1. Te mahana o te ra (0.2% otinga) 50-90°C. 2. Ka whakarewahia ki te wai me te nuinga o te polar c me te wahanga tika o te waiwaro/wai, propanol/wai, dichloroethane, me etahi atu, kare e rewa i roto i te etera, te acetone, te ewaro tino, ka pupuhi ki roto ki te wai maramara, paku puhoi ranei i roto i te wai matao wairewa colloidal. Ko te wai ...
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