Die stufenweise Verseifung von Fetten durch Schwefelsäure

Grün, Adolf; Corelli, Octavian

doi:10.1002/ange.19120251907

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Reaction Of Isopropylidene Derivatives Of Polyhydric Alcohol...1

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1918

1943

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“…7. Reaction of sulfuric acid esters of halohydrins of polyhydric alcohols with fatty acids A variation of a method previously reported consists in preparing sulfuric acid esters from halohydrins such as glycerol monochlorohydrin or dichlorohydrin by the action of concentrated sulfuric acid (208,214) or of chlorosulfonic acid (537) in the cold, and by reacting the product with fatty acid. In the former method, the fatty acid is introduced dissolved in two times its weight of concentrated sulfuric acid.…”

Section: Reaction Of Isopropylidene Derivatives Of Polyhydric Alcohol...mentioning

confidence: 99%

“…Reaction of fully esterified polyhydric alcohols with concentrated sulfuric acid Hydrolysis of glycerides may be carried out with concentrated sulfuric acid in the cold. It was found (214,218,537) that if concentrated sulfuric acid was allowed to act on triglycerides at temperatures up to 70°C., 50 to 65 per cent of the material was hydrolyzed to free fatty acid and glycerol, while the remaining glycerides presented a mixture of triglycerides with diglycerides and a small percentage of monoglycerides. This seems to happen during the sulfonation of oils.…”

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