Funny you should mention this as I just noticed a similar issue with HCl and a plastic bottle which is possibly HDPE.
I opened my box of halides and noticed that a the aluminium crimp on the top of a vial of tantalum chloride was corroded. Prime suspect was the
anhydrous AlCl3 in a (HDPE??) bottle in the same box, which on sniffing, did externally smell slightly of HCl. Then I noticed weird bubbles quite
similar to that in the bottle, and also on some other nearby (probably HDPE) bottles. |