Study Set Content:
Gelatine Test:
Tannin Solution + 1% Gelatine Solution + 10%
NaCl Solution
Gelatine Test: gives what color
White Buff Colour precipitate
Ferric chloride test:
Tannin extract + Ferric Chloride Solution
Blue colour
Hydrolysable tannin
Brownish green colour
Condensed tannin
Phenazone Test:
Aqueous extract of drug + Sodium Hydrogen
Phosphate, Heated together
after heating it is
Cooled and filtered.
Filtrate + (blank) solution
Phenazone
**. Phenazone Test: gives**
Bulky coloured precipitate.
Chlorogenic acid test: Drug extract +
Aqueous ammonia
gives
Green colour
Vanillin HCl acid test:
Sample solution + vanillin HCl
reagent
vanillin HCl
reagent
(Vanillin 1g + Alcohol + 10ml conc.
HCl)
Vanillin HCl acid test: gives
Pink or Red Colour(Phloroglucinol
formation)
dipped in aqueous plant extract
Match stick
Dried near the
flame
Moistened with
conc. HCl
Warm near
flame
Match stick wood turns
Pink-Red
colour(Phloroglucinol formation)
ORGANOLEPTIC TEST color
black
