I-Hydroxyethyl cellulose (HEC) yi-cellulose emhlophe okanye ekhaphukhaphu, engenavumba, engeyotyhefu okanye eqinile, eyenziwe ngeelitha zomqhaphu ekrwada okanye ipulpiti ehluziweyo efakwe kwi-alkali engama-30% yolwelo, ikhutshwe kwaye icinezelwe emva kwesiqingatha seyure, Cine de kufike umlinganiselo. amanzi e-alkaline afikelela kwi-1:2.8, emva koko utyumze. Yinto prepa...
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