I have always mixed HC110 into a stock solution and then used it from there. I don't like trying to work with a syrup at high ratio mixtures.(posted 8674 days ago)The Kodak data says that the shelf life for stock solution in a half- full, tightly closed bottle is two months. When the bottle is full, the shelf life is six months.
What I did when I used HC110 from stock is I stored it in a collapsible bottle. These bottles cost about $5 or so, and are available in many sizes.