<p>Somehow, my bottle of HC-110 developed a pinhole in the base of the bottle, and all of it (about half a pint was left) leaked into the dishpan where I kept my chemistry. Haven't had an opportunity to develop stuff lately, so I don't know how long it's been sitting there, but I found an entirely empty bottle sitting in a congealed puddle of goo. Thank goodness it was in the pan, or it would have been a much bigger mess.</p>
<p>Of course now that it's only available in liters, the price is up to about $35.00. My nearest supplier is Unique Photo, who have it listed for that. (About $7 cheaper at B&H, and closer in terms of distance too, but add in the $14.00 toll at the tunnel and it's not competitive anymore, and they won't ship it. If I was in the city anyway, it might have been worth a trip.)</p>
<p>So I'm going to pick up another bottle, but I was wondering, two things. One, how did that happen? Does HC-110 develop pressure while standing? Because if not, I can't see how this thick stuff came out of that tiny opening, especially with the lid screwed on tightly, simply because of the vacuum that ought to have been in the bottle. And two, I don't suppose the goo is salvageable at all? Especially since I have no idea how much it's concentrated by evaporation. I suppose I could scrape it up and re-bottle it, but I have no way of knowing how to dilute it back to its original concentration. Is there anything useful I can do with a half-pint of congealed HC110, or should I just rinse it all down the drain?</p>