Analytical Chemistry Question:
WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR?
Answers:
Answer #1
NO
NO
Answer #2
Di-sodium tartrate dihydrate, Na2C4H4O6•2H2O (M = 230.08 g/mol), is the primary standard
for Karl Fischer titration since it is stable and non-hygroscopic. Under normal conditions, it
contains 15.66% of water. Since it slowly dissolves in methanol, you should first grind it to a
fine powder before using it or use special Di-sodium tartrate dehydrate for Karl Fischer
Titration. But as practically before weight it must be dry at 102°C for few minutes.
Di-sodium tartrate dihydrate, Na2C4H4O6•2H2O (M = 230.08 g/mol), is the primary standard
for Karl Fischer titration since it is stable and non-hygroscopic. Under normal conditions, it
contains 15.66% of water. Since it slowly dissolves in methanol, you should first grind it to a
fine powder before using it or use special Di-sodium tartrate dehydrate for Karl Fischer
Titration. But as practically before weight it must be dry at 102°C for few minutes.