Silica gel 60 F precoated-plate (20 × 20 cm) was a product of Alumgram, Germany. Silica gel 60 (50 to 200 mesh) was obtained from Lab. Tech. Chemicals, U.S. Aluminium Oxide was from Associated Chemical Enterprises, South Africa
Silica gel 60 F precoated-plate (20× 20 cm) was a product of Alumgram, Germany. Silica gel 60 (50 to200 mesh) was obtained from Lab. Tech. Chemicals, U.S.Aluminium Oxide was from Associated Chemical Enterprises, SouthAfrica