Lignosulfonates (LS) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping. LS's are used for emulsion stabilization and Dispersants,a binder to suppresses dust on unpaved roads, and in water treatment.
Lignosulfonates (LS) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping. LS's are used for emulsion stabilization and Dispersants,a binder to suppresses dust on unpaved roads, and in water treatment.
Lignosulfonates have very broad ranges of molecular mass (they are very polydisperse). A range of from 1,000 to 140,000 Da has been reported for softwood lignosulfonates with lower values reported for hardwoods. Sulfonated Kraft lignin tends to have smaller molecules at 2,000–3,000 Da. SL and LS are non-toxic, non-corrosive, and biodegradable. A range of further modifications may be applied to LS and SL, including oxidation, hydroxymethylation, sulfomethylation, and a combination thereof.
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