Hydroxyethyl cellulose (HEC) jẹ funfun tabi ina ofeefee, olfato, ti kii-majele ti fibrous tabi powdery ri to, ti a ṣe ti owu linters aise tabi ti won ti refaini ti ko nira ti a fi sinu 30% alkali olomi, mu jade ati tẹ lẹhin idaji wakati kan, Fun pọ titi ipin. ti omi alkali de 1: 2.8, lẹhinna fọ. O jẹ igbaradi ...
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