Kraft Cooking Liquors white liquor: strongly alkaline sulution(pH-14 main active compounds: NaoH and Na,s small amounts: Na2 CO3, Na2 SO4, Na2S2O3, NaCl, CacO3,etc main equilibria prevail in white liquor Naoh+ho Nat+oh-+ho Nas+ho 2Nat+ s2-+HO S--+HO HS- +OH 制浆造纸原理与工程制浆造纸原理与工程 Kraft Cooking Liquors white liquor: strongly alkaline sulution (pH~14) main active compounds: NaOH and Na2 S small amounts: Na2CO3 , Na2 SO4 , Na2 S2O3 , NaCl, CaCO3 ,etc. main equilibria prevail in white liquor: NaOH + H2O Na+ + OH- + H2O Na2 S + H2O 2Na+ + S 2- + H2O S 2- + H2O HS- + OH-