PRODUCT 1,3-BUTYLENE GLYCOL

To provide a product 1,3-butylene glycol that is odorless and, even after a lapse of time, does not emit a malodor, and barely causes coloration under basic conditions.SOLUTION: A product 1,3-butylene glycol has a weight proportion of 90 ppm or less as calculated from the sum of the peak absorbances...

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Bibliographic Details
Main Authors SHIROMURA TAKASHI, SUGURI AKIHIRO, KANEDA JUN, IWASA TOMOHIRO
Format Patent
LanguageEnglish
Japanese
Published 01.12.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:To provide a product 1,3-butylene glycol that is odorless and, even after a lapse of time, does not emit a malodor, and barely causes coloration under basic conditions.SOLUTION: A product 1,3-butylene glycol has a weight proportion of 90 ppm or less as calculated from the sum of the peak absorbances of a 2,4-dinitrophenylhydrazine derivative of 2-(hydroxyethyl)-2,6-dimethyl-1,3-dioxane in an HPLC analysis under specific conditions after the preparation of a specific sample.SELECTED DRAWING: None 【課題】 無臭かつ経時による臭気が発生しないことに加えて、塩基性条件下での着色も生じにくい、製品１，３－ブチレングリコールを提供すること。【解決手段】 下記試料調製実施後の下記条件下におけるＨＰＬＣ分析において、２－（ヒドロキシエチル）－２，６－ジメチル－１，３－ジオキサンの２，４－ジニトロフェニルヒドラジン誘導体のピークの吸光度の和により算出される重量率が９０ｐｐｍ以下である、製品１，３－ブチレングリコール。【選択図】なし
Bibliography:Application Number: JP20210084070