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Application filed by Univ De Stat Din MoldovafiledCriticalUniv De Stat Din Moldova
Priority to MDA20020097ApriorityCriticalpatent/MD2147G2/en
Publication of MD2147F1publicationCriticalpatent/MD2147F1/en
Publication of MD2147G2publicationCriticalpatent/MD2147G2/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
The invention relates to a process for obtaining of sodium dihydroxyfumaric acid, used as antioxidant for wine material stabilization. The process includes oxidation of the tartaric acid with hydrogen peroxide in the presence of catalyst - the Mohr's salt and hydroquinone, in the capacity of reducer, with that the concentration of the hydrogen peroxide is of 40%, with the subsequent addition of the aqueous solution of sodium chloride at cooling, in the following ratio, g:tartaric acid 150hydrogen peroxide (anhydrous) 34,0...42,5Mohr's salt 4,2...10,5hydroquinone 0,075...0,375sodium chloride 90...281.Claims: 1
MDA20020097A2002-03-152002-03-15Process for obtaining of sodium dihydroxyfumaric acid
MD2147G2
(en)
Method for producing an essentially chlorite-free,stable, aqueous chlorine-oxygen solution, the chl orine-oxygen solution obtained by means of said method, and the use of the same