Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB22740/34A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
Original Assignee
Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
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Application filed by Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et CamarguefiledCriticalCompagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
Publication of GB424047ApublicationCriticalpatent/GB424047A/en
C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
C07C51/093—Preparation of carboxylic acids or their salts, halides or anhydrides by hydrolysis of —CX3 groups, X being halogen
Abstract
Dichloracetic acid is produced by heating pentachlorethane with sulphuric acid of 88--99 per cent strength preferably at 130--170 DEG C. Water or diluted sulphuric acid is preferably added as required to prevent the concentration of the sulphuric acid becoming too high. The reaction mixture may be poured upon ice, the unreacted pentachlorethane poured off, and the dichloracetic acid extracted with ether or other solvent.
GB22740/34A1933-08-171934-08-04Process for the preparation of dichloracetic acid
ExpiredGB424047A
(en)