[PDF] acid hydrolysis of cellulose in zinc chloride solution

Zinc chloride is an effective swelling agent of cellulose, and it dissolves native cellulose and reduces its crystallinity at high concentration, also hydrolysis of cellulose in the zinc chloride solution has been reported to have a higher rate with an increasing glucose yield (Cao et al., 1995).
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  • How do you do acid hydrolysis of cellulose?

    The cellulose hydrolysis protocol itself first involved the preparation of an acid solution by mixing some 95–98 wt% sulfuric acid with water, to get the required mass ratio of sulfuric acid/dry cellulose (R1) and mass percentage of sulfuric acid (C1) (when accounting for cellulose humidity) and cooled to 5–10°C in an

  • Can cellulose be hydrolyzed by acid?

    As the main component of lignocelluloses, cellulose is a biopolymer consisting of many glucose units connected through ?-1,4-glycosidic bonds. Breakage of the ?-1,4-glycosidic bonds by acids leads to the hydrolysis of cellulose polymers , resulting in the sugar molecule glucose or oligosaccharides .

  • Can HCl dissolve cellulose?

    Here, unlike previous reports, we found that concentrated HCl swells cellulose into a gel-like state at temperatures close to freezing (4 °C), while only partially hydrolyzing and dissolving a small fraction of cellulose as large cellodextrins.
  • The principle of concentrated acid hydrolysis is that crystalline cellulose can be completely dissolved in 72% sulfuric acid or 42% hydrochloric acid or 77–83% phosphoric acid at a lower temperature, resulting in the homogeneous hydrolysis of cellulose.
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Acid hydrolysis of cellulose in zinc chloride solution

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