USP specification; dry it at 50 and at the pressure not exeeding 5 mm of mercury for 3 hours
i want to know....
if I use spec according to usp , i must use a vacuum oven ?
how much a pressure in a hot air oven. ( i think the pressure not exeeding 5 mm ? )
thank you for your kindness
A hot air oven is at 760 mm pressure (= 1 atmosphere). To produce a vacuum less than 5 mm you will need a vacuum pump and vacuum oven.
If you want to use this USP procedure you must have a vacuum oven. A hot air oven will not be acceptable.