Buffer Cleaner
Oman Chemical is leading one Largest Supplier, Manufacture a
1. The stirrer is of the type designed by Hershberg, but it has a single paddle of 16-gauge Nichrome wire.
2. A bubble counter is employed for indicating nitrogen flow.
3. The water content of the ethanol, determined by Karl Fischer analysis, is 0.02–0.10%.
4. Benzyl chloride is redistilled before use. The fraction collected at 40–41° /6 mm. is used.
5. The flask is disconnected periodically from the gas train and stirring mechanism for weighing.