu. Ūdens šķīdumā esošie metālu joni organiskos šķīdinātājos nepāriet, tādēļ tos vispirms pārvērš par iekšēji kompleksiem savienojumiem.
Cinku ekstrahē dietilditiokarbamāta veidā.
Organiskās vielas slāni no ūdens slāņa atdala izmantojot dalāmo piltuvi. …

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