... intermediate, white carbon black, tea, catalyst of oxalic acid, promote agent m,m.d, catalyst, deposited carbon powder, N-acetyl- ... sulfanily chloride, p-aminosalicylic acid, p-phthalic acid, diethyl aniline, titanium dioxide ... white potato, tail coal, stearate, zein, medicine, medical agent, ferric oxide, less residue and so on.Principle The ...