... (4).GMP Principle Hot air enters into stirring and crushing and drying chamber from the bottom of drier with ... hydroxide, all kinds of heavy metallic salt, synthetic cryolite and so on. Organic compounds: fenatrol (insecticide of agrochemicals), ... acid, germicide, sodium oxalate, cellulose acetate and so on. Ceramics: kaoline, silicone trioxide, clay and so on. Dyestuff: anthraquinone, black ferric ...