Hate to keep posting but believe that V_L has the right idea about the tinture. Just add 5g Hg to one bottle. Then pour about all liquid and leave what should be 4.5g Hg blob in the bottle. Add more tinture, repeat, parsley, serves two.
This to me make sense to SWIM for a couple reasons. 1. Don't have to fuck around measuring how much Hg was put in the bottle, (vapors, scales, and shit). 2. Basically should only have to touch mercury once per 10 bottles.
Pardon my friend officer, He's a little slow.