C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/434
C07F 7/30 (2006.01) C01G 17/04 (2006.01)
Patent
CA 1201719
PREPARATION OF BIS-CARBOXY ETHYL GERMANIUM SESQUIOXIDE AND ITS PROPIONIC ACID DERIVATIVES Abstract Reaction mixture of germanium dioxide and hypophosphorous acid or its salts in hydrochloric acid is extracted with organic solvent. This resultant is then reacted with acrylic acid or its derivatives, and further hydrolyzed to provide bis-carboxy ethyl germanium sesquioxide or its propionic acid derivatives.
419771
Chang Ching-Te
Lee Lian-Tze
Su Hsueh-Ling
Gowling Lafleur Henderson Llp
Industrial Technology & Research Institute
LandOfFree
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