Why are chemistry droppers bad at holding bromine?
Since the standard dropper is designed to hold common liquid such as water or ethanol, the capillary size have some particular size. When it comes to bromine, the density is 3 times of water. In other words, the dropper need to hold a super heavy droplet, so you could expect that it won't be as efficient as usual. In addition, your previous question hinted on the density, so it is pretty obvious right?