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- Lignosulfonates abstract "Lignosulfonates, or sulfonated lignin, (CAS number 8062-15-5) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping.Most delignification in sulfite pulping involves acidic cleavage of ether bonds, which connect many of the constituents of lignin. The electrophilic carbocations produced during ether cleavage react with bisulfite ions (HSO3-) to give sulfonates. R-O-R' + H+ → R+ + R'OHR+ + HSO3- → R-SO3HThe primary site for ether cleavage is the α-carbon (carbon atom attached to the aromatic ring) of the propyl (linear three carbon) side chain. The following structures do not specify the structure since lignin and its derivatives are complex mixtures: the purpose is to give a general idea of the structure of lignosulfonates. The groups labeled "Q" can be a wide variety of groups found in the structure of lignin. Sulfonation occurs on the side chains, not on the aromatic rings, like in p-toluenesulfonic acid.Lignosulfonate have very broad ranges of molecular mass (they are very polydisperse). A range of from 1000–140,000 da has been reported for softwood lignosulfonates with lower values reported for hardwoods.".
- Lignosulfonates thumbnail Lignosulfonate.png?width=300.
- Lignosulfonates wikiPageID "3049349".
- Lignosulfonates wikiPageRevisionID "592190981".
- Lignosulfonates hasPhotoCollection Lignosulfonates.
- Lignosulfonates subject Category:Organic_polymers.
- Lignosulfonates subject Category:Papermaking.
- Lignosulfonates subject Category:Petroleum_production.
- Lignosulfonates subject Category:Polyelectrolytes.
- Lignosulfonates type Abstraction100002137.
- Lignosulfonates type Chemical114806838.
- Lignosulfonates type Compound114818238.
- Lignosulfonates type Electrolyte114847929.
- Lignosulfonates type Material114580897.
- Lignosulfonates type Matter100020827.
- Lignosulfonates type Mixture114586258.
- Lignosulfonates type OrganicPolymers.
- Lignosulfonates type Part113809207.
- Lignosulfonates type PhysicalEntity100001930.
- Lignosulfonates type Polyelectrolyte114590441.
- Lignosulfonates type Polyelectrolytes.
- Lignosulfonates type Polymer114994328.
- Lignosulfonates type Relation100031921.
- Lignosulfonates type Solution114589223.
- Lignosulfonates type Substance100019613.
- Lignosulfonates comment "Lignosulfonates, or sulfonated lignin, (CAS number 8062-15-5) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping.Most delignification in sulfite pulping involves acidic cleavage of ether bonds, which connect many of the constituents of lignin. The electrophilic carbocations produced during ether cleavage react with bisulfite ions (HSO3-) to give sulfonates.".
- Lignosulfonates label "Ligninsolfonati".
- Lignosulfonates label "Ligninsulfonat".
- Lignosulfonates label "Lignosulfonates".
- Lignosulfonates label "リグニンスルホン酸".
- Lignosulfonates sameAs Ligninsulfonat.
- Lignosulfonates sameAs Ligninsolfonati.
- Lignosulfonates sameAs リグニンスルホン酸.
- Lignosulfonates sameAs m.08n2zl.
- Lignosulfonates sameAs Q417184.
- Lignosulfonates sameAs Q417184.
- Lignosulfonates sameAs Lignosulfonates.
- Lignosulfonates wasDerivedFrom Lignosulfonates?oldid=592190981.
- Lignosulfonates depiction Lignosulfonate.png.
- Lignosulfonates isPrimaryTopicOf Lignosulfonates.
