08:17 – A month or so ago, one of the commenters here made a brilliant suggestion about using wash bottles to fill chemical bottles with the chemicals that fume obnoxiously, such as 6 M solutions of acetic acid, ammonia, and hydrochloric acid. So the last time I ordered from one of our wholesalers I included a box of a dozen 500 mL unitary wash bottles.
Most wash bottles have their caps pierced by soft tubing that extends loosely down into the bottle. These unitary bottles have a standard cap. The tubing is built into the bottle, extending down the inside surface of the bottle to the bottom. That makes them a lot easier to refill and use than standard wash bottles. So yesterday when I noticed that we were running short of bottles of 6 M ammonia, I decided to give it a try. It works perfectly. I no longer have to work under a fume hood, which makes filling bottles a lot more convenient.