lignin sulfonate

noun Chemistry.
a brown powder consisting of a sulfonate salt made from waste liquor of the sulfate pulping process of soft wood: used in concrete, leather tanning, as an additive in oil-well drilling mud, and as a source of vanillin.
Also called lignosulfonate [lig-nuh-suhl-fuh-neyt] .
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Example sentences
Zeolite fines were pelletized by using a lignosulfonate as the binder.
Another treatment is an organic derivative of pulp and paper processing, lignosulfonate, also called lignin.
Mud containing chromium lignosulfonate, ferrochrome lignosulfonate or other chromium compounds shall not be used.
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