| − | Tall oil is the oily mixture of [[rosin acids]], [[fatty acids]], and other materials obtained by [[acid]] treatment of the [[alkaline]] [[liquors]] from the [[digesting]] (pulping) of [[pine wood]]. | + | '''Tall oil''' is the oily mixture of [[rosin acids]], [[fatty acids]], and other materials obtained by [[acid]] treatment of the [[alkaline]] [[liquors]] from the [[digesting]] (pulping) of [[pine wood]]. |