Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
ash content |
the residue remaining after incineration represents the inorganic salts naturally occurring in the drug and adhering to it |
|
total ash |
represents the inorganic salts substances present (residue remaining after incineration) |
|
acid insoluble ash |
the art of the total ash which is insoluble in diluted HCl or the ash treated with 3N HCl |
|
sulfated ash |
the residue are carbonized mass if treated with one ml of sulfuric acid and further incineration after evaporating the acid under the hoof |
|
500-550 |
very dull heat |
|
550-700 |
dull red heat |
|
800-1000 |
bright red heat |
|
yellow red heat |
1000-1200 |
|
1200-1600 |
white heat |
|
residue on ignition |
it is the determination of ash content by ignition to dull redness |
|
residue on ignition |
it is performed to control the amount of inorganic matter that may be container in substances |
|
acetozalamide, aspirin, cocaine |
example of residue on ignition |
|
loss on ignition |
it provided a means of determining the percentage of test material which is volatilized and driven off under specified conditions |
|
loss on ignition |
it is the amount of volatile matter lost when heated |
|
ignite to constant weight |
ignition shall be continued at 800oC otherwise indicated until two consecutive weighs do not differ |
|
dry to constant weight |
shall be continued until two consecutive weighings do not differ |
|
loss on drying |
determine the amount of volatile matter |
|
titrimetric method or Karl Fishcer Method, azeotropic distillation, gravimetric analysis |
methods in water content determination |
|
Direct titration, residual titration, coulometric titration |
methods under titrimetric method |
|
toluene, benzene, xylene |
solvents in azeotropic titration |
|
for drug containing ether-soluble constituents and for drug containing no constituents |
two types in gravimetric method |
|
dessicator, oven, moisture balance |
equipments used in gravimetric method |