68131-31-7 68410-88-8 Alkaline treated spent sulfite liquor Derivative of spent pulping liquor from the sulfite pulping process, using sodium hydroxide EINECS 268-613-8 Lime fractionated, spent pulping liquor, filtrate Low temp, alkali treated, spent pulping liquor Low temperature alkali treated spent pulping liquor Sulfite liquors and Cooking liquors, spent, alkali-treated