Journal of Scientific & Industrial Research: Physical sciences. B, Volumen12,Parte2Council of Scientific & Industrial Research, 1953 |
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Página 129
... separated out . This was extracted with ether , the ether distilled off , and the residue treated with ice - cold water when a colourless solid separated out . It crystallized from ethyl acetate - petroleum ether mixture as colourless ...
... separated out . This was extracted with ether , the ether distilled off , and the residue treated with ice - cold water when a colourless solid separated out . It crystallized from ethyl acetate - petroleum ether mixture as colourless ...
Página 151
... separated . The mother liquor on the removal of ether yielded a resinous mass R. The aqueous residue after extraction with ether was thrice extracted with 50 cc . lots of ethyl acetate . On cooling the ethyl acetate solution at 0 ° C ...
... separated . The mother liquor on the removal of ether yielded a resinous mass R. The aqueous residue after extraction with ether was thrice extracted with 50 cc . lots of ethyl acetate . On cooling the ethyl acetate solution at 0 ° C ...
Página 290
... separated as aggregates of colourless stout prismatic needles melting at 155 ° -56 ° C . It gave no colour with ferric chloride in alcohol , gave a green colour with concentrated nitric acid and was sparingly soluble in aqueous alkali ...
... separated as aggregates of colourless stout prismatic needles melting at 155 ° -56 ° C . It gave no colour with ferric chloride in alcohol , gave a green colour with concentrated nitric acid and was sparingly soluble in aqueous alkali ...
Contenido
CONTENTS | 73 |
CONTENTS | 127 |
SULPHONAMIDE DERIVATIVES AS POSSIBLE ANTIMALARIALS | 177 |
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Journal of Scientific & Industrial Research: Physical sciences. B, Volumen21 Vista de fragmentos - 1962 |
Journal of Scientific & Industrial Research: Physical sciences. B, Volumen21 Vista de fragmentos - 1962 |
Journal of Scientific & Industrial Research: Physical sciences. B, Volumen21 Vista de fragmentos - 1962 |
Términos y frases comunes
acetone acetyl activity alkali amine amino acid anhydride anode aqueous benzaldehyde biol biotin buffer carbon cathode cell cellulose cent charcoal Chem Chemical cholerae chromone citrate coal particles colour colourless compounds concentration condensation cotton crystallized from alcohol curve density diameter dilute dissolved distilled effect electrolyte enzyme ether ethyl acetate Experimental procedure extract ferric chloride filtered filtrate formation fraction gammexane gelatinase given in Table heat of wetting hydrochloric acid hydrogen hydrolysis Inaba Indian industr inhibition inositol iodine ions isoflavone lignite luteolin melting mesh metabolism method methyl methyl formate moisture molecule nicotinic acid obtained Ogawa oxidation oxygen phenol phosphate potassium prepared present Proc pulp pyrites quinine reaction mixture reduction refluxed residue sample sodium alginate sodium hydroxide soluble solution solvent substrate sulphate sulphuric acid temperature tion toluene tryptophane Vibrio cholerae viscose washed Water vibrio yield