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Title Transcription
セキガイ キュウシュウ スペクトル ニヨル サン リグニン ノ アルカリ カヨウカ キコウ ノ ケントウ
Title Alternative (English)
Infrared Spectra of the Soluble Part of the Strong Acid Lignin dissolved by the Alkaline Solution
File
language
jpn
Author
Fukuwatari, Shichiro
Description
The β-lignin which was precipitated at pH. 3 from the soluble part of the technical sulfuric acid lignin dissolved by the sodium hydroxide of the concentration 6%, under 165-170℃, 2 hr, showed strong iufrared absorption band frequencies 1710 <cm>^<-1>, while the α-lignin insoluble at same treatment had not shown.
As a result of the comparison of specta of these and other lignin products, it may be given as a conclusion that one of the mechanisms of the resolution of the acid lignin by alkali is due to the formation of the carboxyl groups from the aldehyde or ketone groups of the side chain of the molecules of the acid lignin by the oxidation cleavage and that these structural changes are effected proportionally to the concentrations and quantities of alkali per the acid lignin.
Journal Title
島根農科大学研究報告
Volume
14
Start Page
A(113
End Page
118)
ISSN
05598311
Published Date
1965-12-31
NCID
AN00108241
Publisher
島根農科大学
Publisher Aalternative
The Shimane Agricultural College
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
Remark
A,Bを含む
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