SpletThe present invention relates to a sulfonated aromatic polymer containing the recurring structural unit of the formula (I) -O-Ar1 (SO3R) nC (CF3) 2-Ar ' (SO3R) nO-Ar2- (X-Ar2) m- (I), in which... SpletPRINSIP KERJA KARL FISHER Metode ini digunakan untuk mengukur kadar air contoh dengan metode volumetri berdasarkan prinsip titrasi. Titran yang digunakan adalah pereaksi Karl Fischer (campuran iodin, sulfur dioksida, dan pridin dalam larutan metanol). Pereaksi karl fischer pada metode ini sangat tidak stabil dan peka terhadap uap air oleh ...
Controllers: DL-3R Controller for 2 or 3 radios
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